HTTP Basic Auth Header Generator
Generate base64 encoded Authorization: Basic header credentials.
Syntax Checker & Code Validator
About HTTP Basic Auth Header Generator
The HTTP Basic Authentication Header (`Authorization: Basic`) Generator encodes username and password credentials into Base64 format (`Basic dXNlcjpwYXNz`) and generates curl, Postman, and server authentication snippets.
How to Use HTTP Basic Auth Header Generator
Step 1
Enter your username and password.
Step 2
Review the instant Base64 encoded `Authorization: Basic` header.
Step 3
Copy the header string or curl command snippet.
Practical Use Cases for HTTP Basic Auth Header Generator
Authenticating REST API Requests with Basic Auth
Generate standard `Authorization: Basic ...` headers for Stripe, Twilio, GitHub API, and webhook testing.
Testing Server htpasswd Authentication
Verify Base64 encoded credentials when configuring Nginx `auth_basic` or Apache `.htpasswd` protected staging directories.
Input & Output Examples
Encoding Username and Password
Username: "admin", Password: "secretpassword123"
`Authorization: Basic YWRtaW46c2VjcmV0cGFzc3dvcmQxMjM=` (Base64 of "admin:secretpassword123")
Key Features & Performance
- ✓Encodes username and password into RFC 7617 standard Base64 string format.
- ✓Generates ready-to-paste headers for curl (`-H "Authorization: Basic ..."`), Fetch API, Axios, and Postman.
- ✓Includes 1-click Base64 credential decoder to audit existing headers.
- ✓100% Client-Side Web Crypto & Base64 execution.
- ✓1-Click Copy authorization header.
Key Terminology & Definitions
HTTP Basic Authentication (RFC 7617)
A standard authentication scheme built into HTTP where client credentials are provided as a Base64-encoded `username:password` string.
Base64 Encoding
A binary-to-text encoding scheme representing binary data in an ASCII string format using 64 printable characters.