File Tools
CSV to JSON
Paste CSV or choose a file, inspect parsing errors and download clean JSON without sending data anywhere.
Your files are processed locally in your browser and are not uploaded.
Your JSON result will appear here.
Most tools work locally. Background removal and Document to Markdown upload selected files for server processing and delete them afterwards.
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How to use
- Drop a CSV or paste its contents.
- Choose a delimiter, header and type-detection options, then review the row and column counts.
- Copy or download JSON, JSON array or JSON Lines.
Great for
- Moving spreadsheet data into an API
- Inspecting exported reports
- Preparing JSON fixtures
Good to know
Malformed rows are reported instead of silently guessed. Very large files may need a smaller selection on low-memory devices.
Frequently asked questions
Is CSV content uploaded?
No. Parsing and JSON generation happen locally; content is not sent to analytics.
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