16 developer tools · 5 groups
Developer Tools
Format JSON, test regex, decode JWTs, and generate passwords without pasting secrets into a random upload form. Tools run in your browser.
Developer tool groups
Format
Encode
- Hash GeneratorHash text for checksums and cache keys — locally with Web Crypto (MD5 for legacy checksums only).
- Base64 Encode / DecodeConvert text to Base64 and back — including URL-safe variants.
- URL Encoder / DecoderEncode or decode URI components for query strings and path segments.
- URL ParserSplit a URL into components and query parameters for debugging.
Auth & Secrets
Test
Generate
How these developer tools work
Utilities run with JavaScript and Web APIs (including Web Crypto where stated). Tokens and passwords are not sent to ToolsWeb servers for supported tools. Read our Privacy Policy.
Who these tools are for
Developers, PMs, and QA who need quick local helpers during debugging—especially when payloads contain credentials.
FAQ
Is my JWT or password uploaded?expand_more
No for supported tools. Decoding and generation happen in your browser. Still treat secrets carefully on shared machines.
Do I need an account?expand_more
No.
Are password results stored?expand_more
No. Generated passwords stay in your session until you copy or clear them. See each tool’s disclaimer.
Looking for something else? Browse all tools.