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uencoder
PIPELINE Encoding & Decoding Beginner 1 step

Decode a Basic Auth credential pair

Remove the 'Basic ' prefix from the header value, then decode the remainder with UTF-8. Split the result at the first colon only. Treat the decoded value as a live secret — prefer throwaway test credentials.

What it solves

Decode the Base64 portion of an HTTP Basic Authorization header into username:password.

Input → Output

Base64 Decoder input → Base64 Decoder output across 1 step.

Runs in

1–2 minutes · fully local in your browser.

Before you start

  • A raw Base64 string (the part after 'Basic ' in the Authorization header)

The pipeline

  1. 1 Base64 Decoder base64-decode

    Decode Base64 data back to readable text online. Free, private, and 100% client-side.

Open in Toolchain

Runs locally in your browser. The recipe defines the pipeline only — your input never leaves this tab.

▶Run this workflow

Enter your input below and click Run. All processing happens locally in your browser — nothing is uploaded.

Pipeline progress

  1. Base64 Decoderbase64-decode

Sample input

dXNlcjpwYXNz

Expected output

user:pass

This pair is executed against the real tools at build time (tests/unit/recipes.test.ts) — the expected output is verified, not illustrative.

Related tasks

Read credentials from a Basic Auth header
A Base64 decode, a colon split, and a clear-eyed look at why Basic Auth credentials deserve careful handling.
TASK

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Learn more

Base64: how it works and when to use it
The byte-to-character mechanics behind Base64, why padding exists, which alphabet variants you will meet, and the boundaries where Base64 is the wrong tool.
TUTORIAL
How to Base64 Decode Text
Learn to reverse a Base64 string back to its original form, including how to handle padding and invalid characters.
TUTORIAL

Tools used

Base64 Decoder
Decode Base64 data back to readable text online. Free, private, and 100% client-side.
TOOL