Ferramentas en liña gratuítas. Sen límites. Sen inicio de sesión.
Comprime, converte e crea, todo gratis para sempre.
Ferramentas de tendencia
Ver todoCompresor de PDF
Comprime ficheiros PDF para reducir o seu tamaño. Sen perda de calidade, sen límite de tamaño de ficheiro.
Compresor de imaxe
Comprime imaxes JPG, PNG, WebP e AVIF. Ver comparación antes/despois.
Fusión de PDF
Combina varios ficheiros PDF nun só. Arrastra para reordenar as páxinas.
Xerador de códigos QR
Xera códigos QR para URL, texto, WiFi e moito máis. Sen marca de auga.
Selector de cores e xerador de paletas
Escolle cores, converte entre HEX/RGB/HSL e xera paletas harmoniosas.
Formateador JSON
Formatear, validar, minimizar e explorar datos JSON. Vista en árbore, resaltado de sintaxe e copia cun só clic.
Xerador de contrasinais
Xera contrasinais seguros e aleatorios con lonxitudes, tipos de caracteres e exclusións personalizados. Sen límites, sen inicios de sesión.
Redimensionador de imaxes
Cambia o tamaño das imaxes por dimensións ou porcentaxes. Mantén a relación de aspecto, escolla o formato de saída, sen perda de calidade.
Video to GIF
Turn an MP4, WebM, or MOV clip into a high-quality animated GIF. Pick the clip range, frame rate, and width. Runs entirely in your browser.
Audio Extractor
Extract the audio track from any video as MP3, M4A, AAC, or lossless WAV. No upload — everything is processed locally in your browser.
Video Trimmer
Cut a clip from any video by dragging start and end handles. Fast lossless trimming or frame-precise mode. Runs entirely in your browser.
Video Converter
Convert video between MP4, WebM, MOV, MKV, and AVI. Great for making WebM play on iPhones or turning MOV into MP4. No upload — runs in your browser.
Audio Converter
Convert audio between MP3, WAV, FLAC, OGG, AAC, and M4A with bitrate control. Perfect for M4A to MP3. Everything is processed locally in your browser.
Audio Trimmer
Cut a clip from any audio file on an interactive waveform. Drag handles, preview the selection, add fades. Great for ringtones and podcast clips. Runs in your browser.
Screen Recorder
Record your screen, a window, or a browser tab with system audio and microphone. No download, no account, no watermark — the recording never leaves your browser.
HEIC to JPG Converter
Convert iPhone HEIC/HEIF photos to JPG, PNG, or WebP — one at a time or in bulk. Strips GPS metadata and runs entirely in your browser, so photos never upload.
Metadata Remover
Strip hidden metadata — EXIF/GPS location, author names, and edit history — from photos, PDFs, and Office documents. Lossless and 100% in your browser.
PDF Redactor
Black out sensitive text in a PDF for good. Pages are flattened to images so the hidden content is permanently destroyed — not just covered. Runs entirely in your browser.
Mock Data Generator
Generate realistic fake test data — names, emails, addresses, dates, numbers — and export as JSON, CSV, SQL, or NDJSON. No row limits, no account, runs in your browser.
cURL to Code Converter
Paste a cURL command and get equivalent code in JavaScript (fetch), Node.js, Python (requests), or Go. Parsed entirely in your browser — tokens never leave your device.
PDF Compare
Compare two PDFs page by page — side by side, as an onion-skin overlay, or with changed areas highlighted in red. Both files stay in your browser.
Cron Expression Explainer
Translate any cron expression into plain English and see the next run times. Supports ranges, lists, steps, names, and @macros. Runs in your browser.
Excel / XLSX Viewer
Open and view .xlsx, .xls, .csv, and .ods spreadsheets without Excel or Google Sheets. Switch sheets and export to CSV or JSON. Runs entirely in your browser.
Subtitle Converter
Convert subtitles between SRT, WebVTT, SBV, LRC, and ASS while preserving timing. Input format is auto-detected. Runs entirely in your browser.
Audio Joiner
Merge multiple audio files into one, in any order, with optional crossfade. Export as MP3, M4A, or WAV. Runs entirely in your browser — no upload.
PDF Form Filler
Fill in an interactive PDF form and optionally flatten it so the answers can't be edited. Runs entirely in your browser — the document is never uploaded.
CSV to JSON
Convert CSV (or TSV) into JSON — array of objects or arrays — with a proper RFC 4180 parser, delimiter auto-detection, and type conversion. Runs in your browser.
GIF to MP4
Convert an animated GIF to MP4 or WebM video — far smaller files that play inline on social media. Runs entirely in your browser, no upload.
Remove Audio from Video
Mute a video by removing its audio track — instant and lossless, the picture is untouched. Runs entirely in your browser, no upload.
Video Speed Changer
Speed up or slow down a video from 0.25× to 4×, with pitch-corrected audio. Great for slow-motion and timelapse. Runs entirely in your browser.
Rotate Video
Rotate or flip a video to fix footage shot sideways or upside down. 90°, 180°, and mirror options with a live preview. Runs entirely in your browser.
Video Frame Grabber
Capture a still image from any frame of a video at full resolution. Scrub, step frame-by-frame, and save as PNG or JPG. Instant and entirely in your browser.
