🔐 Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 to plain text. Everything runs in your browser — your data is never sent to a server.
Mode
📝 Input Text
0 characters
🔤 Base64 Output
⬇️
Result will appear here
📚 About Base64
What is Base64?
An encoding scheme that converts binary data into a 64-character ASCII text format. Used to transfer data over media that only supports text.
When is it Used?
Email attachments (MIME), image data URIs in HTML/CSS, JSON Web Tokens (JWT), basic authentication in HTTP headers.
⚠️ Note
Base64 is encoding, not encryption. Encoded data can be easily decoded. Do not use it to secure sensitive data.