Base64 Encoder/Decoder

Encode and decode Base64 strings safely with support for text and files

Text Encoding

File Support

URL-Safe Variant

Binary Data

Input (Plain Text/File)

Enter text or select a file to encode to Base64

Operation

Variant

File Upload (Optional)

Max file size: 5MB

Text Input

Output (Base64)

Base64 Output

Base64 Encoding Information

Standard vs URL-Safe

Standard: Uses +, /, and = characters
URL-Safe: Uses -, _, no padding (=)
URL-Safe is ideal for URLs and filenames
Standard is the most common format

Usage Tips

Base64 increases data size by ~33%
Perfect for embedding binary data in text
Commonly used in email attachments
File upload supports images, documents, etc.