Hi I'm Justin Halsall,

Based in Amsterdam and core-team member of the open source rrweb project.
rrweb, rrdom, rrweb-player, rrweb-snapshot and all the other rrweb sub-projects and plugins are MIT licensed open source projects and completely free to use. The tremendous amount of effort needed to maintain the projects and coordinate the community efforts is only made sustainable thanks to the generous financial backing of our sponsors and backers.

Sponsoring as a Business

If you are using rrweb to build a revenue-generating product, it makes business sense to sponsor its development: it ensures the projects that your product relies on stays healthy and actively maintained.