tojson.orgYour data, beautifully structured.

CSV to JSON

Convert CSV or TSV to JSON with explicit delimiters, text preservation and optional type inference.

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Usage guide

Convert CSV or TSV to JSON with explicit delimiters, text preservation and optional type inference.

  1. 01

    Paste data or read from a file.

  2. 02

    Review the options; results update automatically. Run manually for larger inputs, and check warnings before applying changes.

  3. 03

    Copy or download the result. Your original document stays unchanged until you apply it.

Reference specifications:CSV · RFC 4180

Example input

id,name,active
001,Ada,true
002,Linus,false

Frequently asked questions

Can I recover my documents after closing the page?

Documents are saved automatically in this browser and restored when you return. Closing a document with X deletes it. Browser cleanup can also remove saved work; download important results or export your workspace.

Are CSV values converted to numbers automatically?

No. Fields stay as text by default; enable type inference to parse supported numbers, booleans and null. Leading zeros remain text.