Base64 to YAML Decoder

Decode Base64 back to YAML instantly — no upload, fully private.

Runs 100% in your browser. Your data never leaves this page.
Base64 input
YAML output

How to use

  1. Paste your Base64 string into the input box.
  2. The decoded YAML appears on the right.
  3. Copy or download it.

Decodes Base64 and validates that the result is valid YAML.

Frequently asked questions

What if the decoded text is not YAML?

You will see a clear validation error on the right.

Is it private?

Yes. Decoding runs entirely in your browser.