Online Tool Store
HTML Code Editor
Write HTML, CSS, and JavaScript in tabs with a live sandboxed preview, a console for logs and errors, a tag wizard, and one-click export.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Developer
HTML Code Editor
Workspace
Tag wizard — click to insert into HTML
Console
Console output from the preview will appear here.
Frontend-only preview — the code runs in a sandboxed iframe in your browser; nothing is uploaded or sent to a server.
How the HTML Code Editor works
- Write or paste markup, styles, and script into the HTML, CSS, and JavaScript tabs — or click a tag wizard button (H1, image, iframe, list, table, and more) to insert a ready-made snippet at your cursor.
- Press Run (or just keep typing) to render a live, sandboxed preview next to the editor, and watch console.log output and runtime errors from your script appear in the Console panel below.
- Click Download HTML to save a single self-contained file with your title, styles, and script inlined.
FAQ
Does this publish my HTML?
No. Your code is rendered in a sandboxed iframe entirely in your browser. It is never uploaded, saved to a server, or sent to a third-party service.
Can I see errors and log output from my script?
Yes — the Console panel below the editor shows console.log output and runtime errors from your script as soon as the preview runs.
Can I export my HTML file?
Yes. Click Download HTML to save a single .html file with your CSS and JavaScript inlined and your document title applied, ready to open or host anywhere.
Do I need to install anything or sign up?
No. The editor, live preview, and console all run in your browser tab — there is nothing to install and no account is required.
Can I write CSS and JavaScript, not just HTML?
Yes. Separate CSS and JavaScript tabs sit alongside the HTML tab, and all three are combined in the live preview and in the downloaded file.
How we compare
| Feature | Online Tool Store | Desktop editor | Hosted playground |
|---|---|---|---|
| Focused HTML editing UI | ✓ | ✓ | ✓ |
| No account required | ✓ | ✓ | Varies |
| Browser-only frontend | ✓ | ✗ | Varies |