Secure your email addresses from spam bots with real-time Base64 encoding
Your encoding history will appear here
Base64 email encoding is a technique used to convert email addresses into a Base64 format to protect them from spam bots and email harvesters. These automated programs scan websites looking for email addresses to add to spam lists. By encoding your email in Base64, you make it unreadable to these bots while keeping it fully functional for human visitors.
Type or paste your email address into the input field on the left. You can enter multiple email addresses separated by commas or new lines for bulk processing.
Copy the encoded result using the "Copy Result" button and implement it in your HTML code. The most common implementation is within a mailto link:
<a href="mailto:encoded-email-here">Contact Us</a>
If you receive a Base64 encoded email and need to decode it, simply paste the Base64 string into the input field and click "Decode from Base64". The tool will instantly reveal the original email address.
For maximum protection, combine Base64 encoding with JavaScript decoding. This adds an extra layer that most basic email harvesters cannot bypass, while still maintaining accessibility for legitimate users with JavaScript enabled.
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This tool is 100% free and works entirely in your browser. No data is sent to our servers.