Accessing Molkit
Molkit runs entirely in your web browser. The editor lives at molkit.com, and there is nothing to install. This documentation lives separately at docs.molkit.com.
Everything stays on your machine
Molkit is a client-side application. Your structures are not uploaded to a server; they live in the browser tab you are working in.
While you work, Molkit autosaves all of your open tabs to the browser’s local storage, a couple of seconds after each change and on a regular interval as a backup. If you close the page and come back later in the same browser, your tabs are restored. See Tabs and Autosave for details and limits.
Local storage is tied to one browser on one computer. Clearing site data removes it, and it does not follow you to another device.
Saving files for portability
For anything you want to keep or move between machines, save your work as a .mkit file with Ctrl+S or the File menu. In Chrome and Edge, Molkit saves directly to a file on disk and later saves reuse the same file. In Firefox, saving produces a download instead. See .mkit Files.
Browser requirements
Any current desktop browser works. Chrome and Edge support direct file saving through the File System Access API; Firefox uses a download-based fallback.