Digital Toolchest

TSV to CSV Converter

Paste your TSV data and get clean, properly quoted CSV in one click. Fields containing commas, quotes, or newlines are handled automatically — no manual cleanup needed.

TSV data

Paste tab-separated values below, one record per line.

Everything runs locally in your browser — nothing is uploaded.

CSV outputComma-separated values with proper quoting applied.

0 lines in0 lines outN/A runtime

Most files convert in under 10ms in modern browsers.

How to convert TSV to CSV

Convert in 3 steps

Takes ~5 seconds
  1. 1
    Paste TSV data

    Copy your tab-separated data from a spreadsheet, editor, or file and paste it into the input box.

  2. 2
    Click Convert

    Hit "Convert to CSV" and the tool splits each line on tabs, rejoins fields with commas, and applies quoting where needed.

  3. 3
    Copy the CSV output

    Copy the result and paste it into Excel, a database import dialog, or save it as a .csv file.

Fields that contain commas, double quotes, or newlines are automatically quoted so your CSV stays valid.

Who should use this tool?

  • Data analysts exporting spreadsheet tabs into CSV for import tools or databases
  • Developers transforming API or log output that uses tab delimiters into standard CSV
  • Anyone copying data from a text editor or terminal that produces tab-separated output

Examples

Simple three-column TSV with a header row.

Input
Name	Age	City
Alice	30	Boston
Bob	25	Denver
Output
Name,Age,City
Alice,30,Boston
Bob,25,Denver

Field containing a comma gets wrapped in double quotes.

Input
Product	Price
Widget	1,200
Gadget	999
Output
Product,Price
Widget,"1,200"
Gadget,999

Field containing a double quote — quote is doubled and field is wrapped.

Input
ID	Note
1	She said "hello"
2	All clear
Output
ID,Note
1,"She said ""hello"""
2,All clear

TSV to CSV — fast, standards-compliant conversion

TSV and CSV are both plain-text table formats, but many tools only accept CSV. This converter bridges the gap by replacing tab delimiters with commas and applying correct quoting so the output is valid wherever CSV is expected.

This TSV to CSV converter transforms tab-separated values into properly formatted comma-separated values following RFC 4180 rules. Fields containing commas, double quotes, or embedded newlines are automatically quoted and escaped. Use it to prepare data exports from spreadsheets, databases, or text pipelines for import into tools that require CSV. Everything runs in your browser with no data uploaded to any server.

Proper CSV quoting

Fields with commas, double quotes, or newlines are automatically wrapped and escaped.

  • RFC 4180 compliant output
  • Double-quote escaping
  • Embedded newline support
Handles any TSV

Works with headers or no headers, ragged rows, and trailing tabs.

  • Ragged row support
  • Empty field preservation
  • No header requirement
Private by default

All conversion happens in your browser. Your data never leaves your device.

  • No server upload
  • Works offline
  • No signup needed
Privacy first: we never send your input to a server. Everything runs locally in your browser.

Conversion tips

A few habits help ensure clean, importable CSV every time.

  • Check for stray spaces around tab characters before pasting — they become part of the field value in CSV.
  • Validate the output row count matches your input row count to catch any ragged-row surprises.
  • If your TSV contains real newlines inside fields, paste it directly rather than retyping to preserve the embedded line breaks.

Frequently asked questions

Why do some fields appear wrapped in double quotes in my CSV output?>
RFC 4180 requires that any field containing a comma, double quote, or newline be wrapped in double quotes so CSV parsers can tell the delimiter from actual data. The converter applies this automatically.
Can I convert a TSV file that has no header row?>
Yes. The tool treats every row identically — it does not require or assume a header. All rows are converted field-by-field the same way.
What happens if my rows have different numbers of columns (ragged input)?>
Each row is converted independently, so shorter or longer rows are still processed correctly. The output will have the same number of fields per row as the input — no padding or truncation is applied.
How do I convert the CSV output back to TSV if I make a mistake?>
Use the CSV to TSV converter on this site — it reverses the process, removing CSV quoting and replacing comma delimiters with tabs.

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