CSV to JSON Online
Turn table rows into readable JSON arrays.
Free to use. No added watermarks.
- 1Choose files
- 2Make it yours
- 3Preview & save
Drop a file here
Or choose from your device. Your originals stay unchanged.
CSV,TSV · 20 MB per document (25 MB for PDF) · 50 MB total · max. 20 files
Processed on your device. No file upload.
How to use CSV to JSON
- Choose a csv or tsv file.
- Adjust the available options and process your file.
- Review the result, then copy or download it.
Make the result work for you
Represent a table as a JSON array of row arrays. This includes the header row and preserves duplicate headings without guessing object property names.
Formats and practical limits
Convert each row into an array to preserve duplicate headers, empty cells, and original column order without guessing a schema.
About this tool
What can I do with CSV to JSON?
Represent a table as a JSON array of row arrays. This includes the header row and preserves duplicate headings without guessing object property names.
Which inputs and outputs does this tool support?
CSV / TSV → JSON. Output is an array of arrays, including the header row. Values remain strings.
Does CSV to JSON upload my data?
Selected file contents and generator inputs are processed locally in your browser. The website still loads its code and fonts from the host. Download results before closing the page.
How do I keep my result?
Review the preview, choose a download filename, and save the generated file. Text and table outputs also offer copy actions. The source file is unchanged.