Developer · Data Wrangling

CSV to JSON Converter

Convert tabular data between CSV and JSON in both directions — right in your browser. Handles quoted fields, embedded newlines and custom separators, and shows a live preview of the first rows. No uploads, no signup, fully private.

CSV input

0 rows · 0 cols

JSON output

⇄ Two-way conversion

CSV to JSON for flat tabular data, and JSON arrays of objects back to clean CSV.

“” RFC-4180 quoting

Fields containing the separator, quotes or newlines are correctly quoted and unquoted.

⚛ Custom separators

Comma, tab, semicolon or pipe — perfect for European decimal data and TSV exports.

🔒 100% private

Everything is converted locally in your browser. Your data never leaves your device.

More developer tools

Generate favicons, compare colors and inspect HTTP status codes.

HTTP Status Codes

Related Tools

🖥️ HTML Preview Write HTML, CSS and JavaScript and watch it render live in a sandboxed preview. Includes demo templates, copy and download. ✉️ Email Validator Check email addresses for syntax, domain format, common typos, disposable domains and role-based inboxes — batch check a whole list at once. 🔒 Base64 Encoder & Decoder Encode text or files to Base64 and decode it back — UTF-8 safe, URL-safe alphabet and data-URI support, all in your browser. 📦 JavaScript Minifier Safely minify JavaScript — comments and whitespace removed while strings, template literals and regexes stay intact, with size savings stats. 🌐 Punycode Converter Convert Unicode domains and emails to xn-- Punycode and back — RFC 3492 compliant with per-label encoding. 🗄️ TSV Converter Convert TSV data to CSV, JSON, Markdown, HTML or SQL with proper quoted-field parsing and a live preview.