About Base64 Encoder & Decoder
Base64 encoding is essential for transmitting binary data over text-based protocols. This tool provides instant, bidirectional conversion between plain text and Base64 format, with full support for UTF-8 characters including emojis and special symbols.
Key Features
- Encode text to Base64 format instantly
- Decode Base64 strings back to plain text
- Full UTF-8 support including emojis and special characters
- Real-time conversion as you type
- Copy results with one click
- Handle large text inputs efficiently
- Error handling for invalid Base64 strings
- 100% client-side processing
How to Use This Tool
- Enter your plain text in the top textarea to encode it
- Or paste a Base64 string in the bottom textarea to decode it
- Click "Encode" to convert text to Base64
- Click "Decode" to convert Base64 back to text
- Use the copy buttons to copy the results
Why Use Base64 Encoder & Decoder?
Base64 encoding is widely used in web development for embedding images in CSS/HTML, transmitting data in JSON/XML, encoding authentication credentials, and storing binary data in text-based formats. This tool makes it easy to encode and decode Base64 data without writing code.
Privacy & Security
This Base64 Encoder & Decoder runs entirely in your browser using JavaScript. Your data is never sent to any server, uploaded, or stored anywhere. All processing happens locally on your device, ensuring complete privacy and security.