Free TSV to CSV Converter
Convert tab-separated values back to a standard comma-separated CSV file.
Drop your TSV file here
or click to browse
How to convert
- 1
Upload your TSV file by dragging it onto the drop zone, or paste your tab-separated data into the text area.
- 2
Click the Convert button to generate CSV output.
- 3
The comma-separated result appears in the output area.
- 4
Copy the result to your clipboard or click Download to save the .csv file.
Features
- 100% private — data never leaves your browser
- No file uploads to any server
- No signup or account required
- Free with no usage limits
- Proper comma-escaping for fields containing commas
- Preserves original data encoding
- Full UTF-8 and special character support
- Works on any device with a modern browser
What is TSV to CSV conversion?
TSV (Tab-Separated Values) files use tab characters (\t) as column delimiters instead of commas — a format common in bioinformatics exports, linguistics corpora, and Unix command-line output. Converting TSV to CSV replaces each tab with a comma and wraps any field that itself contains a comma, quote, or newline in double quotes, producing a standard RFC 4180 CSV file that works with every spreadsheet app, database import tool, and data pipeline that expects comma-separated input rather than tab-separated.
When to convert?
Convert TSV to CSV when you need to import tab-delimited data (a bioinformatics export, a database dump, a scraped dataset) into tools that specifically require CSV, when sharing data with colleagues or clients who expect comma-separated format, when uploading to a SaaS product whose bulk-import feature only accepts .csv, or when preparing tab-delimited data for a database import that expects comma-separated fields.
Frequently asked questions
Is my data safe when converting TSV to CSV?
Yes. The conversion runs entirely in your browser. Your data is never uploaded to any server.
What if my TSV data contains commas?
Commas within data fields are handled correctly. The CSV output wraps such fields in quotes to preserve data integrity.
Does it preserve the original encoding?
Yes. The converter supports UTF-8 encoding and preserves special characters, accented characters, and emoji.
Can I convert large TSV files?
Yes. Since processing happens in your browser, there are no server-imposed limits. Very large files may take a moment depending on your device.
What happens to fields that already contain commas?
Any field containing a comma, double quote, or newline is automatically wrapped in double quotes in the CSV output, following the standard CSV escaping rules, so the value round-trips correctly when reopened.
Will the resulting CSV open correctly in Excel and Google Sheets?
Yes. The output follows the standard comma-separated, double-quote-escaped CSV format that both Excel and Google Sheets import natively.
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