Audio to Video
Turn an audio file plus a cover image into an MP4 — the standard way to upload a song, mix, or podcast to YouTube. Runs entirely in your browser.
Meme Generator
Add classic top and bottom captions to any image in the iconic meme style. Live preview, download as PNG. Runs entirely in your browser — never uploaded.
Eliminador de fondo
Elimina os fondos de imaxes ao instante con AI. Obtén saídas PNG transparentes. Procesamento totalmente local: as túas imaxes nunca saen do teu dispositivo.
PDF a Word
Converte ficheiros PDF en documentos editables de Word (.docx). Extraer texto e formato. Todo o procesamento ocorre no teu navegador.
Word a PDF
Converte documentos de Word (.docx) a PDF. Conserva o contido do texto. Sen límites de tamaño de ficheiro, sen cargas.
PDF Splitter
Split a PDF into individual pages or extract specific page ranges. Download pages separately or as a ZIP.
Timestamp Converter
Convert Unix timestamps to readable dates and vice versa. Supports UTC and local time, seconds and milliseconds.
Markdown Editor
Write and preview Markdown in real time. Supports headings, bold, italic, code blocks, tables, and lists.
Color Converter
Convert colors between HEX, RGB, HSL, HSV, and CMYK formats instantly. Includes a lightness scale and preset swatches.
Coin Flip & Spin Wheel
Flip a virtual coin, spin a customizable wheel, or randomly pick from a list of options. Cryptographically fair.
CSS Gradient Generator
Create linear, radial, and conic CSS gradients with a live preview. Copy the CSS with one click.
Random Number Generator
Generate random numbers in any range, create unique number lists, or roll dice. Uses cryptographically secure randomness.
Aspect Ratio Calculator
Calculate the aspect ratio of any dimensions, or find the missing dimension from a known side and ratio. Includes 12 common presets.
UUID Generator
Generate version 4 UUIDs instantly. Bulk generate up to 50 at once. Cryptographically secure — your data never leaves the browser.
Countdown Timer
Count down to any date and time. Set a custom date or use quick presets (5 min, 15 min, 1 hour). No sign-up needed.
JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON. Handles nested values, quoted fields, and commas in values automatically.
Tip Calculator
Calculate how much to tip and split the bill between any number of people. Choose a tip percentage or enter a custom amount.
Age Calculator
Calculate your exact age in years, months, days, hours, and total days. Find your zodiac sign and days until your next birthday.
Percentage Calculator
Calculate percentages instantly: find X% of Y, what percentage X is of Y, and the percentage change between two values.
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes from any base color. Copy hex codes in one click.
BMI Calculator
Calculate your Body Mass Index in metric or imperial units. See your BMI category, healthy weight range, and where you fall on the scale.
Loan & Mortgage Calculator
Calculate monthly payments, total interest, and view a full amortization schedule for any loan or mortgage. Supports any term and interest rate.
Password Strength Checker
Check how strong your password is with entropy analysis, crack time estimates, and a detailed checklist of requirements. Runs entirely in your browser.
Time Zone Converter
Convert times between any of 20 world time zones simultaneously. Use live current time or enter a custom date and time to compare.
Pomodoro Timer
Stay focused with the Pomodoro technique. Customise work and break durations, track completed sessions, and hear an audio alert when each phase ends.
JSON to TypeScript Converter
Generate TypeScript interfaces or type aliases from any JSON object or array. Paste your JSON and get ready-to-use TypeScript types instantly.
JWT Decoder
Decode and inspect any JSON Web Token. View header, payload, expiration, and standard claims. Everything runs locally in your browser — tokens never leave your device.
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in both directions. Paste in either format and get the converted output instantly — no server upload required.
Online Stopwatch
Precision stopwatch with lap recording, fastest/slowest lap highlighting, and keyboard shortcuts. Counts up from zero with millisecond accuracy.
PNG to ICO Favicon Converter
Convert PNG, JPG, WebP, or SVG images into multi-size .ico favicon files. Pick the sizes you want bundled (16, 32, 48, 64, 128, 256) and download a single .ico.
CSS Box Shadow Generator
Visual builder for CSS box-shadow with live preview, multi-layer stacking, color picker, inset toggle, and one-click copy. Includes Material, neumorphism, and glow presets.
HTML to Markdown Converter
Convert HTML to clean Markdown. Handles headings, lists, links, images, code blocks, tables, and blockquotes. Perfect for moving content out of CMSes.
Markdown to HTML Converter
Convert Markdown to clean HTML with live preview. Use the source view to copy ready-to-paste HTML for blogs, CMSes, or email templates.
CSV Viewer & Table Renderer
Paste or upload CSV/TSV and render it as a sortable, searchable table. Auto-detects delimiters. Inspect data dumps without opening Excel.
OCR — Image to Text Extractor
Extract text from images, screenshots, and scanned documents using the open-source Tesseract OCR engine. Supports 20 languages. Runs entirely in your browser.
QR Code Reader
Scan QR codes from uploaded images or live webcam. Decode URLs, Wi-Fi credentials, contact cards, phone numbers, and any other QR content.
