Base64 Encoder/Decoder
Encode text to Base64 format or decode Base64 encoded strings with support for file uploads.
Encode Base64
Decode Base64
File Converter
Base64 Encoded Result:
Decoded Result:
Drag & drop file here or click to select
Supports images, documents, and other file types
Base64 Result:
Examples:
Basic Text Encoding
Original: Hello World
Encoded: SGVsbG8gV29ybGQ=
With Unicode Characters
Original: δ½ ε₯½οΌδΈη
Encoded: 5L2g5Li777yM5LiA55qE
Common Uses
- Embedding images in HTML/CSS
- Storing binary data in text databases
- Transferring binary data over text protocols
- Email attachments in MIME format
Key Features
Complete Base64 Support
Full RFC 4648 compliant Base64 encoding and decoding with padding and line wrapping options.
File Encoding
Encode any file to Base64 or decode Base64 back to a file for easy data transfer.
Unicode Support
Perfectly handles text with Unicode characters from any language.
Format Options
Choose from plain text, JSON, or HTML output formats when decoding.
Quick Copy & Download
Easily copy results to clipboard or download as files for immediate use.
Browser-based
Works entirely in your browser without sending data to external servers.
Usage Tips
- Base64 encoding increases file size by about 33% compared to original binary data
- For web images, consider using Data URLs with Base64 encoded images (data:image/png;base64,...)
- When transferring large files, Base64 is not the most efficient method but works well for small to medium data
- Always ensure proper padding with '=' characters when needed for correct Base64 implementation
- Text Tools
- Base64 is not encryption - it's just an encoding scheme for representation, not security