NextTool

TSV Converter

How to use

Converts freely between CSV, TSV and JSON in any direction, so you can move tabular data between formats without opening a spreadsheet app.

Excel & CSVLocal only

Step 2 of 3: Convert

  2. 2
  3. 3

Step 2 of 3 · Convert

Input (CSV)

Output (JSON)

When to use this
  • Turning a tab-separated database export into comma-separated CSV for a spreadsheet app
  • Converting a JSON API response into TSV for a colleague who works in Excel
  • Standardizing files from different sources into one common format before merging them
  • Quickly checking how the same dataset looks across CSV, TSV, and JSON representations

Free and private. Everything runs on your own device, with no account and no uploads.

This tool converts freely between CSV, TSV, and JSON formats, letting you pick any of the three as your input and any as your output. It is handy when you have tab-separated data from a database export that needs to become comma-separated CSV, or JSON that needs to become a spreadsheet-friendly table. All format conversion happens locally using a hand-written parser, with no file upload involved.

Yes, you can pick JSON as the input and TSV as the output (or any other combination among CSV, TSV, and JSON).

No, it works with plain text CSV/TSV and JSON; it does not read or write .xlsx binary spreadsheet files.

The tool requires the JSON input to be an array of objects and will show an error if it is not.

Yes, a download button saves the result with the appropriate file extension for the chosen output format.

How it works
  1. 1

    Select the input format

    Choose CSV, TSV, or JSON as the format of your source data.

  2. 2

    Paste or type your data

    Enter the data matching the selected input format.

  3. 3

    Select the output format

    Choose the format you want to convert to.

  4. 4

    Copy or download the result

    Grab the converted output with the copy button or file download.

More in Excel & CSV
CSV Viewer
View and browse CSV files in a clean table layout in browser
CSV Editor
Edit CSV data in an interactive spreadsheet-style table editor
CSV Cleaner
Remove extra spaces, fix encodings, and sanitize CSV data automatically
CSV to JSON
Convert CSV files to JSON arrays with configurable key mapping
Read about this
YAML, JSON and TSV: picking a format for config and interchange4 minCSV delimiters, quoting and encoding: the three things that break files4 min
Pro tips
  • ·Double-check the input format selector matches your actual data, mismatched formats produce confusing parse errors.
  • ·When converting to JSON, make sure your source has a clear header row so field names come out correctly.
  • ·Use this as a one-off; for repeated conversions in a pipeline, a script is faster than a browser tool.