Data
Turn your TSV files into JSON in seconds. Everything happens in your browser: nothing is uploaded to any server.
Drag your files here
Or paste them with Ctrl+V. They never leave your device.
Like CSV: a single sheet and no formatting. As JSON any program or API can use it directly.
TSV is like CSV but separates columns with tabs, so commas inside the text are not a problem.
Strengths: It pastes straight into a spreadsheet and is common for scientific data.
Limits: Like CSV: a single sheet and no formatting.
JSON is the data format of APIs and web apps: nested lists and objects as text.
Strengths: Every programming language reads it and it is easy to validate.
Limits: For a person, a table in JSON is harder to read than a spreadsheet.
No. The TSV to JSON conversion runs entirely in your browser, with code downloaded from this site and executed on your device. You can check it in the Network tab of the developer tools or by going offline after the page loads.
Up to 1 GB on desktop and about 200 MB on mobile, although a huge spreadsheet may take a few seconds.
Yes. Drop as many TSV files as you like: several are converted at the same time, depending on your processor cores, and when they finish you can download each JSON or all of them in a ZIP.