Basic Auth Generator & Decoder
Generate or decode Base64-encoded Basic Authentication headers and credentials instantly.
Credentials Input
Authorization Header
Base64 String Only
Why Use Our Basic Auth Generator & Decoder?
Create or reverse secure HTTP authorization strings instantly for API testing, web servers, and debugging.
HTTP Basic Authentication requires credentials to be concatenated in a username:password string and then encoded into Base64 format. Conversely, troubleshooting incoming web traffic or inspecting captured headers often requires decoding Base64 back into readable strings.
Our tool offers dual-mode capability for both generating and reversing authorization strings directly in your browser. Because processing is executed entirely client-side, your sensitive passwords and credentials never get transmitted to external servers.
Encode & Decode Support
Switch seamlessly between generating new headers and decoding existing Base64 tokens.
100% Client-Side Safety
Your credentials stay strictly inside your browser memory with zero server uploads.
Standard Header Output
Instantly formats output with the proper Basic <token> prefix for HTTP requests.
One-Click Copy
Copy full headers or raw Base64 tokens straight to your clipboard with a single click.
Ideal for Developers & QA
Perfect for configuring Postman collections, debugging server logs, or protected environments.
Completely Free & Unlocked
Generate or decode as many credentials as you need with zero registrations or restrictions.