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📝 Base64 String Converter
Convert between text strings and Base64 encodingConvert between text strings and Base64 encoding. Supports URL-safe Base64 encoding and decoding. Handles Unicode characters and data URLs automatically.
String to Base64
Encode URL Safe
String to Encode
Base64 of String
Base64 to String
Decode URL Safe
Base64 String to Decode
Decoded String
Usage Guide
Input Text or Base64
Enter text string or Base64 string
Choose Direction
Select conversion direction
String to Base64Base64 to String
Convert and Copy
Convert and copy result to clipboard
Features
🔄Bidirectional text and Base64 conversion
🔗URL-safe Base64 encoding support
⚡Real-time conversion and validation
🔍Unicode character support
📋One-click copy to clipboard
🔒Local processing, complete privacy
Technical Introduction
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It's commonly used for encoding binary data in text-based protocols.Binary data encoding for text transmission
Email attachments and MIME types
Data URLs and web storage
Best Practices
Follow these guidelines for optimal Base64 usage and security.Use for text-based protocols only
Consider size increase (33% overhead)
Validate input before processing
Base64 encoding increases text size by approximately 33%. All processing is done locally in your browser for maximum privacy and security.