RENDERED, SANDBOXED, YOURS
UtilitiesHTML Viewer — your HTML, rendered safely offline
Open one HTML file or an entire project folder — pages, styles, scripts and assets — rendered in a sandboxed frame, with a file tree to navigate it all.
Runs locally in your browser. Nothing is uploaded.
Static sites, saved pages, downloaded documentation, your own little experiments — HTML wants to be seen rendered, not read as source. The HTML viewer renders it: open a single file or a whole folder, and the pages appear as pages, with the styles applied and the scripts running, inside a sandboxed frame in your browser.
Folders are the real use case, because HTML rarely travels alone. Open the project directory and the file tree appears beside the preview — navigate the pages, inspect the structure, hop between the CSS and the pages that use it. It is a way to explore a static site that has never needed a server.
The sandbox is the responsible middle ground: pages render with their behaviour intact but contained — no access beyond what you opened, no surprises beyond what the folder contains. And since everything is local, it works on a plane, in a basement, or wherever the wifi has given up.
Free, no account, nothing uploaded. The site you are previewing stays between you and the folder it lives in.
What you can do
The parts people actually reach for.
Single files or folders
One saved page, or a whole project with its assets.
File-tree navigation
Move through the site's pages and structure visually.
Rendered, not read
Styles applied, scripts running — HTML as it was meant to be seen.
Sandboxed frames
Behaviour contained; nothing beyond the opened folder.
Works offline
A local viewer for local files — the network is uninvolved.
Free, no account
Open and browse; that is the whole arrangement.
How it works
Three steps, no detours.
Open the file or folder
A single HTML file, or the project directory with everything in it.
Browse the tree
Navigate pages and assets; the preview follows.
Inspect and explore
See the site rendered, sandboxed, entirely on your machine.
Questions, answered
The ones people ask first.
Can it open a folder of files?
Yes — the whole project: HTML, CSS, JavaScript and assets, with a file tree to navigate.
Is it safe to open unknown HTML?
Reasonably — pages render in a sandboxed frame, contained to the folder you opened.
Does it need a server?
No. It is a fully local viewer; offline works fine.
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One workspace, 44 tools — all free, all local.
Runs locally in your browser. Nothing is uploaded. · or browse all 44 tools