Free Tool
Base64 Encoder/Decoder
Convert text, images, and files to and from Base64 encoding. Perfect for embedding data in JSON, HTML, or transmitting binary data as text.
Base64 Conversion
Choose your conversion type and input method
About Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for:
- • Embedding images in HTML/CSS (data URLs)
- • Storing complex data in JSON
- • Email attachments (MIME)
- • Transmitting binary data over text-only protocols
- • API authentication tokens
The encoded output is approximately 33% larger than the original binary data.