Merge TSV Files

Merge TSV files in your browser. Paste two tab-separated files side by side and combine them row by row with optional header control and export.

Total rows: 0
Options
Keep only first header
Trim each cell
Maximize output

How to Use:

  • Paste your first file into the TSV A box and your second file into the TSV B box.
  • Enable Keep only first header to keep the header from TSV A and skip the one from TSV B.
  • Use Trim each cell to remove extra spaces from fields before merging.
  • Enable Maximize output to expand the output area for larger merged data.
  • Click Merge to generate the combined output.
  • Click Copy Output to copy the result or Export to File to download the merged .tsv.
  • Click Clear All to reset both inputs, output, toggles, and counters.

What Merge TSV Files can do:

Merge TSV Files joins two tab-separated files horizontally, line by line. Each row from TSV A is combined with the corresponding row from TSV B. You can choose to preserve only the first header row and trim whitespace from each field. The tool previews the result live and gives you export and copy options all without leaving the browser.

Example:

TSV A:

id	name
1	Alice
2	Bob

TSV B:

age	city
30	NY
25	LA

Output (with “Keep only first header” on):

id	name	age	city
1	Alice	30	NY
2	Bob	25	LA

Common Use Cases:

Use Merge TSV Files when combining datasets with matching rows but separate columns. It’s useful for data enrichment, combining exports from different sources, or joining metadata with main records. Works great for analysts, devs, and editors who want quick merging without Excel or scripts.

Useful Tools & Suggestions:

After using Merge TSV Files, try Delete Empty TSV Rows to clean up any blank lines that got pulled in. And if you want to check the structure afterward, Count TSV Columns gives you a quick sanity check.

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