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HTML Viewer

View and preview HTML code online, instantly

Paste your HTML or upload a file and our free online HTML viewer renders it live in a preview pane beside the code. View, read, and edit any HTML file and see your changes the moment you make them, on desktop, tablet, or mobile, with no install and no signup required.

  • Real-time HTML rendering

    Experience the power of instant feedback with real-time HTML rendering. As you type or paste HTML code into the viewer, see the results immediately in the preview pane.

  • Cross-platform compatibility

    Our HTML Viewer is designed to be fully responsive and work seamlessly across all devices. You can access and use the viewer without losing functionality on desktop, tablet, or smartphone devices.

  • Secure and private code handling

    We prioritize your privacy and security. Unlike other online tools, our HTML Viewer does not store your code. Once you close the browser or navigate away, your code is gone, ensuring that your work remains confidential and secure at all times.

How to use the HTML online viewer

  • 1

    Paste or Upload: Paste your HTML code into the editor, or open an .html file from your computer.

  • 2

    View Instantly: Instantly see the rendered output in the preview pane.

  • 3

    Edit and Save: Make changes to your code and watch it update in real time. You can easily save or share your final code on the Static app.

Supported file types

Open a file straight from your computer, or paste raw markup into the editor. The HTML viewer renders these formats live in the preview:

.htmlStandard HTML web pages .htmThe short HTML extension .xhtmlXHTML documents .svgSVG vector images .txtPlain text that holds HTML

Inline CSS and JavaScript inside your HTML run live in the preview too, so a complete single-file page renders exactly as it would in a browser. You can also paste code directly, and everything stays in your browser, so your file never leaves your device.

Working with a standalone file of another type? Use our XML viewer for XML, or the CSS formatter and JS formatter for CSS and JavaScript.

What is an online HTML viewer?

An online HTML viewer is a browser-based tool that takes raw HTML and shows you the rendered page, the way a browser would display it, right next to the source code. Instead of saving a file and opening it locally, you paste your markup or open an .html file and get an instant, live preview. It doubles as an HTML reader for quickly opening and reading a file someone sent you, and as a lightweight editor when you want to tweak the code and watch the result update in real time.

Because everything runs in your browser, there is nothing to install and your code never leaves your device. That makes it a fast, private way to view HTML online, preview a snippet, or check how an HTML page renders before you publish it.

When to use an HTML viewer

Reach for the HTML viewer whenever you need to see rendered output without a full development setup:

  • Preview an HTML snippet or a full page before you host it.
  • Open and read an .html file someone shared with you, or an exported HTML email.
  • View the HTML code and its rendered result side by side to debug a layout.
  • Check how a page looks at desktop, tablet, and mobile widths.
  • Learn HTML by editing the code and watching the preview update instantly.

When your page looks right, you can host your HTML online for free in one click, with a free domain and SSL included, no server setup required.

How the Static.app HTML viewer compares

CodePen, JSFiddle, and W3Schools are code playgrounds, and CodeBeautify and HTML-Online are online HTML tools. Each is useful in its own way, but the Static.app difference is that once you have opened and previewed an HTML file, you can publish it as a live hosted website on your own custom domain.

Static.app CodePen JSFiddle W3Schools CodeBeautify HTML-Online
Open or upload an HTML fileThe code playgrounds (CodePen, JSFiddle, W3Schools) are paste-and-write editors, not file openers. CodeBeautify and HTML-Online do open a local file. Yes No No No Yes (+ URL) Yes
Live rendered previewEvery tool here renders output live; W3Schools and CodeBeautify update on a Run action, the others as you type. Yes Yes Yes Yes Yes Yes
Edit with syntax highlighting Yes Yes Yes Yes Yes Yes (WYSIWYG + source)
Use without an accountCodePen removed anonymous saving in 2019, so keeping your work needs a login. JSFiddle lets you save and share anonymously, but those fiddles are temporary. W3Schools, CodeBeautify, and HTML-Online are all free to use with no account. Yes View only Yes (saves expire) Yes Yes Yes
Shareable linkStatic.app publishes the file as a live hosted website with a free subdomain and SSL. CodePen and W3Schools need an account to keep a link; JSFiddle anonymous saves are temporary; CodeBeautify saves a snippet page on its own domain; HTML-Online has no share option. Only Static.app gives you a real website on your own custom domain. Publish as a real hosted website Account required Yes (temporary if anonymous) Login to save Yes (on their domain) No
Dark modeCodePen offers dark editor themes; JSFiddle is dark by default; W3Schools has a toggle; CodeBeautify has a beta dark mode; HTML-Online has none. Yes Yes Yes (default) Yes Yes (beta) No
Mobile-friendlyThese multi-pane editors work on mobile but feel cramped; full editing is really desktop-oriented. Yes Limited Limited Limited Limited Limited
Best for Viewing, previewing and hosting HTML files Building front-end experiments and demos Testing and sharing code snippets Learning HTML, CSS and JS Beautifying and previewing HTML snippets WYSIWYG editing and cleaning HTML

Each of these tools is good at what it was built for: CodePen, JSFiddle, and W3Schools are playgrounds for writing code in panes, while CodeBeautify and HTML-Online open and preview an existing HTML file. What none of them do is publish your file as a website. The Static.app difference is workflow: once your HTML looks right, you put it online on your own custom domain, with free SSL, in one click.

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Frequently asked questions

What is an HTML viewer?

