HTTP Basic Auth Header Generator

Generate standard HTTP Authorization: Basic <base64> credentials from username and password.

How It Works & Processing Standards

Generate standard HTTP Authorization: Basic <base64> credentials from username and password.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

HTTP Basic Auth Header Generator is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use HTTP Basic Auth Header Generator

  1. 1
    Enter Username & PasswordProvide the client username and password.
  2. 2
    Copy Authorization HeaderCopy the generated Authorization: Basic ... string.

Common Use Cases

  • Testing API endpoints with curl or Postman, configuring webhook authentication, and server testing
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