Convert TSV to CSV

Convert TSV to CSV online: paste your data or drop a file and get comma-separated rows that every spreadsheet and database can import instantly. Everything runs in your browser.

Your file never leaves your device.

How to convert TSV to CSV

Developers, analysts and marketers move data between TSV and CSV constantly. This converter parses the TSV with a strict, standards-compliant parser and produces comma-separated rows that every spreadsheet and database can import. You can paste text straight from your editor or clipboard, preview the result and download it, without sending your data to a server.

Step 1: Choose your TSV file
Drop a .tsv, .tab file onto the converter, pick it from your device, or paste the TSV text directly.
Step 2: Check the preview
The CSV output appears immediately so you can verify it before saving.
Step 3: Download the CSV
Save each result individually, or download everything as a single ZIP when you convert several files.

Good to know

The first row is treated as the header row. The delimiter is detected automatically, including semicolons used by European Excel exports.
Invalid input is reported with a clear error instead of producing a broken file.

Why use this TSV to CSV converter?

Paste text or upload a file, whichever is faster.
Strict parsing with clear error messages.
Standards-compliant CSV output with correct escaping.
Private by design: data never leaves your browser.

Is it free?

Yes. Converting TSV to CSV is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device.

Is my file uploaded?

The TSV file is processed entirely in your browser. It is never uploaded, never stored and never seen by anyone, so this is safe for confidential files.

About the formats

What is TSV?

TSV (tab-separated values) is a plain-text format for tables: each line is a row and each field is separated by a tab character. Because commas inside the data need no quoting, TSV is often simpler to parse than CSV. Spreadsheets, databases and command-line tools read it without trouble.

Use TSV when your data contains many commas, such as addresses, descriptions or numbers with decimal commas, or when pasting between spreadsheets, which copy cells as tab-separated text. If the receiving system expects CSV, stick to CSV.

TSV (Tab-Separated Values)

What is CSV?

CSV (comma-separated values) is a plain-text format that stores tabular data, one row per line and fields separated by commas. It needs no special software: any text editor, spreadsheet application or database can read it. Because of its simplicity, CSV is the universal interchange format between databases, spreadsheets and other programs.

Use CSV whenever you need to move tabular data between systems, exporting a database, importing contacts or sharing a table with someone who uses different software. Choose CSV when plain, predictable data matters more than formatting.

CSV (Comma-Separated Values)

Frequently Asked Questions

Is TSV to CSV conversion free?

Yes. It is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device.

Is there a size limit for TSV to CSV?

Local conversions have no fixed file-size cap; the practical limit is your device's available memory. Because everything runs locally, speed depends on your device.

Is it safe to convert tsv to csv here?

Yes. The work happens on your own device with WebAssembly and browser APIs, so the file is not uploaded at all. You can even disconnect from the internet once the page has loaded.

Do I need to install anything?

No. Everything runs in a modern browser (Chrome, Edge, Firefox or Safari) on Windows, macOS, Linux, Android and iOS. There is no app, plugin or account.

Can I convert CSV back to TSV?

Yes, there is a dedicated CSV to TSV converter linked in the related tools below. Keep in mind that information dropped in one direction cannot always be restored in the other.

Need the opposite? Convert CSV to TSV

DataProcessed locally