TSV files are commonly produced by spreadsheets. This tool parses each tab-separated row and converts it to a JSON object, using the first row as keys (if enabled). All processing happens in your browser.
TSV to JSON Converter allows you to transform tab-separated data into structured JSON format instantly. This free online tab separated values to JSON tool is perfect for developers moving data from spreadsheets to web applications or REST APIs. By default, the first row is treated as an array of keys, ensuring each record is a clean JavaScript object ready for your project.
This data format converter includes smart type inference for integers, decimals, and booleans, meaning you don't have to manually cast values later. You can also switch to 2D-array mode if you need a raw grid of values without header keys. All processing happens locally in your browser, so your sensitive tabular data is never transmitted to a server.
Cells matching a numeric pattern (integers, decimals, or scientific notation) are output as JSON numbers; "true" and "false" become JSON booleans; empty cells become null. Disable type detection if you need every value to stay a string.
Yes - turn off the "first row is header" option and the output becomes a flat array of arrays, preserving the original row/column structure.
In object mode, later columns with the same key overwrite earlier ones (standard JavaScript object behaviour). Rename duplicates upstream or switch to 2D-array mode to keep all values.
No. Parsing happens locally with the browser's JSON serializer; nothing is uploaded.
Whether you are migrating a spreadsheet or building a static API, this free online TSV to JSON converter provides fast, accurate results.