Encode and decode Base64 strings with support for text, images, and files. Real-time conversion with multiple encoding options.
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format.
Common uses: Email attachments, embedding images in HTML/CSS, storing binary data in JSON, API responses.
Size overhead: Base64 encoding increases data size by approximately 33% due to the 6-bit to 8-bit conversion.
Supported formats: Text, images, documents, and any binary file type.
Encode and decode text strings with real-time conversion
Encode any file type including images, documents, and binaries
Preview images before encoding and after decoding
One-click copy to clipboard for quick sharing
Download decoded files directly to your device
Real-time validation and error detection
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode binary data for transmission over text-based protocols.
Base64 encoding converts every 3 bytes of binary data into 4 bytes of ASCII text, resulting in approximately 33% size increase. This is necessary to represent binary data as text.
You can encode any file type including images (JPG, PNG, GIF), documents (PDF, DOC), videos, audio files, and any other binary data. The tool supports all file formats.
Yes! All encoding and decoding happens locally in your browser. Your files and data never leave your device, ensuring complete privacy and security.
Start using our comprehensive Base64 encoder/decoder. Support for text, files, and images with real-time conversion and validation.