CSV to TSV Converter

Convert CSV to TSV in your browser. Correctly re-quotes fields containing tabs or newlines. Paste straight into Excel or Sheets. Free.

CSV inputpaste, type, or drop a file
TSV output
Runs 100% in your browser. Nothing is uploaded, logged, or stored, and there are no ads. Verify it yourself: open your browser's Network tab while you convert and watch that no requests leave this page.

About this tool

Convert comma-separated files to tab-separated ones. This is a real parse-and-reserialize, not a find-and-replace: fields that contain commas, quotes, tabs, or newlines are re-quoted correctly for the new delimiter.

TSV pastes directly into Excel and Google Sheets cells, which makes this the quickest route from a CSV file to a spreadsheet without an import dialog.

Common uses

  • Paste CSV data into a spreadsheet as cells (via TSV clipboard format).
  • Feed tab-delimited input to command-line tools like cut and awk.
  • Prepare files for systems that require tab delimiters.

Automate via API

The same conversion is available as a REST endpoint for scripts, pipelines, and backends:

curl -X POST https://payloadly.com/api/v1/tools/csv-to-tsv \
  -H "Content-Type: text/plain" \
  -H "X-Api-Key: YOUR_API_KEY" \
  --data-binary @input.csv

API documentation · Get an API key

CSV notes

CSV (comma-separated values) is the lingua franca of spreadsheets, analytics exports, and bulk imports. It is tabular and flat: every row shares one set of columns, so nested structures must be flattened.

  • Fields containing commas, quotes, or newlines must be quoted per RFC 4180.
  • CSV has no type system; numbers and booleans are inferred on import.
  • Nested objects are flattened to dot-notation columns (e.g. `user.name`).

TSV notes

TSV (tab-separated values) is CSV's tab-delimited sibling, common in bioinformatics, data warehouses, and clipboard exchange with spreadsheets. Tabs rarely appear inside real data, which makes TSV simpler to parse.

  • Literal tab characters inside a field must be quoted.
  • Excel and Google Sheets paste copied cells as TSV, which makes it ideal for clipboard workflows.

Frequently asked questions

Is my data uploaded to a server?

No. This tool runs entirely in your browser using JavaScript, and there are no ads on the page. Nothing you paste or drop here is uploaded, logged, or stored, and you can verify that yourself: open your browser's developer tools and watch the Network tab while you convert (no requests leave the page), or disconnect from the internet after the page loads and keep working.

What should I watch out for when converting CSV to TSV?

Fields containing commas, quotes, or newlines must be quoted per RFC 4180. CSV has no type system; numbers and booleans are inferred on import. Literal tab characters inside a field must be quoted. Excel and Google Sheets paste copied cells as TSV, which makes it ideal for clipboard workflows.

Is there a size limit or a fee?

The browser tool is free with no signup and comfortably handles files up to tens of megabytes (limited by your device's memory). For automated or bulk processing inside your own scripts and pipelines, use the paid REST API.

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