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Molkit

Accessing Molkit

Open molkit.com in a current desktop browser such as Chrome, Edge or Firefox. The editor loads in the page, and there is nothing to install.

Where your work is stored

Molkit runs in your browser, and your documents are not uploaded to a server. One feature does contact an outside service: when you select a molecule, Molkit sends its SMILES string to PubChem to show the compound name in the status bar. See PubChem Names. Calculating an electrostatic potential map sends the molecule to a helper program that you start on your own computer, not to an outside server. See Electrostatic Potential Maps.

As you work, Molkit auto-saves every open tab to the browser’s storage about one second after each change, with periodic backup saves on a timer. Close the page and open it again later in the same browser, and your tabs come back. Tabs, Auto-Save & Recovery explains the details and the limits.

That stored copy belongs to one browser profile on one computer. Clearing the site’s data deletes it, and it does not follow you to another device.

Saving a file you can keep

To keep a drawing, or to move it to another computer, save it as a .mkit file with Ctrl+S or File > Save. The two browser families behave differently:

  • Chrome and Edge write to a file on disk, and later saves update that same file.
  • Firefox cannot write to a file in place, so every save downloads a new copy.

.mkit Files covers saving and opening in full.

Next: Your First Molecule