What is Base64?

Base64 is a binary-to-text encoding that converts binary data into a string of ASCII characters. It's commonly used to embed images in HTML/CSS, send binary data in JSON or XML, encode email attachments, and store binary content in text-based formats. Each Base64 character represents 6 bits of data, making the encoded output about 33% larger than the original.

How to use

1. Choose Encode or Decode mode using the tabs above
2. Type, paste, or upload a file in the input panel
3. The tool converts in real-time as you type
4. Copy the result or download it as a file
5. Enable URL-safe mode to use - and _ instead of + and /