Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings. Supports file encoding and image preview.
Text / File
Base64 Output
🔄
Encode & Decode
Both directions
📁
File Support
Encode any file
🖼️
Image Preview
View decoded images
🔒
Private
Client-side only
What is Base64?
Base64 is a binary-to-text encoding scheme that converts binary data into ASCII characters. It uses 64 characters (A-Z, a-z, 0-9, +, /) to represent data, making it safe for transmission in text-based formats like JSON, XML, and emails.
Common Uses
- ✅ Embedding images in CSS/HTML as data URLs
- ✅ Storing binary data in JSON/XML
- ✅ Email attachments (MIME encoding)
- ✅ API data transmission
- ✅ JWT tokens