curlybits is a small collection of free online tools for everyday jobs, made by an independent developer. Each tool does one thing well, loads fast, and works without an account.
Your files stay on your device
Every tool on curlybits runs inside your web browser. When you format JSON, resize a photo or count words, the work happens on your own computer or phone, and nothing you enter is uploaded to a server. That makes the tools fast, and it means private data such as customer exports, Wi-Fi passwords and personal photos is never seen by anyone else.
The tools
- JSON Formatter: Pretty-print and validate JSON, with exact error locations.
- JSON Minifier: Strip whitespace to shrink JSON and see the bytes saved.
- JSON to CSV: Flatten JSON arrays into CSV for Excel or Google Sheets.
- CSV to JSON: Turn CSV with a header row into a typed JSON array.
Free, supported by ads
All tools are free to use, with no limits, watermarks or trials. The site may show ads to cover the cost of running it. Ads never get access to what you type or the files you open in a tool.
Get in touch
Found a bug, have an idea for a new tool, or need help? Contact us. Every message is read.
Also from us: curlytab.com, free QR code generator, image tools, password generator and word counter.