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HTML Playground — Live HTML, CSS & JS Editor With Preview

Live HTML / CSS / JS playground with sandboxed iframe preview. Auto-saves to localStorage. Pure client-side.

Miễn phí Không cần đăng ký Chạy trên trình duyệt Tôn trọng riêng tư Updated

Preview auto-updates 300ms after typing.

Preview

Cách dùng

  1. 1 Edit any pane — HTML, CSS or JS. The preview updates 300ms after you stop typing.
  2. 2 Save snippet to keep your work in localStorage for next visit.
  3. 3 Reset to load the sample again.

Vì sao dùng công cụ này

  • Three editor panes — HTML, CSS, JS — wired into a single live iframe.
  • Snippet persistence via localStorage — close the tab, come back, your code is still there.
  • Sandboxed iframe (allow-scripts only) — JS runs but cannot reach your tools origin.
  • Pure client-side — no server round-trip on every keystroke.

Câu hỏi thường gặp

Can I import external libraries?

Yes — add <code class="font-mono text-xs">&lt;script src="https://…"&gt;</code> tags inside the HTML pane. The iframe loads them on next preview rebuild.

Is the iframe sandboxed?

Yes — we set <code class="font-mono text-xs">sandbox="allow-scripts"</code> and intentionally omit <code class="font-mono text-xs">allow-same-origin</code>, so the preview cannot read this page or its storage.

Where is my work stored?

Only in your browser's <code class="font-mono text-xs">localStorage</code> when you click Save. Nothing is sent to a server.

HTML Playground là gì?

An HTML Playground is a tool that edits HTML, CSS, and JavaScript together and renders the result live in a sandboxed iframe preview. It auto-saves work to the browser's localStorage so code persists between sessions. Being pure client-side, everything runs in the browser with nothing uploaded to a server, making it a private space to prototype frontend snippets.

Tóm tắt

HTML Playground là công cụ lập trình miễn phí của Zerethon Tools. Live HTML / CSS / JS playground with sandboxed iframe preview. Auto-saves to localStorage. Pure client-side. Chạy hoàn toàn trong trình duyệt — không đăng ký, không tải lên.

Danh mục
Lập trình
Giá
Miễn phí
Quyền riêng tư
Chạy trên trình duyệt
Đăng ký
Không cần

Quyền riêng tư

Dữ liệu của bạn không bao giờ rời khỏi trình duyệt trừ khi được nêu rõ. HTML Playground chạy hoàn toàn phía client — không tải lên máy chủ, không ghi log, không theo dõi dữ liệu bạn nhập.

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