Stream vs Zeplin

Stream (Build scalable in-app chat, feeds, and live video with AI moderation capabilities in hours, not weeks.) and Zeplin both appear on the Smoower Developer Ecosystem Index.

Stream (rank #317) holds a narrow lead over Zeplin (rank #430) on the overall Smoower ecosystem score (44 vs 40). The gap of 4 points reflects composite signals across code, docs, community and reach.

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

Stream carries 35,664 GitHub stars across 487 public repos, with 84 repositories active in the last 90 days and 44 external contributors on record. Zeplin shows 1,460 stars across 57 public repos, 8 active in the last 90 days and 4 external contributors. The star gap on its own does not decide the comparison, but Stream's footprint is roughly 24.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Stream is the stronger read for anyone weighting momentum. Zeplin looks better where education 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.