Base64 Encoder
and Decoder
Convert text to Base64 encoding and decode Base64 back to text.Essential for data transmission, API authentication, and web development.
Core Features
Encode & Decode
Convert text to Base64 and decode Base64 back to text instantly
Real-time Processing
Instant conversion as you type with live validation and error detection
Error Detection
Real-time validation with detailed error messages
Quick Operations
Copy output, load samples, and swap between encode/decode modes
Common Use Cases
Data URLs
Embed images and files directly in HTML/CSS
API Authentication
Basic authentication headers in HTTP requests
Email Attachments
MIME encoding for email file attachments
Web APIs
Transmit binary data through JSON APIs
Best Practices
Security Considerations
Base64 is encoding, not encryption. Never use for securing sensitive data
Performance Impact
Base64 increases data size by ~33%. Consider for large files or frequent calls
Character Encoding
Always verify UTF-8 character handling for international text and emojis
Validation
Always validate Base64 format before processing in production applications
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We build robust APIs and data processing systems that handle Base64 encoding at scale with proper validation and error handling.