Paste or upload CSV, auto-repair errors, and browse rows in a paginated sortable table. Handles large files — fast, private, and free.
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Quick answers to common questions
Yes. Click Upload CSV to load a .csv file from your device. Files up to 50 MB are supported via background worker parsing.
Yes. Click Diagnose to list issues by row, then Try Auto Repair to fix unclosed quotes, column mismatches, and line-ending problems at the error location only.
Click any column header to sort ascending; click again for descending. Sort applies to the current preview page.
No. All parsing, repair, and display happens in your browser.
Standard comma-separated values with double-quoted fields, including multiline fields inside quotes.
Files over 512 KB parse in a Web Worker with progress feedback. The table preview shows 500 rows per page; full data stays in the editor and download.
Yes. The first row is treated as column headers.
Yes, completely free with no signup.
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