Photo EXIF Metadata Viewer
View camera settings, GPS location, and EXIF metadata in your photos. One-click strip EXIF to download a privacy-safe version with metadata removed.
Image Color Palette Extractor
Extract the dominant colors from any image using k-means color quantization. Get hex codes for the top 2-16 colors in your photo or logo.
Image Cropper
Crop images with drag-to-select, optional aspect ratio constraints (1:1, 16:9, 4:3, etc.), rule-of-thirds grid, and multi-format export (JPEG, PNG, WebP).
Audio Spectrum Analyzer
Visualize audio frequencies in real time as bars, waveforms, or circular spectra. Works with audio files or live microphone input — runs in your browser.
Text to Speech
Convert text to natural-sounding speech using your browser's built-in voices. Adjustable rate, pitch, and volume — no API key, no upload, no cost.
Speech to Text Dictation
Live voice transcription using your browser's built-in speech recognition. Supports 30+ languages. Dictate notes, emails, or transcripts hands-free.
WCAG Color Contrast Checker
Check whether two colors meet WCAG AA and AAA contrast standards for accessibility. Live preview at multiple text sizes with automatic suggestions when contrast is too low.
SQL Formatter & Beautifier
Pretty-print SQL queries with proper indentation, configurable keyword case, and line breaks on major clauses. Works with any SQL dialect.
Diceware Passphrase Generator
Generate memorable, high-entropy passphrases by combining random words. Configurable word count, separator, and capitalization — uses cryptographically secure randomness.
Cron Expression Builder
Build, validate, and explain cron expressions for scheduled tasks. Live plain-English description, next-5-runs preview, and common pattern presets.
Compound Interest Calculator
Project investment or savings growth with regular contributions. Shows total contributed vs interest earned, plus year-by-year breakdown.
Animated GIF Maker
Combine multiple images into an animated GIF. Adjustable frame delay, output width, looping, and quality. Encoded entirely in your browser.
SVG Optimizer & Minifier
Strip metadata, collapse whitespace, and round decimals to dramatically shrink SVG file size — typical reductions of 30-70%. Visual preview verifies nothing breaks.
Color Blindness Simulator
See how your design looks to people with color vision deficiencies. Simulates protanopia, deuteranopia, tritanopia, achromatopsia, and milder anomalies.
XML Formatter & Validator
Pretty-print and validate XML using your browser's native DOM parser. Includes minified output for production use.
CSS Beautifier
Pretty-print minified CSS with consistent indentation. Optional alphabetical property sorting for predictable diffs.
HTML Beautifier & Minifier
Pretty-print or minify HTML with proper nesting indentation. Preserves content inside <pre>, <script>, <style> blocks.
Bionic Reading Converter
Convert any text to bionic reading format — the first letters of each word are bolded to help your eyes focus and read faster.
Duplicate Line Finder
Find, count, or remove duplicate lines from a list. Great for cleaning up email lists, audit logs, or finding repeat entries in data dumps.
Sales Tax / VAT / GST Calculator
Add tax to a pre-tax amount, or extract the tax from a tax-inclusive total. Presets for US, UK, EU, Canada, Australia, and more.
Discount & Sale Price Calculator
Calculate final sale price, percent off, or savings amount. Useful for shoppers and retailers planning promotions.
Fancy Text Generator
Turn plain text into stylish Unicode fonts — bold, italic, script, bubble, and more — for Instagram, TikTok, Discord, and bios. Click any style to copy.
Subnet / CIDR Calculator
Calculate network address, broadcast, usable host range, subnet mask, and host count from any IPv4 address and CIDR prefix.
chmod Permissions Calculator
Toggle Unix file permissions for owner, group, and other to get the octal value (755), symbolic notation (rwxr-xr-x), and the exact chmod command.
Readability Score Checker
Score your writing with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, and ARI. See the reading level instantly.
UTM Campaign Link Builder
Build trackable campaign URLs with UTM parameters for Google Analytics and other tools. Live preview, presets, and one-click copy.
Running Pace Calculator
Calculate pace, time, or distance for running, cycling, and walking. Metric and imperial, with finish-time predictions for 5K, 10K, half, and marathon.
Meta Tag & Open Graph Generator
Generate SEO meta tags, Open Graph, and Twitter Card markup with a live Google and social-share preview. Copy straight into your page head.
Random Team Generator
Split a list of names into balanced random teams — by team count or team size. Cryptographically fair shuffle, instant reshuffle.
CSS Cubic-Bezier Easing Generator
Design CSS easing curves by dragging control points, preview the motion live, and copy the cubic-bezier() value. Includes overshoot/bounce presets.
PDF to Image (JPG, PNG, WebP)
Convert every page of a PDF into JPG, PNG, or WebP images at your chosen resolution. Download pages individually or all at once as a ZIP. Files never leave your browser.
PDF Organizer — Reorder, Rotate & Delete Pages
Rearrange, rotate, and remove pages from a PDF, then export the result. Everything happens in your browser — your file is never uploaded.
Por que é gratuíto?
Os ficheiros permanecen no teu dispositivo
Sen límites artificiais. Sen inicio de sesión. Os teus ficheiros nunca saen do teu dispositivo.
Sen límites de tamaño de ficheiro
A IA fixo que a construción destas ferramentas sexa case gratuíta. Pasámosche eses aforros directamente.
