Free Developer Tools — Your Data Never Leaves Your Browser
Developer tools handle the most sensitive data of any tool category — API tokens, JWTs, hashed passwords, encoded credentials, JSON API responses. Every dev tool on ToolsFlip runs entirely client-side. Nothing is sent to a server. Your data stays on your machine.
Developers often paste production data, API keys, and authentication tokens into online tools. Browser-based dev tools eliminate that risk entirely.
JSON Formatter
Format and validate JSON locally.
Base64 Encoder
Encode/decode Base64 without uploading.
JWT Decoder
Inspect JWTs without sending them to a server.
Hash Generator
Generate MD5/SHA hashes locally.
URL Encoder
Encode/decode URLs in your browser.
CSS Minifier
Minify CSS locally — no upload.
Regex Tester
Test regex patterns locally.
Text Diff
Compare text privately in your browser.