Base64 Encode & Decode

Easily convert text to Base64 and vice versa with full UTF-8 support.

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data.

This ensures that the data remains intact without modification during transport. Base64 is commonly used in HTML (for data URIs), Emails (MIME), and for basic authentication in HTTP.

UTF-8 Support

Standard atob and btoa in JavaScript only support ASCII. Our tool uses a robust method to handle multi-byte characters (Unicode/Emoji) correctly by first encoding the text as UTF-8 bytes before Base64 conversion.