Free · No signup · Browser-based
Convert TSV to JSON.
Drop a .tsv file or paste tab-separated data and get a typed JSON array of objects. Numbers stay numbers, booleans stay booleans, blanks become null. Runs in your browser.
Drop a .tsv file or paste tab-separated data and get a typed JSON array of objects. Numbers stay numbers, booleans stay booleans, blanks become null. Runs in your browser.
This reads your tab-separated data — the header row becomes the keys, each line a record — and emits a typed JSON array of objects. Numeric columns become JSON numbers, true/false become booleans, and empty cells become null, so you get real typed JSON rather than strings everywhere. It all runs locally in your browser.
Drag a file, click to choose, or paste data directly into the input pane.
Types are inferred so the output is correctly formatted — not strings everywhere.
Copy the output, download it, or hit 'Build dashboard' to chart what's in the data.
Free JSON converters often produce sloppy output — every value quoted, types lost, errors swallowed. Ours infers types where it can, fails loudly when it can't, and pairs the conversion with a one-click path to a dashboard.
Numbers, booleans and nulls are preserved wherever JSON supports them — not every value dumped as a quoted string.
Your file is parsed and converted in your browser — verify in DevTools → Network. Nothing is uploaded, logged, or stored.
Malformed input gives a clear, specific error instead of silently wrong output — so you can trust what comes back.
Every conversion keeps a tabular copy, so you can send the data straight to our visualization tool to chart it.