Base64 Encoder / Decoder
Quickly encode text to Base64 or decode Base64 strings back to plain text.
Runs locally in your browser. 100% private & secure.
About Base64 Encoder / Decoder
What is Base64?
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. The term Base64 originates from a specific MIME content transfer encoding.
Common Use Cases
- Email: Used to encode attachments via MIME.
- HTML/CSS: Used to embed small images directly into HTML (
<img src="data:image/png;base64,...">) or CSS files to reduce HTTP requests. - Data Transfer: Safely encoding data across networks that might corrupt raw binary data or special characters.
Frequently Asked Questions
Is my text sent to a server?
No. The conversion is done entirely in your browser using JavaScript. No data is transmitted.