100% local and secure
Your data stays on your device and is never sent to our servers.
Basic Auth Generator
Encode a username and password locally to produce Base64, Authorization, cURL, and Fetch output.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
Basic Auth should always be used over HTTPS.
Base64 value
Authorization header
cURL example
Fetch example
Why use this tool?
Encode a username and password locally to produce Base64, Authorization, cURL, and Fetch output.
Smart processing
Generate or verify sensitive data with clear and immediate controls.
Supported formats
Strings, keys, hashes, and technical formats depending on the security function.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Fonctionnement
How does this tool work?
The generator joins the username and password using the HTTP Basic separator, encodes the text as UTF-8 and Base64, and builds the matching Authorization header. It also creates cURL and Fetch examples without sending or storing the credentials.
Use cases
Test a protected endpoint
Create a Basic Auth header for a development or test environment.
Document authentication
Provide reproducible examples in API documentation.
Verify an encoding
Compare an expected Base64 value with a locally generated result.
Guide
How to use this tool
- 1
Enter the data
Fill in the fields or paste the information required for the operation.
- 2
Configure the process
Choose the options, formats, or algorithms that fit your use case.
- 3
Use the result
Generate and copy the locally produced report, code, or value.
Tips and best practices
- Avoid entering production secrets on a shared device.
- Always review generated output before using it in a real environment.
- All operations are performed locally in your browser.
Frequently asked questions
Are data sent to a server?
No. Processing runs locally in your browser and the entered information is not transmitted.
Can generated results be copied?
Yes. Every generated output can be copied directly for reuse in code or documentation.
Can I use sensitive data?
Processing is local, but production secrets should still be avoided on shared or untrusted devices.
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