link_off

Base64URL Decode

Decode URL-safe Base64 strings back to original content. Restore Base64URL encoded data.

Base64URL Input

Paste URL-safe encoded string

0 characters
linkURL-Safe Characters
-hyphen
_underscore
+replaced
/replaced
=no padding

Decoded Output

Original content

link
south
text_snippet

Enter Base64URL encoded data to decode

Base64 vs Base64URL

FeatureBase64Base64URL
Special chars+ /- _
Padding= requiredoptional
URL safeNoYes
Common useEmail, MIMEJWT, URLs

About Base64URL Decoding

Base64URL decoding converts URL-safe Base64 encoded strings back to their original data. This tool automatically handles the character substitutions (- to +, _ to /) and adds necessary padding before decoding.

  • Commonly used to decode JWT token parts
  • Handles missing padding automatically
  • Converts - back to + and _ back to /
  • Works with both padded and unpadded input
  • All processing happens locally in your browser