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CSV First Aid

Free to use

No sign-up, no upload, no row limit. Drop a file, get a fix.

Files never leave your browser14 auto-fixes built inHandles 200K+ rows
$0
  • No row limit per file
  • All 14 auto-fixes
  • Export to CSV, Excel, or JSON
  • Unlimited downloads
  • No account required
  • Runs entirely in the browser
  • Your data stays on your device
Fix your CSV now

FAQ

Is this really free?

Yes. No sign-up, no feature gates, no paywall at the moment. If we bring paid plans back later, they won't touch what's free today.

Is my data safe?

The file never leaves your browser tab — processing happens locally in JavaScript + WASM. Want to verify? Open DevTools → Network, drop a file, watch it process with zero outbound requests.

Are there any limits?

No row limit. Files up to about 100 MB work fine. Above that it depends on how much RAM your browser has.

What file formats are supported?

You can drop in .csv, .tsv, or .txt. You can download as CSV, Excel (.xlsx), or JSON.