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.
Quick Reference & Instructions
Simple steps, pro tips, and execution details
Paste or Enter Input
Paste your raw JSON, code snippet, tokens, or values into the input panel.
Select Options & Modes
Choose formatting options, indentation spaces, or target conversion standards.
Copy or Download Output
One-click copy to clipboard or download the formatted file ready for production.
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.
Standard Base64 uses "+" and "/" characters, which have special meaning inside a URL; URL-safe Base64 replaces them with "-" and "_" so the encoded string can be used directly in a URL or filename without extra escaping.