Libre para sempre
Contamos con anuncios non intrusivos que non se interpoñen no teu camiño.
Ferramentas PDF
View all →Compresor de PDF
Comprime ficheiros PDF para reducir o seu tamaño. Sen perda de calidade, sen límite de tamaño de ficheiro.
Fusión de PDF
Combina varios ficheiros PDF nun só. Arrastra para reordenar as páxinas.
Imaxe a PDF
Converte imaxes a PDF. Reordena as páxinas, establece o tamaño e as marxes.
PDF Redactor
Black out sensitive text in a PDF for good. Pages are flattened to images so the hidden content is permanently destroyed — not just covered. Runs entirely in your browser.
PDF Compare
Compare two PDFs page by page — side by side, as an onion-skin overlay, or with changed areas highlighted in red. Both files stay in your browser.
PDF Form Filler
Fill in an interactive PDF form and optionally flatten it so the answers can't be edited. Runs entirely in your browser — the document is never uploaded.
Add Page Numbers to PDF
Add page numbers to a PDF — choose the format, position, starting number, and font size. Runs entirely in your browser; the PDF is never uploaded.
Watermark PDF
Stamp a text watermark across every page of a PDF — diagonal, horizontal, or tiled, with adjustable opacity and colour. Runs entirely in your browser.
PDF a Word
Converte ficheiros PDF en documentos editables de Word (.docx). Extraer texto e formato. Todo o procesamento ocorre no teu navegador.
Word a PDF
Converte documentos de Word (.docx) a PDF. Conserva o contido do texto. Sen límites de tamaño de ficheiro, sen cargas.
PDF Splitter
Split a PDF into individual pages or extract specific page ranges. Download pages separately or as a ZIP.
PDF to Image (JPG, PNG, WebP)
Convert every page of a PDF into JPG, PNG, or WebP images at your chosen resolution. Download pages individually or all at once as a ZIP. Files never leave your browser.
PDF Organizer — Reorder, Rotate & Delete Pages
Rearrange, rotate, and remove pages from a PDF, then export the result. Everything happens in your browser — your file is never uploaded.
Ferramentas de imaxe
View all →Compresor de imaxe
Comprime imaxes JPG, PNG, WebP e AVIF. Ver comparación antes/despois.
Conversor de formato de imaxe
Converte entre os formatos JPG, PNG, WebP, AVIF, GIF e BMP.
Redimensionador de imaxes
Cambia o tamaño das imaxes por dimensións ou porcentaxes. Mantén a relación de aspecto, escolla o formato de saída, sen perda de calidade.
HEIC to JPG Converter
Convert iPhone HEIC/HEIF photos to JPG, PNG, or WebP — one at a time or in bulk. Strips GPS metadata and runs entirely in your browser, so photos never upload.
Metadata Remover
Strip hidden metadata — EXIF/GPS location, author names, and edit history — from photos, PDFs, and Office documents. Lossless and 100% in your browser.
Image to Base64
Convert an image to a Base64 data URI for inline use in CSS, HTML, or Markdown. Copy ready-made snippets. Encoded in your browser; never uploaded.
Video Frame Grabber
Capture a still image from any frame of a video at full resolution. Scrub, step frame-by-frame, and save as PNG or JPG. Instant and entirely in your browser.
Meme Generator
Add classic top and bottom captions to any image in the iconic meme style. Live preview, download as PNG. Runs entirely in your browser — never uploaded.
Eliminador de fondo
Elimina os fondos de imaxes ao instante con AI. Obtén saídas PNG transparentes. Procesamento totalmente local: as túas imaxes nunca saen do teu dispositivo.
Aspect Ratio Calculator
Calculate the aspect ratio of any dimensions, or find the missing dimension from a known side and ratio. Includes 12 common presets.
PNG to ICO Favicon Converter
Convert PNG, JPG, WebP, or SVG images into multi-size .ico favicon files. Pick the sizes you want bundled (16, 32, 48, 64, 128, 256) and download a single .ico.
OCR — Image to Text Extractor
Extract text from images, screenshots, and scanned documents using the open-source Tesseract OCR engine. Supports 20 languages. Runs entirely in your browser.
QR Code Reader
Scan QR codes from uploaded images or live webcam. Decode URLs, Wi-Fi credentials, contact cards, phone numbers, and any other QR content.
Photo EXIF Metadata Viewer
View camera settings, GPS location, and EXIF metadata in your photos. One-click strip EXIF to download a privacy-safe version with metadata removed.
Image to ASCII Art Converter
Convert any image into ASCII art for chat, READMEs, terminals, or commit messages. Multiple character sets including block characters and emoji.
Image Color Palette Extractor
Extract the dominant colors from any image using k-means color quantization. Get hex codes for the top 2-16 colors in your photo or logo.
Image Cropper
Crop images with drag-to-select, optional aspect ratio constraints (1:1, 16:9, 4:3, etc.), rule-of-thirds grid, and multi-format export (JPEG, PNG, WebP).
Image Rotator & Flipper
Rotate images by 90°, 180°, 270°, or any custom angle. Flip horizontally or vertically. Export to JPEG, PNG, or WebP.
