Base64 Encoder & Decoder – Free Online Tool
Encode and decode Base64 strings instantly with our free online tool. Perfect for developers working with data encoding, APIs, data URIs, and web applications. Switch between encoding and decoding modes with a single click.
Base64 is a binary-to-text encoding scheme commonly used to encode binary data for transmission over text-based protocols like HTTP, email, and JSON APIs.
✨ Key Features
- Instant Conversion: Real-time encoding and decoding
- Switch Modes: Toggle between encode and decode easily
- Copy & Download: Save results with one click
- No Character Limit: Handle large text and data
- Client-Side Processing: Your data never leaves your browser
📋 Common Use Cases
- Encoding email attachments and MIME content
- Creating data URLs for images and files
- API authentication tokens and credentials
- Storing complex data in JSON or XML
- Embedding binary data in HTML/CSS
- Transferring data between systems
🔧 How to Use
- Select Encode or Decode mode
- Paste your text or Base64 string in the input field
- Get instant results in the output field
- Copy or download the result