Cal.com, Inc.

Cal.com, Inc. ranks 371st overall in the developer tools category with a composite score of 44 out of 100. The organization describes itself as Scheduling infrastructure for absolutely everyone, which frames how developers first encounter the brand on GitHub, in package registries and in search results.

Its documentation and learning material and code quality come across as middling, with room to improve, and are what most developers will notice first when they land on the organization. By contrast, its developer experience and shipping velocity look minimal today, which is the clearest area where a small amount of focused work would visibly move the needle. Taken together, the picture is of a company whose public developer surface is neither uniformly polished nor uniformly weak, and where different audiences (contributors, integrators, evaluators) will likely form very different first impressions depending on which door they walk through.

Cal.com, Inc. maintains 43 public repositories on GitHub, built primarily in TypeScript, Python and Shell, which together have collected 51,459 stars and drawn contributions from 220 developers outside the core team, 7 of those repositories have seen commits in the last 90 days, a useful proxy for how much of the codebase is genuinely alive rather than archived.

For anyone evaluating Cal.com, Inc. as a technology choice, weighing a contribution, integrating the APIs, or comparing it against similar companies in the space, the sections below break down each of these signals in detail and link straight through to the underlying repositories, documentation and community threads that inform the score.