Local Basic Auth header generator
- Input→
- Options→
- Result
Generate Basic Auth headers online
Create a ready-to-copy Authorization header for API testing and HTTP clients.
The value is generated locally in the browser from the username and password you enter.
Quick start
Generate or decode Basic Auth locally.
- Choose the operation and server-compatible encoding
- Enter credentials or a Basic header and press Process
- Copy the result securely; use HTTPS and reveal secrets only when needed
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The tool runs directly in the browser and is ready for quick checks without installing software.
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Input can be cleared and recalculated immediately, which is useful for repeated small tasks.
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Use fullscreen mode when you need more space for long text, structured data or large result blocks.
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Copy buttons are available on generated output so results can be reused in code, documents or support chats.
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Most operations are deterministic: the same input and options produce the same output.
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For sensitive content, prefer local browser tools and review the result before sharing it further.
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