Base64 is a widely-used encoding scheme that represents binary data in a readable ASCII string format. It is commonly used in web development for embedding data directly into URLs, CSS, or HTML, as well as in APIs and data transmission protocols. This tool provides a simple and secure interface to both encode plain text into a Base64 string and decode a Base64 string back to its original form. It's an essential utility for developers, testers, and anyone working with data where binary needs to be safely handled as text. All operations are performed client-side for maximum privacy.

To Encode Text to Base64:

1. Select the "Encode" tab.
2. Type or paste the text you want to encode into the left-hand textarea ("Text to Encode").
3. Click the arrow button in the middle to process the text.
4. The Base64-encoded string will appear in the right-hand textarea.
5. Click the "Copy Result" button to copy the encoded string to your clipboard.

To Decode Base64 to Text:

1. Select the "Decode" tab.
2. Paste the Base64 string you want to decode into the left-hand textarea ("Base64 to Decode").
3. Click the arrow button in the middle.
4. The original, decoded text will appear in the right-hand textarea.
5. Click the "Copy Result" button to copy the decoded text.