Yes. The editor and learning material are free to use. Gately is open source, and you can read the code on GitHub.
No. Start with two input switches and an AND gate. The interactive lessons explain gates, truth tables, and how to combine them into circuits.
Circuit files are stored locally in your browser. Export a JSON file to keep a backup or move a circuit to another device. Clearing browser data can remove locally saved work.
You can export a circuit as a JSON file and send that file to someone else to import. Sharing through a public circuit link is not available.
Build digital logic with switches, outputs, basic gates, multiplexers, and demultiplexers. Gately evaluates binary states; it does not model analog voltages or physical electronics.