An HTML viewer is an online tool that allows you to view and edit HTML code directly in your browser. It provides a real-time preview of how your HTML code will render on a webpage, making it an essential tool for developers, designers, and learners who want to experiment with or debug their HTML code without needing a full development environment.

How do I preview HTML online?

To preview HTML online, paste your HTML code into the editor or upload an .html file. The viewer renders a live HTML preview in the pane beside your code and updates it in real time as you type, so you can see exactly how the page will look. You can also switch the preview between desktop, tablet, and mobile widths, or open it in a new tab.

Can I use this as an HTML reader to open an HTML file?

Yes. Use it as an HTML reader by uploading or pasting any HTML file to instantly read its content and see the rendered page, with no browser extensions or software needed. It is handy for quickly reading an HTML email, a saved web page, or a code snippet someone shared with you.

How do I open an HTML file online?

Click "Open HTML file" and choose the .html file from your computer, or drag it straight into the editor, or just paste the code directly. The HTML viewer loads the file, shows the source, and renders the live page in the preview pane, so you can open and view an HTML file online without installing anything or changing your browser settings.

Is the HTML viewer free to use?

Yes, the Static.app HTML viewer is completely free to use. You can access it from any device with an internet connection, and there are no hidden costs or limitations.

Do I need to download or install anything to use the HTML viewer?

Our HTML viewer does not require downloads or installations. It is a fully online, browser-based tool, meaning you can start using it immediately without setting up any software.

How do I view an HTML file using the HTML viewer?

Copy and paste your HTML code into the provided text area to view an HTML file using the HTML viewer. The viewer will automatically render the code, showing you how the page would appear in a browser. Alternatively, you can upload an HTML file directly into the viewer for instant rendering.

How do you view the HTML code and its rendered output?

In the Static.app HTML viewer, you can view the HTML and the rendered output side by side. As you type or edit the HTML code in the text area, the rendered output will update in real-time in the preview pane. This allows you to immediately see how changes to the code affect the webpage.

How do I see HTML in Chrome?

If you want to see the HTML code of a webpage in Chrome, right-click on the page and select "View Page Source" to see the raw HTML. Alternatively, use Chrome's Developer Tools by right-clicking and selecting "Inspect" to see and edit the HTML in real-time. You can also paste the HTML code into our HTML viewer for a more user-friendly and interactive experience.

Can I edit HTML code in the viewer?

Yes, you can edit HTML code directly in the viewer. Any changes you make will be instantly reflected in the preview pane, allowing you to test different code snippets and see their effects immediately.

How do I display an HTML page using the HTML viewer?

To display an HTML page, paste HTML code into the viewer, and it will render the page instantly. If you have a complete HTML file, you can also upload it to the viewer. For hosting and displaying your HTML page online, consider using a service like Static.app, which provides easy and reliable static HTML hosting.

Is my HTML code safe and private?

Yes, your HTML code is safe and private. Our HTML viewer does not store your code on any server; it remains in your browser session only. This ensures that your work is kept confidential and secure.

Does the HTML viewer support all versions of HTML?

Our HTML viewer supports all versions of HTML, including legacy versions and the latest HTML5 standards. Whether working on an older project or experimenting with new features, our viewer has you covered.

Can I use the HTML viewer on mobile devices?

Absolutely! Our fully responsive HTML viewer works seamlessly on desktops, tablets, and smartphones. You can view and edit HTML code on the go without any issues.

How do I share the HTML code I've created or edited?

Once you've created or edited your HTML code, you can easily share by copying it and sending it to others. If you want to share a live version of your page, you can host your HTML file on Static.app, which allows you to generate a public URL for your static HTML content.

Can I use the HTML viewer for learning and practicing HTML?

Yes, the HTML viewer is an excellent tool for learning and practicing HTML. It offers an interactive environment where you can see the immediate effects of your code changes, making it easier to understand how HTML works. It's perfect for beginners who want to experiment and gain hands-on experience.

What are the limitations of the HTML viewer?

While our HTML viewer is powerful, it does have some limitations. For example, it's designed for basic to intermediate HTML editing and may not support advanced features in full-fledged Integrated Development Environments (IDEs). Additionally, large or complex projects might require a more robust development environment or hosting services like Static.app for better management and deployment.

What is the best free HTML viewer online?

The best free HTML viewer is one that opens an actual .html file and renders it live next to the code, with no signup or install. The Static.app HTML viewer does exactly that: drag in or paste a file, see the rendered page in a side-by-side preview, edit with syntax highlighting, switch between desktop, tablet, and mobile widths, and toggle dark mode, all for free. Playground editors like CodePen, JSFiddle, and W3Schools are great for writing snippets from scratch, but they are built around code panes rather than opening an existing HTML file.

How is the Static.app HTML viewer different from CodePen or JSFiddle?

CodePen and JSFiddle are code playgrounds: you write HTML, CSS, and JavaScript in separate panes to build and share snippets. The Static.app HTML viewer is built to open a real .html file, preview it live beside the source, and then publish it as a live hosted website with a free subdomain and SSL. So if you want to author a quick front-end demo, a playground is a great fit; if you want to open, read, or preview an existing HTML file and put it online, the Static.app HTML viewer fits the workflow better. It also needs no account to view and edit.

Can I open an existing HTML file in an online viewer without signing up?

Yes. The Static.app HTML viewer lets you open or drag in an .html file (or paste the code) and see it rendered instantly, with no account and nothing to install. Your code stays in your browser session. When the page looks right, you can publish it as a live hosted website in one click, with a free subdomain and SSL included.