Is my HTML sent to any server?

No. All rendering happens entirely in your browser using a sandboxed iframe and the html2canvas library. Your HTML code never leaves your device.

Why does PNG look better than JPG for this use case?

PNG uses lossless compression, so text, sharp edges, and transparent areas are preserved perfectly. JPG applies lossy compression that can blur fine details and does not support transparency.

Why does my output look slightly different from a real browser render?

html2canvas re-draws the DOM onto a canvas element. Some advanced CSS features such as complex gradients, filters, or fonts loaded via @import may render slightly differently. For best results, use inline styles and web-safe fonts.

Can I include external images in my HTML?

External images may be blocked by CORS policies. For reliable output, embed images as Base64 data URIs directly in your HTML (e.g. <img src="data:image/png;base64,...">).

What canvas width should I use?

The canvas width controls how wide the rendered area is before capture. Use 800 px for standard web content, or match your target image width. The height adjusts automatically to fit the content.

Does PNG support transparency?

Yes. PNG supports an alpha channel, so if your HTML has a transparent or semi-transparent background, those areas will be preserved in the downloaded file.

HTML to PNG Converter

Name: HTML to PNG Converter
Availability: InStock
Author: Nham Vu

Paste any HTML snippet, preview it live, then download the rendered result as a lossless PNG image.

HTML Input

Export Settings

Canvas Width (px)

Live Preview

Click Render Preview to see your HTML here

Done!

Summary

Paste any HTML snippet, preview it live, then download the rendered result as a lossless PNG image.

How it works

Paste your HTML code into the editor on the left.
Optionally adjust the canvas width to control how wide the rendered area is.
Click "Render Preview" to display the HTML in a sandboxed iframe.
The tool uses html2canvas to capture the rendered output onto an internal canvas.
Click "Download PNG" to save the lossless PNG file directly to your device.
No data is sent to any server — the entire process runs in your browser.

Use cases

Capture styled HTML email templates as lossless images for client approvals.
Export UI components or design prototypes as shareable PNG screenshots.
Create social media images from custom HTML and CSS layouts.
Generate product card or banner mockups without a design app.
Save rendered HTML reports or data tables as portable PNG images.
Produce transparent-background PNG assets from inline-styled HTML.
Quickly screenshot HTML tables or data visualizations for documentation.
Archive rendered HTML widgets as images for version-controlled design libraries.

Frequently Asked Questions

Last updated: 2026-06-25 · Reviewed by Nham Vu