Base64 Encode / Decode
Convert texts to Base64 format or decode Base64 encoded texts.
Base64 Encoder & Decoder Tool
Convert text to Base64 encoding and decode Base64 strings back to readable text. Essential for data transmission, API integration, and web development. Supports UTF-8 and handles special characters perfectly.
Text to Base64 Encoding
Convert plain text, special characters, and Unicode strings into Base64 format for safe transmission over text-based protocols.
Base64 to Text Decoding
Decode Base64 encoded strings back to their original text format. Automatically handles padding and validates input format.
Common Applications
- Email Attachments (MIME)
Encode binary files for email transmission using MIME protocol
- Data URIs & Embedded Images
Embed images directly in HTML/CSS using data:image/png;base64 format
- API Data Transmission
Send binary data safely through JSON APIs and REST services
- HTTP Basic Authentication
Encode username:password combinations for HTTP auth headers
Base64 Variants & Standards
Standard Base64
RFC 4648 compliant, uses +/ characters
URL-Safe Base64
Uses -_ instead of +/ for URL compatibility
No Padding
Omits = padding for size optimization
⚡ Performance & Technical Details
Encoding Ratio
3 bytes → 4 characters
Character Safety
- • ASCII printable only
- • No control characters
- • Email/HTTP safe
Important Notes
- • Not encryption/security
- • UTF-8 compatible
- • Reversible encoding