Animated GIF Maker
Combine multiple images into an animated GIF. Adjustable frame delay, output width, looping, and quality. Encoded entirely in your browser.
SVG Optimizer & Minifier
Strip metadata, collapse whitespace, and round decimals to dramatically shrink SVG file size — typical reductions of 30-70%. Visual preview verifies nothing breaks.
Placeholder Image Generator
Generate colored placeholder images with custom dimensions, text, and colors. Standard sizes for social media, mockups, and design comps.
Color Blindness Simulator
See how your design looks to people with color vision deficiencies. Simulates protanopia, deuteranopia, tritanopia, achromatopsia, and milder anomalies.
Favicon Generator
Turn any image into a complete favicon package: a multi-size favicon.ico, Apple touch icon, Android/PWA icons, a web manifest, and the ready-to-paste HTML snippet — all zipped, in your browser.
Ferramentas xeradoras
View all →Xerador de códigos QR
Xera códigos QR para URL, texto, WiFi e moito máis. Sen marca de auga.
Selector de cores e xerador de paletas
Escolle cores, converte entre HEX/RGB/HSL e xera paletas harmoniosas.
Xerador de contrasinais
Xera contrasinais seguros e aleatorios con lonxitudes, tipos de caracteres e exclusións personalizados. Sen límites, sen inicios de sesión.
Screen Recorder
Record your screen, a window, or a browser tab with system audio and microphone. No download, no account, no watermark — the recording never leaves your browser.
Mock Data Generator
Generate realistic fake test data — names, emails, addresses, dates, numbers — and export as JSON, CSV, SQL, or NDJSON. No row limits, no account, runs in your browser.
ICS Calendar Generator
Create .ics calendar invites for any app — Apple Calendar, Outlook, Google. Add multiple events, recurrence, and reminders. Runs entirely in your browser.
Mermaid Diagram Editor
Write flowcharts, sequence diagrams, Gantt charts, and more in Mermaid syntax with a live preview. Export as SVG or PNG. Runs entirely in your browser.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from text or files. Verify checksums and data integrity.
Coin Flip & Spin Wheel
Flip a virtual coin, spin a customizable wheel, or randomly pick from a list of options. Cryptographically fair.
CSS Gradient Generator
Create linear, radial, and conic CSS gradients with a live preview. Copy the CSS with one click.
Random Number Generator
Generate random numbers in any range, create unique number lists, or roll dice. Uses cryptographically secure randomness.
UUID Generator
Generate version 4 UUIDs instantly. Bulk generate up to 50 at once. Cryptographically secure — your data never leaves the browser.
Countdown Timer
Count down to any date and time. Set a custom date or use quick presets (5 min, 15 min, 1 hour). No sign-up needed.
Tip Calculator
Calculate how much to tip and split the bill between any number of people. Choose a tip percentage or enter a custom amount.
Age Calculator
Calculate your exact age in years, months, days, hours, and total days. Find your zodiac sign and days until your next birthday.
Percentage Calculator
Calculate percentages instantly: find X% of Y, what percentage X is of Y, and the percentage change between two values.
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes from any base color. Copy hex codes in one click.
BMI Calculator
Calculate your Body Mass Index in metric or imperial units. See your BMI category, healthy weight range, and where you fall on the scale.
Loan & Mortgage Calculator
Calculate monthly payments, total interest, and view a full amortization schedule for any loan or mortgage. Supports any term and interest rate.
Password Strength Checker
Check how strong your password is with entropy analysis, crack time estimates, and a detailed checklist of requirements. Runs entirely in your browser.
Pomodoro Timer
Stay focused with the Pomodoro technique. Customise work and break durations, track completed sessions, and hear an audio alert when each phase ends.
JWT Decoder
Decode and inspect any JSON Web Token. View header, payload, expiration, and standard claims. Everything runs locally in your browser — tokens never leave your device.
Online Stopwatch
Precision stopwatch with lap recording, fastest/slowest lap highlighting, and keyboard shortcuts. Counts up from zero with millisecond accuracy.
Date Difference Calculator
Calculate the exact difference between two dates — years, months, days, weeks, working days (excluding weekends), hours, and minutes.
CSS Box Shadow Generator
Visual builder for CSS box-shadow with live preview, multi-layer stacking, color picker, inset toggle, and one-click copy. Includes Material, neumorphism, and glow presets.
CSS Border Radius Generator
Visually design rounded corners with independent control over each corner. Supports the elliptical X/Y syntax for organic blob shapes.
Audio Spectrum Analyzer
Visualize audio frequencies in real time as bars, waveforms, or circular spectra. Works with audio files or live microphone input — runs in your browser.
Text to Speech
Convert text to natural-sounding speech using your browser's built-in voices. Adjustable rate, pitch, and volume — no API key, no upload, no cost.
Speech to Text Dictation
Live voice transcription using your browser's built-in speech recognition. Supports 30+ languages. Dictate notes, emails, or transcripts hands-free.
WCAG Color Contrast Checker
Check whether two colors meet WCAG AA and AAA contrast standards for accessibility. Live preview at multiple text sizes with automatic suggestions when contrast is too low.
Diceware Passphrase Generator
Generate memorable, high-entropy passphrases by combining random words. Configurable word count, separator, and capitalization — uses cryptographically secure randomness.
