Basic Auth Generator

Create a Base64-encoded Basic Auth credential and ready-to-use Authorization header. Enter username and password in settings, or paste user:pass in the input.

  • Runs entirely in your browser
  • No data stored or sent to a server
  • Free forever — no signup
  • Instant conversion

Input and Output

Use the interactive encoder and decoder on this page to process your text.

Learn more about Basic Auth

How to Generate Basic Auth Headers

Basic Authentication

Basic Auth Format

HTTP Basic Authentication encodes username:password as Base64 and sends it in the Authorization header.

Frequently asked questions

Is Basic Auth secure?

Only over HTTPS. Base64 is encoding, not encryption. Never send Basic Auth credentials over plain HTTP.