HTML Viewer Online

A free HTML, CSS & JS editor with live preview, beautifier, and minifier.

As of June 2026, HTML Viewer Online has 332 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.

Usersup 23.4 percent+23.4%
332
332
Ratingno change0%
5.00
1 reviews
Reviewsno change0%
1
Version
2.0
Manifest V3

History

5 snapshots

Tracking since Apr 20, 2026.

345.68304.5263.32Apr 20, 2026Jun 9, 2026
View as table
DateUsersRatingReviewsVersion
Apr 20, 20262695.0012.0
May 5, 20263085.0012.0
May 15, 20263065.0012.0
May 28, 20263345.0012.0
Jun 9, 20263405.0012.0
Now3325.0012.0

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

HTML Viewer Online screenshot 1

About

Unlock Your Web Development Potential with HTML Viewer Online!

Are you a web developer, student, designer, or hobbyist looking for a fast, efficient, and reliable tool to test and edit your code on the fly? Stop wasting time switching between your text editor and browser. HTML Viewer Online is the ultimate web development sandbox, transforming your Chrome browser into a powerful, live coding environment that’s always just a click away.

This is more than just a viewer; it’s a full-featured code editor designed for maximum productivity. It provides a seamless, integrated space to write, test, and refine your HTML, CSS, and JavaScript, all with instant feedback.

Key Features for a Superior Workflow:

Live, Real-Time Preview: The moment you type a line of code, the changes are rendered instantly in a live preview pane. This rapid feedback loop is invaluable for debugging, learning new concepts, and rapidly prototyping designs.

Unified Multi-Language Editor: Manage your entire front-end project in one clean interface. The editor features dedicated, tabbed sections for HTML, CSS, and JavaScript, ensuring your code remains organized and easy to navigate. No more juggling multiple files or windows.

Essential Code Utility Tools:

Code Beautifier: Instantly format and clean up messy, unindented code with a single click. Make your projects readable and professional.

Code Minifier: Optimize your final code for production. Minify your HTML, CSS, and JS to reduce file sizes and improve page load speeds.

Effortless Saving & Downloading:

Save your current project directly to your local machine as a complete HTML file. All your HTML, CSS, and JavaScript is bundled together for easy sharing and portability.

Never lose a great idea or solution again.

Full Offline Functionality: No internet connection is required to use this extension. Whether you're on a plane, in a cafe with no Wi-Fi, or simply prefer to work offline, HTML Viewer Online has you covered. It's a truly portable development tool.

Syntax Highlighting & Error Detection: The advanced editor includes syntax highlighting to make your code more readable and help you spot errors quickly.

Responsive Design Testing: Test how your code looks and behaves on different screen sizes by simply resizing the preview pane. It's an excellent way to ensure your layouts are fully responsive.

Elegant User Interface: A clean, minimalist design with a powerful Dark Mode toggle reduces eye strain and helps you focus on your creativity. The user-friendly interface is intuitive for beginners and powerful enough for seasoned developers.

Who is This Extension For?

Aspiring Developers: An ideal online code editor and learning tool to practice your coding skills with instant visual feedback. Master the fundamentals of web design and development.

Professional Developers: Use it as a quick and powerful code sandbox for testing isolated components, debugging tricky CSS issues, or prototyping new features without needing to fire up a full IDE.

UI/UX Designers: Experiment with CSS layouts, animations, and interactive elements. Visualize your design concepts directly in the browser.

HTML Viewer Online is more than just an extension; it's an essential tool for anyone working with web technologies. Streamline your workflow, increase your productivity, and bring your web ideas to life with a tool built for efficiency.

Technical

Version
2.0
Manifest
V3
Size
167KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
jicmedmlaimimmcbhejglnnbecemlaid
Developer ID
u83dba82fa7d1cb2238354acc8aa5d2b5
Developer Email
[email protected]
Created
Sep 13, 2025
Last Updated (Store)
Sep 13, 2025
Last Scraped
Jun 9, 2026
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 9, 2026.