Turn a CSV into a clean JSON array of objects — delimiter and header options, quoted fields handled — on your own device.
A .csv or .json file — or paste below · converted on your device, nothing uploaded
No size limit · files are processed on your device and never uploaded · how it works
CSV in
JSON out
Runs in your browser. Files are never uploaded — you can go offline after the page loads.
How to use the CSV to JSON
Paste CSV or drop a .csv file.
Pick the delimiter and whether the first row is a header.
Copy the JSON or download it.
Easy to use
Drop files, pick options, download. Whole folders at once, no signup, no daily limit.
Best quality
The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.
Private & secure
Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.
CSV into clean JSON
Spreadsheet exports and database dumps come as CSV, but code wants JSON. This turns a CSV into a JSON array of
objects — the header row becomes the keys — and it parses properly quoted fields, escaped quotes and even values
with embedded commas or newlines, rather than naively splitting on commas.
It converts the other way too — JSON to CSV — and everything runs in your browser, so
business or personal data in the file never leaves your device. To tidy the JSON afterwards, use the
JSON Formatter.
Frequently asked questions
Does it handle commas inside a field?
Yes — properly quoted fields (with escaped "" quotes and even embedded newlines) are parsed correctly, not naively split on every comma.
Array of objects or arrays?
With “Header row” on, the first row becomes the keys and each following row is an object. Turn it off to get an array of arrays instead.
Is my data uploaded?
No — parsing and conversion happen entirely in your browser, so spreadsheets with personal or business data stay on your device.
Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.
No upload, ever. Turn off Wi-Fi after the page loads and every tool keeps working.
No limits. No file-size cap, no queue, no watermark, no account.
Runs on your CPU. Batches use several cores in parallel; nothing is throttled.