Encoding & Decoding Tools
Professional encoding, decoding, and hashing tools for developers. Secure Base64 encoding, URL processing, hash generation, and more.
Base64 Encoding & Decoding
Base64 encoding is essential for transmitting binary data over text-based protocols. Our tools handle text, files, and images with perfect accuracy.
Base64 Security Considerations
Important Security Notes
- • Base64 is encoding, not encryption - data is easily reversible
- • Never use Base64 alone for sensitive data without proper encryption
- • Increases data size by approximately 33%
- • Use URL-safe variant for web applications when needed
URL Encoding & Decoding
URL encoding ensures safe transmission of data in web addresses by converting special characters to percent-encoded format.
URL Encoder/Decoder
Safely encode URLs and query parameters. Handle special characters, international text, and complex parameter strings.
- Complete URL encoding
- Query parameter handling
- Unicode support
Perfect For:
- • API URL construction
- • Form data encoding
- • Search parameter handling
- • International character support
URL Encoding Examples
| Original | Encoded | Use Case |
|---|---|---|
| Hello World! | Hello%20World%21 | Query parameters |
| user@example.com | user%40example.com | Email in URL |
| price=$25.99 | price%3D%2425.99 | Form data |
Hash Generation Tools
Generate cryptographic hashes for data integrity, password verification, and security applications using industry-standard algorithms.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files. Essential for data integrity and security verification.
- Multiple algorithms
- File hash support
- Instant results
Hash Algorithm Guide:
- • MD5: Fast, legacy use only
- • SHA-1: Deprecated for security
- • SHA-256: Current standard
- • SHA-512: Maximum security
Hash Use Cases
- Data Integrity: Verify file integrity and detect corruption
- Password Storage: Store password hashes instead of plaintext
- Digital Signatures: Create unique identifiers for documents
- Version Control: Git uses SHA-1 hashes for commit identification
JWT Token Tools
Decode, validate, and understand JSON Web Tokens (JWT) for authentication and secure data exchange in modern web applications.
JWT Decoder & Creator
Decode JWT tokens to inspect headers, payloads, and signatures. Understand token structure and validate claims.
- Token decoding
- Header analysis
- Payload inspection
JWT Components:
- • Header: Algorithm and type
- • Payload: Claims and data
- • Signature: Verification hash
- • Claims: Standard and custom
Security & Privacy
Our encoding and decoding tools prioritize your security and privacy with client-side processing and no data storage.
Client-Side Processing
All encoding and decoding happens in your browser. No data is sent to our servers.
No Data Storage
We don't store, log, or transmit your input data. Everything stays on your device.
Open Source Security
Our tools use standard, well-tested algorithms. View source code for transparency.
Best Practices for Secure Encoding
- • Never encode sensitive data without encryption first
- • Use HTTPS when transmitting any encoded data
- • Validate and sanitize all decoded input
- • Use proper authentication with JWT tokens
- • Choose SHA-256 or higher for cryptographic hashing
- • Implement proper rate limiting for hash operations
Start Encoding Securely
Choose the right encoding tool for your needs. All tools process data locally for maximum security and privacy.