Convert TSV (Tab-Separated) to JSON

Parse tab-separated data copied from a spreadsheet.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Drop a CSV file (or paste below)

CSV, TSV, TXT dim cyfyngiad maint ffeil

Pori ffeiliau

CSV

JSON

—

First row is a headerConvert numbers & booleans

Delimiter

💡 A proper RFC 4180 parser — handles quoted fields, commas and line breaks inside quotes, and escaped quotes. With "first row is a header" on, you get an array of objects; off, an array of arrays. Everything runs in your browser.

TSV tips

↹

Data copied straight from Excel or Sheets is usually tab-separated — set the delimiter to Tab.

🔄

Auto-detect often picks the right delimiter, but you can force Tab if needed.

🧱

Great for quickly turning a pasted selection into structured JSON.

🔒

Nothing leaves your device.

Sut Mae'n Gweithio

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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🔌

Convert CSV to JSON for an API

Turn a spreadsheet export into JSON your code or A

📑

Convert Messy CSV with Quotes and Commas

Parse CSV that has commas, quotes, or line breaks

📥

Prepare CSV Data for Import

Convert a CSV into JSON to seed a database or load

💻

Quickly Inspect CSV as JSON

See CSV rows as structured JSON objects while deve

Cwestiynau Cyffredin

Back to CSV to JSON