Base64 Encoder & Decoder

Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It's commonly used to embed images in CSS, transmit data in URLs, and encode email attachments.

This tool encodes and decodes UTF-8 text. For binary files, you would need to read the file as bytes first — this text-based tool handles string content.

Yes. All encoding and decoding happens locally in your browser. No data is sent to any server.