3 free tools
Free Developer Tools
The small utilities you open twenty times a day. All of them run locally, which matters more than usual here — pasting a payload or shipping an icon should never involve someone else’s server.
JSON Formatter & ValidatorFormat and validate JSON without sending it anywhere.Runs in your browser
QR Code Generator (with UPI)Generate a permanent QR code — no redirect, no tracking, no expiry.Runs in your browser
Favicon GeneratorCreate perfect favicons for all platforms in seconds.Runs in your browser
