Open edX vs Zulip

Open edX (The community-driven, open-source project powering edX.org and thousands of other online education sites around the world.) and Zulip (Organized team chat) both appear on the Smoower Developer Ecosystem Index.

Open edX (rank #372) holds a narrow lead over Zulip (rank #536) on the overall Smoower ecosystem score (42 vs 36). The gap of 6 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Open edX is slightly ahead of Zulip. On education (docs, guides and learning material for developers), Zulip is slightly ahead of Open edX. On community (issue response, PR reviews and discussion health), Open edX is slightly ahead of Zulip. On reach (how visible the ecosystem is beyond its own repos), Zulip is ahead of Open edX. On momentum (release cadence and how fast the ecosystem moves), Open edX is clearly ahead of Zulip.

Open edX carries 10,654 GitHub stars across 186 public repos, with 100 repositories active in the last 90 days and 91 external contributors on record. Zulip shows 32,299 stars across 67 public repos, 9 active in the last 90 days and 76 external contributors. The star gap on its own does not decide the comparison, but Zulip's footprint is roughly 3.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Open edX is the stronger read for anyone weighting momentum. Zulip looks better where reach is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.