JSON tools
CSV to JSON
Paste or load a CSV and produce an object array or two-dimensional JSON array while preserving quoted commas and newlines.
All data is processed locally in your browser. Nothing is uploaded or sent to analytics.
Most tools process locally in your browser. Background removal uploads selected images to the configured server processor and deletes the source after processing.
Sponsored linkLearn more →
How to use
- Paste CSV or choose a .csv file.
- Let the tool detect commas, semicolons or tabs, or choose one manually.
- Choose headers, type inference and output shape, then convert and download JSON.
Great for
- Loading spreadsheet exports
- Preparing data for an API
- Turning a table into test fixtures
Good to know
When no header exists, generated names such as Column 1 are used. Automatic type inference can change a value’s type.
Frequently asked questions
Are multiline CSV cells supported?
Yes. Quoted cells may contain commas, quotes and line breaks.
Can every value remain a string?
Turn off type inference to preserve all cell values as strings.
You may also like
JSON to CSV
Convert JSON objects or arrays to CSV with flattened fields, delimiter choices, preview and Excel-friendly UTF-8.
Open tool →JSON Formatter & Validator
Format, validate, minify and inspect JSON with line-aware errors, statistics and safe local processing.
Open tool →JSON Diff
Compare two JSON documents by structure and see added, removed and changed paths without formatting noise.
Open tool →