Your practical dev toolkit
Free online developer tools for everyday coding.
Encode and decode Base64 or URL components, format JSON, inspect JWT claims, generate UUIDs, and create SHA text hashes with six handy browser-based tools.
- Runs in your browser
- No sign-up
- Free to use
The toolkit
Small jobs. Sorted.
Pick a tool and get straight to work. Your input stays in the browser while you use each utility.
- Encoding
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to readable text.
Open tool - Encoding
URL Encoder & Decoder
Encode or decode URL components for safe use in web addresses.
Open tool - Formatting
JSON Formatter & Validator
Format JSON for readability and check whether it is valid.
Open tool - Web development
JWT Decoder
Inspect the header and payload of a JSON Web Token.
Open tool - Generation
UUID Generator
Generate version 4 UUIDs using browser cryptography APIs.
Open tool - Security
Text Hash Generator
Calculate SHA-256, SHA-384, or SHA-512 digests for text.
Open tool