Base64 Encode / Decode
Encode text to Base64 format or decode Base64 back to readable text. All processing is done in your browser for security.
Encode / Decode Text
Output
What is Base64?
Base64 is an encoding scheme that represents binary data using 64 printable ASCII characters. It uses:
- Uppercase letters (A–Z)
- Lowercase letters (a–z)
- Digits (0–9)
- Special characters: + and /
- Padding character: =
Uses: Email attachments, embedding images in HTML/CSS, data transmission, JSON/XML embedding, and storing binary data in text formats.
Size: Base64-encoded data is approximately 1.33× larger than the original data.