Free HTML live preview

HTML live preview that leads to learning

Prototype markup in the browser, tidy it with HTML tools, then continue into frontend tutorials — not a dead-end editor.

Open HTML runner HTML tools Coding practice

1 Try Run HTML
2 Tool Format & mock
3 Prove Coding / assess

HTML scratchpad

Free run — no login. Rate-limited. Same runner as the multi-language hub.

Source

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>Toolliyo HTML Playground</title>
  <style>
    body { font-family: system-ui, sans-serif; padding: 1.5rem; background: #0f172a; color: #e2e8f0; }
    .card { background: #1e293b; padding: 1.25rem; border-radius: 12px; max-width: 420px; }
    h1 { margin-top: 0; color: #38bdf8; }
  </style>
</head>
<body>
  <div class="card">
    <h1>Hello HTML</h1>
    <p>Edit this markup and click <strong>Preview</strong>.</p>
    <button onclick="alert('It works!')">Click me</button>
  </div>
</body>
</html>

Preview

Press Run to execute.

After you try HTML

Frontend tutorials HTML tools Coding practice

How to use this HTML compiler

Edit the HTML sample (include CSS/JS inline if needed).
Click Preview to render in the sandboxed frame.
Use HTML Formatter when the markup gets messy.
Open frontend tutorials when you are ready to go deeper.

Tips

Keep scripts simple — the preview is sandboxed.
Prefer semantic tags; interviewers notice.
Bootstrap playground is one click away for component layouts.

Tools for this stack

Format, mock, or diff — then come back and re-run.

Full toolbench

HTML Formatter Clean markup when you are prototyping UI snippets. Code Diff Compare snippets side by side before you submit. JSON Formatter Pretty-print API payloads before you paste them into code.

HTML playground FAQ

Does this run on a server?

Preview runs in your browser sandbox. No deploy required.

Can I load external CDNs?

Yes for common CDNs in your HTML. Prefer Bootstrap playground for Bootstrap CDN starters.

Where next after HTML?

HTML tools, frontend tutorials, then coding practice.

Toolliyo Assistant

Ask about tutorials, ebooks, training, pricing, mentor services, and support. I use public site content only—not admin or internal tools.

care@toolliyo.com