Cron Expression Builder
Build, validate, and explain cron expressions for scheduled tasks. Live plain-English description, next-5-runs preview, and common pattern presets.
Compound Interest Calculator
Project investment or savings growth with regular contributions. Shows total contributed vs interest earned, plus year-by-year breakdown.
Markdown Table Generator
Visually edit Markdown tables with per-column alignment. Import from CSV or TSV, copy GitHub-flavored Markdown output.
Email Obfuscator
Hide email addresses from spam scrapers using HTML entities, JavaScript assembly, reversed text, or symbol substitution.
HTTP Status Codes Reference
Searchable reference for all HTTP status codes — what each means, when it's used, and common causes. From 100 to 511.
Working Days Calculator
Count business days between dates or add/subtract business days from a date. Configurable weekend handling and holiday list.
Time Calculator
Add or subtract HH:MM:SS durations, or find the time between two timestamps. Useful for work logs, race splits, and project tracking.
Sales Tax / VAT / GST Calculator
Add tax to a pre-tax amount, or extract the tax from a tax-inclusive total. Presets for US, UK, EU, Canada, Australia, and more.
Discount & Sale Price Calculator
Calculate final sale price, percent off, or savings amount. Useful for shoppers and retailers planning promotions.
Subnet / CIDR Calculator
Calculate network address, broadcast, usable host range, subnet mask, and host count from any IPv4 address and CIDR prefix.
chmod Permissions Calculator
Toggle Unix file permissions for owner, group, and other to get the octal value (755), symbolic notation (rwxr-xr-x), and the exact chmod command.
UTM Campaign Link Builder
Build trackable campaign URLs with UTM parameters for Google Analytics and other tools. Live preview, presets, and one-click copy.
Running Pace Calculator
Calculate pace, time, or distance for running, cycling, and walking. Metric and imperial, with finish-time predictions for 5K, 10K, half, and marathon.
Meta Tag & Open Graph Generator
Generate SEO meta tags, Open Graph, and Twitter Card markup with a live Google and social-share preview. Copy straight into your page head.
Random Team Generator
Split a list of names into balanced random teams — by team count or team size. Cryptographically fair shuffle, instant reshuffle.
Online Tally Counter
A click counter that saves automatically in your browser. Add multiple counters with custom labels and steps. Count people, reps, laps, inventory, anything.
CSS Cubic-Bezier Easing Generator
Design CSS easing curves by dragging control points, preview the motion live, and copy the cubic-bezier() value. Includes overshoot/bounce presets.
GPA Calculator
Calculate your weighted GPA on the 4.0 scale from course grades and credit hours. Add courses, pick letter grades, and see your cumulative GPA update live.
Sleep Cycle Calculator
Find the best time to go to bed or wake up based on 90-minute sleep cycles, so you wake between cycles feeling refreshed instead of groggy.
Fuel Cost Calculator
Estimate the fuel cost of any trip from distance, vehicle efficiency, and fuel price. Supports mpg, L/100km, and km/L, plus round trips and cost splitting.
Ohm's Law Calculator
Enter any two of voltage, current, resistance, and power — the other two are solved instantly using Ohm's law (V=IR) and the power equation (P=VI).
Time Card Calculator
Add daily clock-in/out times and unpaid breaks to total your weekly work hours, with optional overtime past 40 hours and gross pay from your hourly rate.
CSS clamp() Generator
Generate a fluid CSS clamp() value for responsive typography and spacing. Set min/max size and viewport range, see a live preview, and copy the one-line CSS.
Calorie & TDEE Calculator
Estimate your BMR and daily calorie needs (TDEE) from age, weight, height, and activity using the Mifflin-St Jeor equation, with targets for losing, maintaining, and gaining.
Ferramentas de texto
View all →Contador de palabras
Conta palabras, caracteres, frases e parágrafos. Estimar o tempo de lectura.
Conversor de casos de texto
Converte o texto a MAIÚSCULAS, minúsculas, maiúsculas do título, maiúsculas camel, snake_case e moito máis.
Formateador JSON
Formatear, validar, minimizar e explorar datos JSON. Vista en árbore, resaltado de sintaxe e copia cun só clic.
UUID Inspector
Decode any UUID or ULID — see its version, variant, and the creation timestamp embedded in v1, v6, v7, and ULIDs. Runs entirely in your browser.
ASCII Tree Generator
Turn an indented list into a clean folder tree (├── └──) for READMEs and docs. Unicode or plain-ASCII output. Runs entirely in your browser.
Cron Expression Explainer
Translate any cron expression into plain English and see the next run times. Supports ranges, lists, steps, names, and @macros. Runs in your browser.
ENV File Validator
Lint a .env file for duplicate keys, bad spacing, and unquoted values — then get a cleaned, sorted version and a ready-to-commit .env.example. Runs in your browser.
Text Encryption
Encrypt and decrypt text with a password using strong AES-256-GCM. The password never leaves your browser. Share secrets safely.
JSON Diff
Compare two JSON objects structurally — see exactly which keys were added, removed, or changed, even deep inside nested data. Runs in your browser.
