Simple. Realtime. Fast.

The professional browser-based playground for your web ideas. No setup, no latency, just pure code.

Launch Realtime HTML Editor
No installation required Free for everyone No sign-up required
Zero Latency
Dark Mode
ZIP Export
Instant Preview

Instant Compilation

See your changes as you type. Our high-performance engine ensures the preview window updates with zero lag, providing a seamless creative flow.

File Workspace

Manage multiple HTML files in a single session. Link pages together and build full website prototypes directly in your browser.

Advanced Logging

Includes a built-in JavaScript console. Track errors, log variables, and debug your code without ever needing to open your browser's developer tools.

Master your web workflow.

HTMLEditor.app provides a distraction-free environment for developers, designers, and students. Everything you write is processed locally in your browser, ensuring maximum speed and privacy.

  • Toggleable Editor and Preview panels
  • Horizontal and Vertical layout modes
  • One-click ZIP export for all workspace files
Realtime Code Interface