Free CSV to TSV Converter

🟢 Runs Locally — verified: your files are processed in this browser. No uploads.

Convert comma-separated data to tab-delimited TSV — quote-aware and lossless.

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Runs entirely in your browser — paste text and watch the results update instantly. Nothing is uploaded.

100% Client-Side — Your text stays in your browser. Nothing is uploaded.

How to use this tool

  1. 1

    Paste CSV data

    Spreadsheet exports or comma-delimited feeds.

  2. 2

    Delimiters swap

    Commas become tabs; fields containing tabs or quotes are quoted automatically.

  3. 3

    Copy the TSV

    Perfect for tools that prefer tab-delimited input.

Key features

CSVTSV
a,b\nc,da\tb\nc\td
"x,y",zComma field stays whole with quotes
Quoted commasPreserved inside quoted fields
Malformed inputInline error — no crash

Privacy: your text never leaves your browser

Every Toolflect Text Tool is 100% client-side. The moment you type or paste text, it is analyzed by JavaScript running inside this browser tab. Your text is never sent to our servers, never stored in a database, and never shared with any third party or AI service. Visit counting (see the note at the foot of this page) is separate from your text and never receives it.

  • No uploads, no accounts, no sign-up
  • Your text is processed locally in your browser and never stored.
  • Works offline once the page has loaded
  • Close the tab and your text is gone from memory

You can even verify it yourself: open your browser's developer tools, switch to the Network tab, and type into the tool — no request ever carries your text. You will also see the Google Analytics request that counts the visit; it carries a page view and never anything you typed, and no cookie or identifier is stored until you accept analytics.

Frequently asked questions

Why convert CSV to TSV?
Command-line tools, databases and some editors handle tab-delimited data more safely than comma data.
Are commas inside quoted fields preserved?
Yes — they belong to the field and survive the delimiter swap.
Is this lossless?
Yes — parsing and re-serializing preserves every field's content exactly.
Private?
Fully — conversion runs locally in your tab.

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