CSV Row & Column Counter — Free & Private

A free edge API by formatho.com, privacy-first developer tools.

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Free, no signup, runs entirely in your browser — your data never leaves your device.

🔓 Free🔒 Zero tracking🚫 No data collection⚡ Edge-fast

Usage — count rows & columns

curl -X POST "https://csv-counter-formatho.filesformatho.workers.dev/api?header=true" \
  -H 'Content-Type: text/csv' --data-binary @data.csv

Or pass the CSV inline: curl "https://csv-counter-formatho.filesformatho.workers.dev/api?header=true&csv=name%2Cage%0AAlice%2C30". Returns data-row count, total rows, column count, names, and per-column filled/empty/distinct stats. Delimiter (comma, semicolon, tab, pipe) is auto-detected; quoted fields per RFC 4180 are handled correctly.

Full parameter reference: /api endpoint.

Privacy-first: counting runs in-memory at the edge and is never logged or stored.

Full browser tool

Count entirely client-side: CSV Counter on formatho.com.

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