Base64 Encoder/Decoder
Convert text to Base64 and Base64 to text instantly. Perfect for encoding data, images, and API communications.
File Conversion
Encode File to Base64
Convert any file to Base64 string instantly
No file selected
Decode Base64 to File
Convert Base64 string or file back to original file
No file selected
Or uses Base64 from output field
Text Encoding
Encode text to Base64 and decode Base64 back to readable text.
File Support
Convert files to Base64 and decode Base64 strings back to files.
One-Click Copy
Copy encoded/decoded results to clipboard with a single click.
What is Base64?
How Base64 Works
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It encodes every 3 bytes of binary data into 4 ASCII characters.
- ā¢ Uses 64 different ASCII characters (A-Z, a-z, 0-9, +, /)
- ā¢ Increases data size by approximately 33%
- ā¢ Commonly used for email attachments and data URIs
Common Use Cases
- ā¢ Embedding images in HTML/CSS
- ā¢ API authentication (Basic Auth)
- ā¢ Storing binary data in text files
- ā¢ Email attachments