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TSV to CSV Converter

Paste TSV data and convert it to CSV with your choice of output delimiter. Fields containing the delimiter are automatically quoted.

Last updated: May 21, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

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What is TSV to CSV Converter?

TSV uses tab characters to separate fields, while CSV uses commas (or sometimes semicolons or pipes). Both are plain-text tabular formats, and many tools only accept one or the other. Converting TSV to CSV is straightforward — replace tabs with commas — but fields that contain commas need to be wrapped in double quotes to remain valid.

This converter handles that quoting automatically. Paste TSV (or copy directly from a spreadsheet), choose your output delimiter, and get correctly formatted CSV with proper quoting wherever needed.

How to Use TSV to CSV Converter

1

Paste TSV data or copy cells from a spreadsheet and paste here

2

Choose the output delimiter: Comma, Semicolon, or Pipe

3

Copy the CSV output or download it as a .csv file

Common Use Cases

  • Analysts converting TSV exports from databases or BI tools to CSV for Excel or Google Sheets.
  • Developers converting tab-delimited log files to CSV for processing with standard CSV parsers.
  • Data engineers converting TSV pipeline outputs to CSV for downstream tools that expect commas.
  • Teams converting spreadsheet clipboard data (TSV) to CSV files for upload to web applications.
  • Developers standardising multiple data file formats to a single CSV format for batch processing.

Example Input and Output

TSV data with a field containing a comma is converted to CSV with the comma-containing field automatically quoted.

TSV input
name	city	role
Alice	New York, NY	Engineer
Bob	Los Angeles, CA	Designer
CSV output
name,city,role
Alice,"New York, NY",Engineer
Bob,"Los Angeles, CA",Designer

Privacy

All conversion runs in your browser. No data is uploaded to any server.

Tip: opening CSV in Excel

If Excel opens your CSV as a single column, the delimiter doesn't match your regional settings. Try the semicolon delimiter, or use Excel's Data → Text to Columns wizard to specify the delimiter manually.

Frequently Asked Questions

Why are some fields wrapped in double quotes in the output?
Fields that contain the output delimiter (e.g. a comma in comma-separated output) are automatically wrapped in double quotes so the CSV parser knows the delimiter inside is part of the value, not a column separator.
Can I paste directly from Excel or Google Sheets?
Yes. Copying cells from a spreadsheet puts tab-separated values on the clipboard. Paste directly into the input and the converter will process the tabs correctly.
When should I use semicolons instead of commas?
European locales use semicolons as the CSV delimiter because commas are used as decimal separators in numbers (e.g. 1.234,56). If your data will be opened in Excel on a system with a European locale, use semicolons.
Is my data sent to a server?
No. All conversion runs in your browser. Your data never leaves your device.

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