What is Base64URL?
It is a URL-safe version of Base64 encoding.
Tool workspace
Encode Base64URL online instantly. Convert data into URL-safe Base64 encoding used by JWT tokens and web APIs.
Output
Base64URL Encoder converts text into a URL-safe variant of Base64 encoding. Unlike standard Base64, Base64URL replaces certain characters so the encoded result can be safely included in URLs without additional encoding.
Input
https://api.example.com/auth?token=dXNlcl9pZD03NDIxJnNjb3BlPXJlYWRfd3JpdGU
Output
aHR0cHM6Ly9hcGkuZXhhbXBsZS5jb20vYXV0aD90b2tlbj1kWE5sY2w5cFpEMDNOREl4Sm5OamIzQmxQWEpsWVdSZmQzSnBkR1U
Base64URL encoding replaces characters like "+" and "/" with URL-safe alternatives and removes padding so the encoded string can safely appear in URLs.
It is a URL-safe version of Base64 encoding.
It avoids characters that are unsafe in URLs.
Commonly in JWT tokens and web APIs.
Padding is typically removed.
Yes using Base64URL decoding.
No it is encoding only.