Base64 Encoder Decoder Tool: Complete Guide to Online Text and File Encoding Conversion
Ken
Sep 10, 2025
17 views
about 2 minutes
Use our free Base64 encoder decoder tool to quickly encode and decode text, images, and files. Supports multiple formats with instant conversion, secure and reliable.
What is Base64 Encoding?
Base64 is an encoding method that uses 64 characters to represent arbitrary binary data. It uses A-Z, a-z, 0-9, +, / characters, and = as padding. Base64 encoding is widely used in web development, email transmission, API data exchange, and more.
Applications of Base64 Encoding
- Web Development - Embed images in HTML/CSS
- API Transmission - Transfer binary data in JSON
- Email - Transfer attachments and images
- Data Storage - Store binary data in text format
- Cryptography - As foundation for other encryption algorithms
Features of Our Base64 Tool
- Supports text and file encoding/decoding
- Instant conversion, no waiting
- Supports multiple file formats
- Secure local processing
- Completely free to use
How to Use Base64 Tool
- Choose encode or decode mode
- Input text or upload file
- Click convert button
- Copy result or download file