Base64 URL Encoder

Create URL-safe Base64 encodings perfect for web applications and URL parameters.

Input Text

0 characters

URL-Safe Base64

0 characters
Read-only output

URL Safe

Replaces + and / with - and _ respectively, making it safe for URLs and filenames.

Web Compatible

Perfect for JWT tokens, URL parameters, and any web application requiring Base64.

RFC 4648

Follows RFC 4648 standard for Base64 URL encoding with proper character substitution.

Common Use Cases

JWT Tokens

Encode payload data for JSON Web Tokens used in authentication.

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ

URL Parameters

Pass complex data in URL query strings without encoding issues.

https://api.example.com/data?token=SGVsbG8gV29ybGQ