Compare Two Lists
Compare two lists to find items only in A, only in B, in both, or all combined and de-duplicated. Case and whitespace options. Runs in your browser.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text. Choose words, sentences, or paragraphs. Copy in one click.
Regex Tester
Test regular expressions against text in real time. See highlighted matches, groups, and match details.
Markdown Editor
Write and preview Markdown in real time. Supports headings, bold, italic, code blocks, tables, and lists.
Text Diff
Compare two blocks of text and see exactly what changed. Line-by-line diff with added, removed, and unchanged lines.
CSS Minifier & Beautifier
Minify CSS to reduce file size or beautify minified CSS for readability. Instant, in your browser.
Word Frequency Counter
Count how often each word appears in your text. Visualise top words, export to CSV, and filter stop words.
Text Sorter
Sort lines of text alphabetically, by length, numerically, or randomly. Remove duplicates, trim whitespace, and shuffle lists.
Slug Generator
Convert any title or text into a URL-friendly slug. Perfect for blog posts, CMS pages, and SEO-optimised URLs.
String Reverser
Reverse text character by character, reverse word order, flip each line, or reverse line order. Includes palindrome detection.
Character Counter
Count characters, words, sentences, letters, digits, and special characters. Check against Twitter, Instagram, and other platform limits.
Caesar Cipher & Text Encryptor
Encrypt and decrypt text with Caesar cipher, ROT13, Atbash, and Vigenère cipher. Classic substitution ciphers, all in your browser.
Text Repeater
Repeat any text or character a chosen number of times with a custom separator. Useful for generating test data, patterns, and placeholder content.
Reading Time Calculator
Estimate how long it takes to read any text. Choose a reading speed, get word count, sentence count, and speaking time estimates.
Whitespace Cleaner
Remove extra spaces, trim lines, collapse blank lines, and normalise line endings in any text. Clean up copy-pasted content in one click.
SQL Formatter & Beautifier
Pretty-print SQL queries with proper indentation, configurable keyword case, and line breaks on major clauses. Works with any SQL dialect.
XML Formatter & Validator
Pretty-print and validate XML using your browser's native DOM parser. Includes minified output for production use.
CSS Beautifier
Pretty-print minified CSS with consistent indentation. Optional alphabetical property sorting for predictable diffs.
HTML Beautifier & Minifier
Pretty-print or minify HTML with proper nesting indentation. Preserves content inside <pre>, <script>, <style> blocks.
Bionic Reading Converter
Convert any text to bionic reading format — the first letters of each word are bolded to help your eyes focus and read faster.
Duplicate Line Finder
Find, count, or remove duplicate lines from a list. Great for cleaning up email lists, audit logs, or finding repeat entries in data dumps.
Fancy Text Generator
Turn plain text into stylish Unicode fonts — bold, italic, script, bubble, and more — for Instagram, TikTok, Discord, and bios. Click any style to copy.
Readability Score Checker
Score your writing with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, and ARI. See the reading level instantly.
Typing Speed Test (WPM)
Measure your typing speed in words per minute and your accuracy by typing a sample passage. Live WPM, per-character highlighting, and a fresh passage each round.
Find and Replace Text
Search and replace text with plain or regex matching, a live match count, and a highlighted preview. Supports case-insensitivity, whole-word, and regex capture-group backreferences.
Ferramentas de conversión
View all →Convertidor de unidades
Converte entre unidades de lonxitude, peso, temperatura, área, volume e moito máis.
Codificador e decodificador de URL
Codificar e decodificar URL e cadeas de consulta. Admite encodeURIComponent, decodeURIComponent e análise de cadeas de consulta.
Compresor de video
Comprimir ficheiros de vídeo para reducir o seu tamaño. Escolla calidade, resolución e formato de saída. Todo o procesamento é local.
Video to GIF
Turn an MP4, WebM, or MOV clip into a high-quality animated GIF. Pick the clip range, frame rate, and width. Runs entirely in your browser.
Audio Extractor
Extract the audio track from any video as MP3, M4A, AAC, or lossless WAV. No upload — everything is processed locally in your browser.
Video Trimmer
Cut a clip from any video by dragging start and end handles. Fast lossless trimming or frame-precise mode. Runs entirely in your browser.
Video Converter
Convert video between MP4, WebM, MOV, MKV, and AVI. Great for making WebM play on iPhones or turning MOV into MP4. No upload — runs in your browser.
Audio Converter
Convert audio between MP3, WAV, FLAC, OGG, AAC, and M4A with bitrate control. Perfect for M4A to MP3. Everything is processed locally in your browser.
Audio Trimmer
Cut a clip from any audio file on an interactive waveform. Drag handles, preview the selection, add fades. Great for ringtones and podcast clips. Runs in your browser.
cURL to Code Converter
Paste a cURL command and get equivalent code in JavaScript (fetch), Node.js, Python (requests), or Go. Parsed entirely in your browser — tokens never leave your device.
Excel / XLSX Viewer
Open and view .xlsx, .xls, .csv, and .ods spreadsheets without Excel or Google Sheets. Switch sheets and export to CSV or JSON. Runs entirely in your browser.
ZIP Extractor
Open a .zip archive, preview files inside, and extract any of them — all in your browser. No upload, no app install, no size limit.
