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uencoder
PIPELINE Hashing & Validation Beginner 2 steps

HMAC Sign then Base64 Encode

HMAC provides message authentication. Base64 encoding makes it suitable for HTTP headers.

What it solves

Generate HMAC signature then Base64-encode for API auth headers.

Input → Output

HMAC Generator input → Base64 Encoder output across 2 steps.

Runs in

1–2 minutes · fully local in your browser.

Before you start

  • Message and secret key

The pipeline

  1. 1 HMAC Generator hmac-generator

    Generate HMAC (Keyed-Hash Message Authentication Code) with SHA-1/256/512. Free, private, and 100% client-side.

    Params: key=mysecretkey, algorithm=SHA-256

  2. 2 Base64 Encoder base64-encode

    Encode text or binary data to Base64 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. HMAC Generatorhmac-generator
  2. Base64 Encoderbase64-encode

Sample input

message

Expected output

MjcxMjg0MTY4ZDRkYWY2YWMyNTM2NjZlZTczMzhiNGM3ODAzN2NjZDgyMjNhMjkxNjJmYTgzNTI2NmQ1MmZjMA==

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

Related workflows

Hash content and encode as Base64
Compute a hash of the input and encode the hash digest as Base64 for compact transport.
PIPELINE
HMAC sign and verify
Generate an HMAC signature for a message and verify it against an expected signature.
PIPELINE

You might also need

Workflows sharing tools or topics with this recipe.

HMAC-sign an API request string
Generate an HMAC-SHA256 signature for a request payload to authenticate API calls.
PIPELINE
AES encrypt then Base64 encode
Encrypt plaintext with AES and encode the ciphertext as Base64 for text-safe transport.
PIPELINE

Learn more

Base64 vs Base32 vs Base58
Compare three popular base-encoding schemes and learn when to choose each one.
TUTORIAL
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

Tools used

HMAC Generator
Generate HMAC (Keyed-Hash Message Authentication Code) with SHA-1/256/512. Free, private, and 100% client-side.
TOOL
Base64 Encoder
Encode text or binary data to Base64 online. Free, private, and 100% client-side.
TOOL