CSV fixer — clean up a messy CSV

Fix the CSV problems that break imports: the wrong delimiter, broken encoding, stray quotes and columns that don't line up. Re-parse your file and export a clean CSV, Excel or JSON — all in your browser, with file contents staying in Local Mode.

Fix a CSV → Convert & merge →

Free · 16 formats · Merge files · Local Mode

Common CSV problems it solves

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Delimiters & quoting

Comma, semicolon, tab or pipe — auto-detected and re-emitted consistently, with correct quoting for fields that contain separators.

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Encoding

Garbled accents and symbols are read correctly and re-saved as clean UTF-8.

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Convert & merge

Turn the fixed data into Excel, JSON, XML or SQL, or merge several files into one table.

How to fix a CSV

1

Paste or drop the file

Add the messy CSV (or paste the text) into the table converter.

2

Check the preview

The columns realign in the live preview; set the delimiter and header options you want.

3

Export clean

Download a tidy CSV — or Excel/JSON — ready to import.

Open the table converter →

FAQ

What CSV problems can it fix?

Wrong or mixed delimiters (comma, semicolon, tab, pipe), broken encodings, inconsistent quoting, and columns that don't line up. It re-parses the data and lets you re-export cleanly.

Can it convert CSV to Excel or JSON?

Yes. Output to Excel, CSV, TSV, JSON, JSONL, YAML, XML, Markdown, HTML or SQL, and choose the delimiter and header options.

Can I merge several CSVs?

Yes — drop in multiple files and merge them into a single table, optionally adding a source column.

Is my file uploaded?

No. All parsing and conversion happen in your browser; your file never leaves your device.