How to use Auth headers
- 1. Enter username and password. Used for Basic and Digest.
- 2. Optional Bearer token. Pasted as-is.
- 3. Copy the Authorization lines. Digest uses realm and nonce you provide.
- 4. Nothing is sent. Encoder only.
About this tool
Authorization headers are still the fastest way to document an API. This tool Base64-encodes Basic, prefixes Bearer, and builds a classic Digest MD5 response for GET without qop — enough to understand the wire format.
Digest is a sketch
No qop, no HA2 extras, no 401 round-trip. Production Digest needs the challenge from the server.
Never log these
Basic is reversible. Treat the output as secret.
Code examples
Basic
Authorization: Basic YWRhOnNlY3JldA==