Why use Auth Header Validator?
Bearer tokens, JWT-looking strings, and Basic auth blobs are easy to mistype. Paste an Authorization header to validate structure, spot missing schemes, and preview decoded segments so you can fix copy/paste issues before burning time on 401s.
Practical tips
- Confirm there is exactly one space between scheme and credentials for Bearer tokens.
- If JWT segments look wrong, continue in JWT Decoder for claim-level inspection.
- Never share production tokens in screenshots; redact before pasting.
Common questions
- Does this verify signatures?
- It checks format and parsing. Cryptographic validation requires your keys and usually happens server-side.
- Why does Basic auth look like gibberish?
- Credentials are Base64-encoded. Decoder output is shown for debugging—handle secrets carefully.