developer Tool
Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 strings with UTF-8 and URL-safe options.
Zero-Leakage Local Processing
All text formatting, JSON/JWT parsing, cryptographic hashing, and image compression execute entirely inside your browser. No private data is ever sent to Burnjet servers.
How It Works
Converts strings into binary byte arrays and base64-encodes them in client memory.
Frequently Asked Questions
Common questions about calculations, assumptions, and edge cases.
Yes, Base64 Encoder & Decoder is 100% free with unlimited calculations and zero paywalls or subscriptions.