Merge TSV Files Online - Combine Tab-Delimited Files

Free online TSV merger - combine tab-delimited files

Convert directly in your browser, with no upload waiting time, and no risk of data leaks.

Simply choose your TSV files and the tool will merge them into one TSV file for you!

Choose TSV Files to Merge

TSV Files:
(Max 10 files, 100M total.)
(More than 10 files? Big than 100M total?)

or drag & drop TSV files here

Click here to get merged TSV file

How to Merge TSV (3 Steps)

Choose your TSV files. Select two or more tab-delimited .tsv files.
Merge. The first header row is kept and the rows of every file are appended.
Download the merged TSV. Open it in Excel or import it into a database.

Online vs App

Same job, two ways — pick the one that fits your file:

	Online	App
Free	✓	Trial
No install	✓	—
No upload	✓	✓
Large files / batch	✗	✓
GUI	✓	✓
CLI	—	✓

In short: this page is best for a quick, small file. For large files or batch jobs, use the TextMerger desktop app — it also ships a command line for scripts and scheduled runs.

What to Know About TSV

A single header row is kept from the first file.
Tab characters inside fields are preserved.
Files are appended in the order you add them.
The merge runs locally, so nothing is uploaded.

Frequently Asked Questions

How is a TSV different from a CSV?

TSV uses a tab character between columns instead of a comma, which avoids quoting issues when data contains commas.

Will the header repeat?

No, only the first file header is kept.

Can I convert TSV to CSV?

Yes, use the file-to-file converter to change the delimiter.

Need bigger files or batch conversion?

If this service cannot merge your data correctly, or your files are big than 100M, or more than 10 files at a time, you can merge TSV files locally by this App: Text Merger, for Windows, Linux, and macOS.

Want to stay in the browser? Subscribe (from $5/month) to raise the online limits.

If you have any question or suggestion, please contact us.