HTML / CSS / JS
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Paste your HTML code in the editor and click Run to instantly see the rendered result.
Paste your HTML code in the editor and click Run to instantly see the rendered result.
Last updated: March 2025 | Site: html-online-viewer.online
Welcome to HTML Online Viewer ("we," "our," or "the Service"), accessible at html-online-viewer.online. We are committed to protecting your privacy and handling any information in a transparent and responsible manner. This Privacy Policy explains what information we collect, how it is used, and what rights you have as a user. By using our website you agree to the terms of this policy.
HTML Online Viewer does not require you to create an account or submit personally identifiable information. The HTML code you paste or write in the editor is never transmitted to our servers — all rendering happens locally in your browser. We may automatically collect basic technical data including your IP address, browser type, operating system, referring URL, and pages visited. This data is used in aggregate only to improve the website.
Your snippets and preferences (dark/light theme, layout) are saved in your browser's localStorage. This data stays on your device and is never sent to us. You can clear it at any time through your browser settings.
We use cookies to improve your experience on our website. Cookies are small text files stored on your device. We use essential cookies to maintain site functionality and preference cookies to remember your settings. We also use advertising cookies served by Google AdSense. By continuing to use this site you consent to our use of cookies as described in our Cookie Policy.
HTML Online Viewer displays advertisements provided by Google AdSense (Google LLC). Google AdSense uses cookies and the DoubleClick cookie to serve ads based on your prior visits to our website and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site. You may opt out of personalised advertising by visiting Google Ads Settings.
Google uses the DoubleClick cookie to serve relevant ads and limit how often you see a given ad. It records your interaction with advertisements on this and other websites. The DoubleClick cookie does not contain personally identifiable information. You can opt out via Google Ad Settings or via www.aboutads.info. For full information on how Google uses data from sites that use its advertising services, visit: policies.google.com/technologies/ads.
We load fonts from Google Fonts CDN. Google may collect anonymised request metadata. Our site may contain links to third-party websites; we are not responsible for their privacy practices.
Code previews run inside a sandboxed <iframe>. Scripts in the preview cannot access cookies, localStorage of the parent page, or make cross-origin requests.
HTML Online Viewer is a general-purpose developer tool not directed at children under 13. We do not knowingly collect personal data from children.
By using HTML Online Viewer you consent to this Privacy Policy and to the use of cookies and Google AdSense advertising as described above. You have the right to access, rectify, or request deletion of any personal data we hold. To exercise these rights, contact us at support@html-online-viewer.online.
We may update this Privacy Policy periodically. Changes are effective when posted. Continued use of the site constitutes acceptance of the updated policy.
Questions about this Privacy Policy? Email us at support@html-online-viewer.online. We respond within 48 hours on business days.
HTML Online Viewer is a free, browser-based tool designed to help developers, students, and designers quickly preview HTML code online — without installing any software or creating an account.
Our tool allows you to paste any HTML code directly into the editor and instantly see the rendered result in a sandboxed live preview panel. Whether you are testing a quick snippet, debugging a layout, or learning HTML for the first time, HTML Online Viewer gives you a fast and hassle-free way to see your code in action.
In addition to HTML, you can preview inline CSS and JavaScript, import local files from your device, export your work, and save reusable code snippets for future use — all in one place.
Developers — Quickly test and debug HTML, CSS, or JavaScript snippets without spinning up a local server or creating a new project.
Students — Learn and experiment with HTML in real time. See exactly how each tag and style affects the output as you type.
Designers — Prototype HTML email templates, UI components, or landing page mockups directly in the browser.
We believe web development tools should be fast, simple, and accessible to everyone. HTML Online Viewer is completely free and works on any device with a modern browser — desktop, tablet, or mobile. No login required, no subscription, no downloads.
Our tool includes a live sandboxed preview, dark mode, fullscreen preview, file import and export, a snippet library, responsive layout for all screen sizes, and multi-language support. All code rendering happens locally in your browser, so your code is never sent to our servers.
We are always working to improve the tool. If you have suggestions, feedback, or questions, please reach out to us at support@html-online-viewer.online. We typically respond within 48 hours.
Have a question, a suggestion, or encountered a technical issue? Our team is happy to help. You can reach us by email and we will get back to you as soon as possible.
For all inquiries — including bug reports, feature requests, or general questions — please send an email to:
support@html-online-viewer.online
We typically respond to all messages within 48 hours. We appreciate your patience and read every message carefully.
To help us assist you faster, please include a brief description of your question or issue, the browser and operating system you are using, and any relevant code or screenshots if applicable.
You are currently on html-online-viewer.online — a free HTML preview tool available to everyone.
Last updated: March 2025 | Site: html-online-viewer.online
Cookies are small text files that are placed on your device (computer, smartphone, or tablet) when you visit a website. They are widely used to make websites work correctly, to improve performance, and to provide information to the website owners. Cookies do not contain viruses or malware and cannot access other files on your device.
HTML Online Viewer uses cookies for the following purposes:
Essential Cookies: These cookies are necessary for the website to function properly. They enable core features such as page navigation and access to secure areas of the website.
Preference Cookies: We store your selected theme (dark or light mode) and layout preferences in your browser's localStorage so that your settings are remembered between visits.
Analytics Cookies: We may use anonymised usage data to understand how visitors interact with our website, which helps us improve the user experience.
Advertising Cookies: We use Google AdSense to display advertisements on our website. Google AdSense uses cookies to serve relevant ads based on your browsing activity on this and other websites.
Our website uses Google AdSense, an advertising service provided by Google LLC. Google AdSense places cookies on your device to help deliver advertisements that are relevant to you and your interests. These cookies track your visits to this website and other websites in order to provide targeted advertising.
Google AdSense also uses the DoubleClick cookie, which enables Google and its partners to serve ads based on your visit to this site and other sites on the internet. The DoubleClick cookie does not contain any personally identifiable information.
You can learn more about how Google uses cookies in advertising at: policies.google.com/technologies/ads
You have the right to accept or decline cookies. You can control and manage cookies through your browser settings. Most browsers allow you to refuse cookies or delete them at any time. Please note that disabling cookies may affect the functionality of this and other websites you visit.
Instructions for managing cookies in popular browsers:
Google Chrome: Settings → Privacy and security → Cookies and other site data
Mozilla Firefox: Settings → Privacy & Security → Cookies and Site Data
Safari: Preferences → Privacy → Manage Website Data
Microsoft Edge: Settings → Cookies and site permissions → Cookies and site data
You can also opt out of personalised advertising by visiting Google Ads Settings or the Digital Advertising Alliance opt-out page.
By continuing to use html-online-viewer.online, you consent to our use of cookies as described in this Cookie Policy. If you do not agree to our use of cookies, please adjust your browser settings accordingly or stop using this website.
We may update this Cookie Policy from time to time. Any changes will be posted on this page with an updated date. Continued use of the website following any changes constitutes your acceptance of the updated policy.
If you have any questions about our use of cookies, please contact us at support@html-online-viewer.online.