Online HTML Viewer
Edit HTML & CSS in Real-Time with Lightning Speed.
Online HTML Viewer launched on April 30, 2025 with 6 votes. The site was still online in September 2026, 1 year on.
What it does
A fast, web-based HTML & CSS editor with real-time preview. Features split-screen layout, syntax highlighting, auto-complete, and fullscreen mode.
Instantly edit & preview HTML/CSS with our real-time Online HTML Viewer. Features live updates, syntax highlighting, auto-complete & file options. Free & fast!
Online HTML Viewer is basically a small coding space that runs inside your browser. You can type HTML, CSS, or JavaScript into it and the preview appears right away. No setup, no downloads, nothing weird to configure. You just open the page and start playing with code. You don't have to refresh anything or wait for it to build. You just type and boom, it's already there. It's kind of nice because you stop thinking about the process and just keep trying stuff. The page itself is split in half. Your code stays on the left and whatever you're making shows up on the right. After a bit you forget about the split and just fiddle with whatever you're building, like if you're testing tiny ideas or…from onlinehtmlviewer.com
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