Convert HTML code to Base64 format instantly. Perfect for embedding HTML in data URIs or encoding for transmission.
Enter your HTML code below to encode it to Base64 format
HTML to Base64 conversion is the process of encoding HTML code into Base64 format. This allows HTML content to be represented as a text string that can be embedded in data URIs, transmitted through APIs, or stored in text-only environments.
This tool converts your HTML code to Base64 and provides both the raw Base64 string and a complete data URI (data:text/html;base64,...) that can be used directly in iframe src attributes or other contexts where inline HTML is needed.
Use data URI in iframe src to embed HTML without external files
Encode HTML email templates for storage or API transmission
Send HTML content through JSON APIs as Base64 strings
Store HTML snippets in databases or configuration files
Yes, all conversion happens entirely in your browser. Your HTML code never leaves your device and is never sent to any server, ensuring complete privacy and security.
Yes! You can convert any HTML content, from simple snippets to complete HTML documents with styles and scripts. The tool will encode everything as-is.
The data URI can be used directly in iframe src attributes like this: <iframe src="data:text/html;base64,..."></iframe>. This renders the HTML without needing a separate file.
Absolutely! This HTML to Base64 converter is completely free with no limitations, registration, or hidden costs.