Base64 Decode

Decode Base64 encoded strings

How to use

  1. Paste a Base64 string into the input box.
  2. The decoded text appears instantly below.
  3. Copy the result to use wherever you need the original content.

Why use this tool

Frequently asked questions

Why does decoding fail?

The input may not be valid Base64 — check for missing characters, spaces, or that it isn't URL-safe Base64 that needs different handling.

Can I decode a Base64 image or file?

This tool decodes Base64 text. For images, use the Base64-to-Image tool, which rebuilds the picture from the encoded string.

Is my data private?

Yes. Decoding happens entirely in your browser and nothing is uploaded.

Back to all tools