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Base64 Encoder/Decoder

Text Tools

Convert text to Base64 and back with instant processing

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Enter text above to encode/decode

About Base64 Encoding

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored or transferred over media designed to handle text.

The encoding process converts every 3 bytes (24 bits) of binary data into 4 Base64 characters using a 64-character alphabet (A-Z, a-z, 0-9, +, /).

Common use cases include embedding images in HTML/CSS, encoding authentication credentials in HTTP headers, and encoding binary data in JSON or XML.

Note: Base64 encoding increases data size by approximately 33% due to the conversion process.

This tool performs all encoding/decoding operations entirely in your browser - no data is sent to any server.

The output is updated in real-time as you type, making it easy to quickly encode or decode Base64 strings.

Use the swap button to quickly switch between encoding and decoding modes while preserving your current output as the new input.

AL

Ashley Leslie

Senior Software Developer

I identify complex business challenges and engineer innovative solutions that transform operational efficiency and drive measurable results.

Solving problems through strategic thinking and technical excellence.

Made with ❤️ in Germany

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