Kostenlos 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.
Dateien hier ablegen oder klicken zum Durchsuchen
JPG, PNG, WebP, BMP keine dateigrößenbeschränkung
Deine Dateien verlassen nie dein Gerät. Die Verarbeitung findet lokal in deinem Browser statt.
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So funktioniert es
OCR (Optical Character Recognition) here uses the open-source Tesseract engine — the same engine Google has maintained for decades — compiled to WebAssembly so it runs natively in your browser.
- 1The OCR engine downloads as WebAssemblyOn first use, Tesseract.js loads as a WebAssembly module (~3 MB). It runs inside your browser like native code, with no plugins or extensions needed.
- 2A language model downloads for your chosen languageEach language has its own trained model (~5-15 MB each, depending on script complexity). You pick the language; only that language's data downloads. Your browser caches it for future use.
- 3You select or paste an imageThe image is read into your browser's memory. Tesseract analyzes the pixel data to identify character shapes — no upload, no API call.
- 4Text is extracted with a confidence scoreFor each detected word, Tesseract assigns a confidence percentage. High contrast and clean fonts give 95%+ confidence; messy handwriting or low resolution drops it.
Your images stay on your device — not even temporarily uploaded for processing. Safe for ID documents, contracts, medical paperwork, or any text with sensitive content.
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