Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to text. Supports file encoding for images and documents.
Populardeveloper tools
base64encodedecodeencoderdecoder
How It Works
Base64 Encoder / Decoder
Output
About Base64
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format.
Uses 64 characters: A-Z, a-z, 0-9, +, / (with = for padding).
Common uses: Email attachments, embedding images in CSS/HTML, API data transfer, JWT tokens.
Size increase: Base64 encoded data is ~33% larger than the original binary data.
File encoding: Drag and drop a file to encode it as a data URI (data:image/png;base64,...).
All processing happens locally in your browser. Your data is never sent to any server.
How to Use
- Select or drag and drop your file(s) into the upload area
- Adjust settings if available (quality, dimensions, etc.)
- Click the process/convert button
- Download the result
Features
- Completely free - no registration required
- Processed locally in your browser - files never uploaded
- Works offline once loaded
- Supports multiple file formats
- Fast processing with no server delays
Advertisement
Ad placeholder - replace with real ad network
Frequently Asked Questions
Can I encode files?
Yes, drag and drop images or documents to encode them to Base64.