Base64 Encoder / Decoder

What is a Base64 Encoder / Decoder?

The Base64 Encoder / Decoder transforms text, code, or binary data into a safe, ASCII-only string for storage or transmission. Base64 encoding is a must-have for developers, bug bounty hunters, and penetration testers working with HTTP headers, JWT tokens, emails, and more. Decode encoded data in seconds or encode any input for secure transport.

• Fast and secure encoding/decoding for web, API, and security research
• Handles any text, JSON, code, or small binary blobs
• Copy/paste support for instant use in pentesting and development

Common Use Cases for Base64

- Encoding binary files for email attachments, web APIs, or safe database storage
- Decoding JWT tokens, HTTP cookies, or malware samples
- Safely embedding images, scripts, or config data in code or documents