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How to Convert Base64 to HTML - Step by Step Guide

Step 1

Paste Base64 Data

Start by pasting your Base64 encoded HTML data into the input area. The converter accepts both raw Base64 strings and data URIs.

Raw Base64: Paste plain Base64 encoded text directly
Data URI: Automatically handles data:text/html;base64, prefix
Try sample: Click "Sample" to test with example HTML data
Step 2

Automatic Conversion

The tool automatically decodes your Base64 data to HTML format as you type. You'll see the decoded HTML code with syntax highlighting.

Instant decoding: Real-time conversion as you type
Syntax highlighting: HTML code displayed with color coding
Validation: Checks if Base64 data is valid HTML
Step 3

Copy or Download HTML

Once decoded, you can copy the HTML code or download it as an .html file ready for use in web editors or browsers.

Copy to clipboard: One-click copying for quick use
Download as file: Save as .html file for editing
Ready to use: Perfect for email templates and web development

What is Base64 to HTML Conversion?

Base64 to HTML conversion decodes Base64 encoded strings back into HTML documents. This is useful for extracting HTML from encoded API responses, email templates, or database storage.

HTML encoding is common in email systems, data URLs, and CMS platforms that store HTML content as Base64 for security and compatibility.

Frequently Asked Questions

How do I decode Base64 to HTML?

Simply paste your Base64 encoded data into the input area. The tool automatically decodes it to HTML format, showing the complete markup with syntax highlighting.

Is my HTML data secure?

Absolutely! All Base64 decoding happens entirely in your browser using client-side JavaScript. No data is sent to any server, ensuring complete privacy.

Can I edit the decoded HTML?

The output displays HTML code with syntax highlighting. To edit the HTML, copy the code to a text editor or download the file and open it in an HTML editor.

What formats does this converter accept?

The converter accepts raw Base64 encoded strings and data URIs. If your data includes the data:text/html;base64, prefix, the tool automatically removes it before decoding.

Is this Base64 to HTML converter free?

Yes, completely free with no size limits, no registration required, and unlimited conversions with full privacy protection.