TSV to CSV Converter
Convert tab-separated values (TSV) to comma-separated CSV in your browser. Pick the output delimiter, choose minimal or always quoting, RFC-4180 compliant. 100% client-side, no upload.
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What is TSV to CSV Converter?
The TSV to CSV Converter transforms tab-separated values into comma-separated values (or any other delimiter you choose) directly in your browser. It follows RFC-4180 quoting rules, so fields containing the delimiter, double quotes, or newlines are handled correctly. The conversion runs entirely client-side — nothing is uploaded to any server.
Key Benefits
- Private and secure: all processing happens locally on your device
- RFC-4180-compliant parsing and quoting for maximum compatibility
- Flexible output delimiter: comma, semicolon, pipe, tab, or custom
- No installation or sign-up — works in any modern browser
- Instant results with live preview and one-click download
Common Use Cases
- •Converting database or spreadsheet exports from TSV to CSV format
- •Preparing data for import into tools that only accept comma-separated values
- •Switching to a semicolon delimiter for European locales that use a comma as a decimal separator
- •Cleaning up inconsistent quoting in TSV files before further processing
- •Reformatting log files or CLI output into structured CSV for analysis
How to Use TSV to CSV Converter
- Paste or upload TSV: Paste tab-separated data into the editor, drag-drop a .tsv or .txt file, or click Upload. Click Sample to try example data.
- Choose output delimiter: Pick comma, semicolon, pipe, tab, or enable Custom and type any single character.
- Pick quoting mode: Choose Minimal (quote only fields that contain delimiters, quotes, or newlines) or Always (quote every field).
- Copy or download: Preview the converted CSV, then click Copy to clipboard or Download CSV to save a UTF-8 file with CRLF line endings.
Key Features
- Drag-drop or upload a .tsv / .txt file, or paste tab-separated data directly.
- Choose comma, semicolon, pipe, tab, or a custom single-character output delimiter.
- Minimal or always quoting modes for maximum compatibility with strict parsers.
- RFC-4180-aware parser handles embedded tabs, embedded newlines, and escaped quotes.
- 100% client-side conversion — no upload, no API key, works offline.