Turn a CSV into a clean JSON array of objects — or go the other way and build a CSV from JSON. Robust parsing, one click to copy or download.
CSV is what spreadsheets and exports speak; JSON is what APIs, config files and JavaScript apps expect. Converting between them is a daily job for developers, analysts and anyone wiring one system to another. This tool does it instantly in the browser — no sign-up, no upload, and your data never leaves the page.
Prepare seed data for an app, feed a spreadsheet export into an API, tidy a messy CSV into structured objects, or flatten a JSON response back into a table for Excel or Google Sheets. Because the parser follows the CSV standard, fields with commas, line breaks or quotation marks inside them survive the round trip intact.
Is my file uploaded to a server?
No. Everything happens inside your browser, so your data is never uploaded — completely private.
Does it handle quoted fields with commas or newlines?
Yes. The built-in parser understands double-quoted fields, commas and line breaks inside quotes, and escaped double-quotes (""), so complex CSVs convert correctly.
What does JSON → CSV expect?
Give it a JSON array of objects, for example [{"name":"Asha","city":"Pune"}]. The tool collects every key across all objects to build the header row, then writes one line per object.
Does it work on mobile?
Yes — it works on any modern phone or computer browser, and can be installed as an app for offline use.