Convert CSV to JSON and JSON to CSV with delimiter and quote support.
Convert comma/semicolon/tab-separated data into clean JSON arrays, or turn JSON back into CSV. Handles quoted fields and custom delimiters.
100% client-side — zero uploads, maximum privacy
Instant results — no waiting for server processing
Secure — your data never leaves your browser
Free to use — no sign-up required
Handles real-world edge cases — malformed input, nested structures, large payloads
Syntax highlighting for easier reading and debugging
Copy-to-clipboard in one click — paste directly into your editor or terminal
Works with JSON, YAML, XML, CSV, Base64, JWT, and more
No file size limits for text processing
Convert exported CSV data into structured JSON for web apps
Transform spreadsheet exports into API-ready JSON payloads
Parse CSV logs into JSON for analysis tools
Migrate tabular data into NoSQL document stores
Generate JSON datasets from CSV for data visualization
Yes. The parser respects double-quoted fields, so commas inside quotes are preserved correctly.
Yes — choose comma, semicolon, tab, or pipe before converting.
Format, minify and validate JSON with syntax error details and document stats.
Test regular expressions with live match highlighting, groups and flags.
Encode text or files to Base64 with URL-safe and Unicode support.
Decode Base64 strings back to text or files with Unicode support.
Percent-encode URL strings for query parameters and paths.
Decode percent-encoded URLs and query strings instantly.