Base64 Encoder / Decoder
Encode or decode Base64 strings instantly. Supports Unicode text, handles URL-safe variants. 100% browser-based, no data leaves your device.
Base64 encoded output will appear here…
Privacy First
All encoding and decoding runs entirely in your browser. No data is ever sent to a server.
Unicode Support
Handles emojis, multilingual text, and special characters using proper UTF-8 encoding.
Two-Way Conversion
Encode plain text to Base64 or decode Base64 back to text — use the "Use as Input" button to chain operations.
Need help with Base64?
Learn how to encode your data safely for web and legacy systems with our expert guide on encoding strategies and data URI implementation.
Read our Base64 Encoding Guide