🧾 TOOL • 100% PRIVATE
CSV to JSON & JSON to CSV — Free, Private Converter
Paste a CSV and get a clean JSON array, or paste flat JSON objects and get proper CSV back. Quoted fields, commas and newlines handled correctly.
🧾
CSV ↔ JSON Converter
Both directions — 100% local
CSV input
JSON output
JSON input
CSV output
How to convert CSV to JSON (3 steps)
- Paste your CSV in the left box — first row is treated as the header that names each field.
- Click "CSV → JSON". Each row becomes an object in the output array, with proper escaping of commas, quotes, and newlines inside values.
- Copy or reuse the JSON. The reverse direction works the same way: paste a JSON array of flat objects and get clean CSV back.
Why developers do this constantly
Spreadsheet exports are CSV; APIs and front-ends speak JSON. Bridging the two is one of the most repeated chores in web work — loading an analytics export into an app, seeding a database from a spreadsheet, debugging an API payload against its source data. Doing it in your browser means sensitive columns (names, phone numbers, orders) never cross a third-party converter's servers.
FAQ
- Does it handle quoted fields with commas? Yes — standard CSV quoting (fields wrapped in double quotes, inner quotes doubled) is parsed correctly in both directions.
- What if my JSON has nested objects? This converter works on flat objects (the CSV shape). Nested data needs a tool that understands tree structures.
- Are my data uploaded? No. Parsing and formatting run entirely in your browser.
🔒
100% PrivateEverything runs in your browser. Your data never touches a server.
⚡
Instant & FreeNo signup, no paywall, no limits. Fast on any device.
💬
Questions?Read our About page or contact us — we reply within 24 hours.