Base64 Encode Online Tool

How to Use This Base64 Encoder Tool

Enter your text in the input box above
Click the "Encode to Base64" button
The encoded result will appear in the output box
Use the "Copy" button to copy the result to your clipboard

What is 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 is a need to encode binary data that needs to be stored and transferred over media designed to deal with text.

Common Uses of Base64 Encoding

Encoding images for web pages (data URIs)
Encoding binary files for email attachments
Storing complex data in JSON or XML
Basic obfuscation of sensitive data
Encoding authentication credentials

About Our Base64 Encoding Tool

Our free online Base64 encoder provides a simple, fast, and secure way to convert any text or string to Base64 format. The tool runs entirely in your browser, which means your data never leaves your computer, ensuring complete privacy and security.

Why Use Our Base64 Encoder?

No data transfer - All processing happens in your browser
Instant results - Get your encoded text immediately
No registration required - Use the tool freely without signing up
Mobile-friendly - Works on all devices and screen sizes
Completely free - No hidden charges or limitations

Base64 Encoding Technical Details

Base64 encoding works by dividing the input bytes into groups of 3 bytes (24 bits) and then representing each 24-bit group as four 6-bit Base64 digits. Each 6-bit value is mapped to a specific character in the Base64 alphabet (A-Z, a-z, 0-9, '+', and '/'). If the input isn't a multiple of 3 bytes, padding characters ('=') are added to make the output length a multiple of 4.