js.org is a domain registry service that provides free JavaScript-themed subdomains for GitHub Pages sites and other web hosting providers.
The service solves the problem of obtaining a memorable, branded domain for JavaScript projects by offering free subdomains under the js.org domain. Users register their desired subdomain by setting up their hosting (GitHub Pages or another provider that supports CNAME records), configuring their site with the chosen subdomain, and submitting a pull request to add their domain to the registry. The registry then handles DNS configuration to route the subdomain to the user's site.
Developers should choose this service if they want a professional-looking, JavaScript-community-aligned domain without purchasing a separate registration. It works well for personal projects, open-source repositories, and portfolio sites hosted on GitHub Pages or compatible providers. The service requires that hosting support custom domains via CNAME records. The README notes that new subdomain requests are temporarily paused until mid-September 2026, so prospective users should check current availability before planning adoption.
The project's maintainers respond to issues and pull requests within hours. Work in the issue tracker centers on questions, important matters, and enhancement requests.
