Base64 Encoder / Decoder

Encode and decode strings using Base64. Supports UTF-8 and URL-safe formats with real-time conversion.

URL-Safe

Real-time

Text Input

Base64 Output

What is Base64?

Base64 is an encoding scheme that converts binary data into a text format so that it can be transmitted over networks that only reliably support text content. It is widely used in email, storing complex data in XML/JSON, and embedding images in CSS or HTML.

What is URL-safe Base64?

Standard Base64 uses the characters + and /, which have special meanings in URLs and file paths. URL-safe Base64 replaces + with - and / with _, making it completely safe to pass in URL parameters without further encoding.