CSV Formatter
Clean up CSV formatting and convert between delimiters.
Processed locally in your browser. Your data is never uploaded.
- Convert between comma, semicolon, tab and pipe delimiters in one step.
- Normalises quoting and trims stray whitespace so the file imports cleanly.
- Runs in your browser — no upload.
Why this is private
- Processed locally in your browser. Your data is never uploaded.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Cleans up CSV data and converts between delimiters (comma, semicolon, tab, pipe) — useful for fixing inconsistent exports or converting TSV to CSV.
How to use it
- 1Paste CSV or TSV data.
- 2Choose the input and output delimiters.
- 3Copy or download the result.
Frequently asked questions
What people use it for
Fix a semicolon CSV from a European exportConvert `;`-separated data to standard commas so other tools accept it.
Turn a TSV or spreadsheet paste into CSVData copied from a sheet is tab-separated — convert it to CSV.
Make an export import-readyStandardise quoting and delimiters before loading into a database or CRM.
Prepare data for the CSV to JSON toolClean the delimiters first, then convert.
Related tools
All data toolsReady to use CSV Formatter?
CSV Formatter