Edit and preview
Use Simple for one HTML document. Use Files for a project with HTML, CSS, JavaScript and assets in folders. The preview updates as you edit.
Import and save
Import HTML or ZIP with the buttons or by dragging it into the editor. Export HTML, ZIP or a local folder when your browser supports it.
Local storage
Files are processed in your browser. Theme, layout and editor recovery use local browser storage. Export a copy to keep your work; clearing browser data removes recovery.
Project preview
Files mode requires HTTPS or localhost. Use browser-ready code; projects that need a server or a build must be prepared before import. Scripts and resources in the preview can access the Internet.
Keyboard shortcuts
Ctrl + ZUndo
Ctrl + YRedo
Ctrl + SExport
Ctrl + OImport
Ctrl + POpen full page
Ctrl + +/−Editor zoom
Ctrl + 0Reset zoom
On macOS, use ⌘ instead of Ctrl.