Base64 Encoder & Decoder
Convert text and files to Base64 format or decode Base64 back to original content. Supports file upload, real-time conversion, and detailed statistics.
- • Use "Swap Mode" to quickly switch between encoding and decoding
- • "Load Sample" provides example data to test the converter
- • File upload supports any file type for Base64 encoding
- • Base64 is commonly used for data URLs and email attachments
Statistics will appear here once you add input
Powerful Base64 Conversion Features
Text & File Support
Encode text input or upload any file type for Base64 conversion. Supports images, documents, and binary files.
Bidirectional Conversion
Encode text/files to Base64 or decode Base64 back to original content with instant mode switching.
Real-time Validation
Instant validation of Base64 format with detailed error messages and format checking.
File Information
Detailed file metadata including size, type, and modification date for uploaded files.
Conversion Statistics
Comprehensive statistics including size changes, compression ratios, and efficiency metrics.
Export & Share
Copy results to clipboard or download as files with proper file extensions and formats.
Common Use Cases
Web Development
- • Data URLs for embedding images in CSS/HTML
- • API request/response encoding
- • JSON data transmission
- • Authentication tokens
Data Processing
- • Email attachment encoding
- • Binary data storage in databases
- • File transfer over text protocols
- • Configuration file encoding
About Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used when there's a need to encode binary data for storage or transmission over media designed to deal with textual data.
The encoding process converts every 3 bytes of binary data into 4 characters from a 64-character alphabet (A-Z, a-z, 0-9, +, /), which results in approximately 33% size increase.