Is HTML Live Preview free to use?

Yes, HTML Live Preview is completely free. No registration, no account, and no hidden costs — ever.

Is my data safe when using HTML Live Preview?

All processing happens directly in your browser. Your data never leaves your device — nothing is uploaded or stored on our servers.

No. All CheckTown tools work instantly without registration or sign-up.

HTML Live Preview works on any device — desktop, tablet, or phone. The interface adapts to your screen size.

编写 HTML、CSS 和 JavaScript，即时查看实时预览

Ctrl+Enter 运行Ctrl+Shift+C 复制

在沙盒环境中编写 HTML、CSS 和 JavaScript，并实时预览效果。

什么是 HTML 实时预览？

HTML 实时预览是一款浏览器内的代码编辑器，可实时渲染你的 HTML、CSS 和 JavaScript。你每输入一个字符，输出面板都会即时刷新，让你无需在编辑器和浏览器标签页之间来回切换即可获得直观的视觉反馈。