Developer Tools
Free online developer tools for everyday coding tasks. Generate hashes, encode/decode Base64 and URLs, decode JWT tokens, test regex patterns, and format code - all running locally in your browser with no signup required.
What are Developer Tools?
Developer tools are utilities that help programmers handle common encoding, decoding, hashing, and debugging tasks during software development. Our collection covers cryptographic hashing (MD5, SHA-1, SHA-256, SHA-512), data encoding (Base64, URL encoding), token inspection (JWT decoding), pattern matching (regex testing), and code formatting - essential operations that developers perform daily across web, API, and systems programming workflows.
Common Use Cases
- Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for data integrity verification
- Encode and decode Base64 strings for API payloads and data URIs
- Encode URL parameters with special characters for web requests
- Decode JWT tokens to inspect header and payload claims during authentication debugging
- Test and debug regular expressions with real-time matching against sample text
- Format JavaScript, TypeScript, HTML, CSS, and other code with Prettier
- Verify file integrity with cryptographic checksums
All Developer Tools (6)
Hash Generator
Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes.
Base64 Encoder
Encode and decode Base64 strings and files.
URL Encoder
Encode and decode URL parameters and query strings.
JWT Decoder
Decode JSON Web Tokens to view claims.
Regex Tester
Test and debug regular expressions in real-time.
Code Formatter
Format code with Prettier in multiple languages.