CSV ↔ JSON
Convert CSV with quoted fields and JSON records.
How it works & limits
How to use this tool
Convert CSV with quoted fields and JSON records.
Paste or enter your content. The result updates as you type. Choose an option only when you need to change the default.
CSV parsing respects quoted separators and line breaks. JSON to CSV accepts flat object records; nested objects require flattening first.
Example input
name,role Alex,Developer "Sam, Jr.",Designer
Local processing
Your input stays in this browser. Drafts are kept in page memory while switching tools, and disappear on reload.
Text is limited to 1 million characters. Regex runs in a worker, capped at 200,000 characters, 1,000 matches and 1.5 seconds. Inputs above 100,000 characters use manual refresh.
The first page load and on-demand modules require network access. A complete offline cache is not included.