Open source alternatives to Framer

By GitHub stars it is Onlook, with 27,191 stars and a commit on 21 Oct. Choose Onlook when you want open source code you can run and change yourself. Next come Webstudio (9,169 stars) and Plasmic (7,167 stars).

Yes. The code of all 6 is public under Apache 2.0, AGPL 3.0 or MIT, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.

Start from the job you use Framer for. Choose Webstudio when you want every CSS property in a visual editor and the option to export the site and host it yourself. Choose Frappe Builder when your pages should list records from a Frappe or ERPNext database and publish as script-free HTML.

5 of the 6: Webstudio, Plasmic, Silex, Frappe Builder and Ycode. Each tool's page says what it needs to run.

All 6 we track had a commit in the last 30 days, among them Onlook, Webstudio, Plasmic and Silex. A recent commit shows the project is kept up, not that it will stay that way.

MIT (3), AGPL 3.0 (2), Apache 2.0 (1). MIT, BSD and Apache let you change and reuse the code freely. GPL and AGPL ask you to share your changes under the same licence when you give the software to others, and AGPL also counts letting people use it over a network.

The hosting. Framer's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.