Subtitle Converter
Convert subtitles between SRT, WebVTT, SBV, LRC, and ASS while preserving timing. Input format is auto-detected. Runs entirely in your browser.
EML Email Viewer
Open .eml email files to read the headers and body and download attachments — without an email client. Parsed locally; nothing is uploaded.
Audio Joiner
Merge multiple audio files into one, in any order, with optional crossfade. Export as MP3, M4A, or WAV. Runs entirely in your browser — no upload.
JSON to Excel
Convert a JSON array of objects into an Excel (XLSX) or CSV spreadsheet. Nested objects become dotted columns. Runs entirely in your browser — no upload.
JSON to XML Converter
Convert JSON to XML and XML to JSON, both directions, with attributes and arrays preserved. Runs entirely in your browser — nothing is uploaded.
File Hash / Checksum
Compute SHA-256, SHA-1, SHA-384, and SHA-512 checksums of any file and verify a download against its published hash. The file is never uploaded.
CSV to JSON
Convert CSV (or TSV) into JSON — array of objects or arrays — with a proper RFC 4180 parser, delimiter auto-detection, and type conversion. Runs in your browser.
GIF to MP4
Convert an animated GIF to MP4 or WebM video — far smaller files that play inline on social media. Runs entirely in your browser, no upload.
Remove Audio from Video
Mute a video by removing its audio track — instant and lossless, the picture is untouched. Runs entirely in your browser, no upload.
Video Speed Changer
Speed up or slow down a video from 0.25× to 4×, with pitch-corrected audio. Great for slow-motion and timelapse. Runs entirely in your browser.
Audio Speed Changer
Speed up or slow down audio with the pitch preserved (great for podcasts) or shifted. Export as MP3. Runs entirely in your browser, no upload.
Hex Viewer
Inspect the raw bytes of any file in a classic offset / hex / ASCII dump, with magic-number file-type detection. Read locally; never uploaded.
Subtitle Shifter / Resync
Fix out-of-sync subtitles — shift all timings earlier or later and correct frame-rate mismatches. Keeps the original format. Runs in your browser.
Rotate Video
Rotate or flip a video to fix footage shot sideways or upside down. 90°, 180°, and mirror options with a live preview. Runs entirely in your browser.
Reverse Audio
Play an audio file backwards. Useful for music production and checking for hidden reversed messages. Runs entirely in your browser, no upload.
Audio to Video
Turn an audio file plus a cover image into an MP4 — the standard way to upload a song, mix, or podcast to YouTube. Runs entirely in your browser.
Base64 Encoder & Decoder
Encode text or files to Base64, or decode Base64 strings back to plain text. Instant, private, and free.
Timestamp Converter
Convert Unix timestamps to readable dates and vice versa. Supports UTC and local time, seconds and milliseconds.
HTML Encoder & Decoder
Encode special characters to HTML entities or decode entities back to plain text. Instantly, in your browser.
Color Converter
Convert colors between HEX, RGB, HSL, HSV, and CMYK formats instantly. Includes a lightness scale and preset swatches.
Morse Code Translator
Convert text to Morse code and back. Listen to the audio playback of your message in real time.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. See bit-size fit and grouped binary output instantly.
Roman Numeral Converter
Convert numbers to Roman numerals and back. Supports 1–3999 with full subtractive notation.
Binary to Text Converter
Convert text to binary (0s and 1s) and back. Supports UTF-8 encoding. See the byte and bit count for any text.
JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON. Handles nested values, quoted fields, and commas in values automatically.
Time Zone Converter
Convert times between any of 20 world time zones simultaneously. Use live current time or enter a custom date and time to compare.
Number to Words Converter
Convert any number to written English words. Supports cardinal numbers, ordinal numbers, and currency amounts in USD, GBP, and EUR.
Pixel to REM Converter
Convert between px, rem, em, pt, vw, vh, and % with a configurable base font size. Includes a reference table for common pixel sizes.
JSON to TypeScript Converter
Generate TypeScript interfaces or type aliases from any JSON object or array. Paste your JSON and get ready-to-use TypeScript types instantly.
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in both directions. Paste in either format and get the converted output instantly — no server upload required.
HTML to Markdown Converter
Convert HTML to clean Markdown. Handles headings, lists, links, images, code blocks, tables, and blockquotes. Perfect for moving content out of CMSes.
Markdown to HTML Converter
Convert Markdown to clean HTML with live preview. Use the source view to copy ready-to-paste HTML for blogs, CMSes, or email templates.
CSV Viewer & Table Renderer
Paste or upload CSV/TSV and render it as a sortable, searchable table. Auto-detects delimiters. Inspect data dumps without opening Excel.
NATO Phonetic Alphabet Converter
Convert letters and numbers to the NATO (ICAO) spelling alphabet — Alpha, Bravo, Charlie. Also includes LAPD and WWII alphabets.
Resistor Color Code Calculator
Decode 4, 5, and 6-band resistors into resistance, tolerance, and temperature coefficient. Pick band colors and read the value instantly with a visual resistor.
Cooking Measurement Converter
Convert cooking measurements between cups, grams, ounces, tablespoons, and millilitres using real ingredient densities, plus oven temperature in °F, °C, and gas marks.