Free HTML Viewer – Preview HTML Code Online
Preview HTML code with live rendering. Switch between preview and code views. See page statistics. Safe sandboxed iframe. 100% free.
What Is This Tool?
The HTML Viewer lets you paste HTML code and see how it renders in a browser, without creating a local file.
How to Use
Step 1: Paste HTML
Enter your HTML code in the editor.
Step 2: View Preview
See how the HTML renders live.
Step 3: Toggle Views
Switch between preview and code view.
Features
| Feature | Description |
|---|---|
| Live Preview | See rendered HTML instantly |
| Code Toggle | Switch between preview/source |
| Sandboxed | Safe execution in iframe |
| Statistics | Character, line, and tag counts |
Use Cases
Web Development
Test HTML snippets before adding to projects.
Email Templates
Preview HTML email designs.
Learning
Experiment with HTML code and see results.
Code Review
View HTML output from code snippets.
Debug
Troubleshoot rendering issues.
Safety
HTML is rendered in a sandboxed iframe:
- Isolated from the main page
- Limited script execution
- No access to parent window
- Safe to view untrusted code
Supported Content
- Full HTML documents
- HTML snippets
- Inline CSS styles
- JavaScript (sandboxed)
- Images (external URLs)
- SVG graphics
Statistics Provided
- Characters: Total code length
- Lines: Number of lines
- Tags: HTML element count
Frequently Asked Questions
Can it run JavaScript?
Yes, in a sandboxed environment with limited permissions.
Are external resources loaded?
Yes. Images and fonts from external URLs will load.
Is my code saved?
No. All processing is browser-based.
Can I download the HTML?
Use the copy button to copy the code.
Related Tools
- HTML Formatter — Format HTML
- HTML to Text — Extract text
- HTML Minifier — Compress HTML
- Markdown to HTML — Convert markdown
Paste your HTML above to preview it.