AnyTool
Your files never leave your device. All processing happens locally in your browser.

How to encode text to Base64?

Paste your text into AnyTool Base64 Encoder and click Encode. The Base64 output is generated instantly. You can also decode Base64 back to text, or encode/decode URLs.

Detailed Explanation

Methodology

How Base64 Encoding Works

AnyTool Base64 encoder converts text and files to Base64 representation using the browser's native btoa() function for text and FileReader.readAsDataURL() for files. Decoding uses atob(). URL encoding/decoding uses encodeURIComponent/decodeURIComponent.