Grammarly vs Zeplin

Grammarly (Millions of users rely on Grammarly's AI-powered products to make their messages, documents, and social media posts clear, mistake-free, and impactful.) and Zeplin both appear on the Smoower Developer Ecosystem Index.

Zeplin (rank #430) holds a narrow lead over Grammarly (rank #602) on the overall Smoower ecosystem score (40 vs 34). 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), Zeplin is slightly ahead of Grammarly. On education (docs, guides and learning material for developers), Zeplin is clearly ahead of Grammarly. On community (issue response, PR reviews and discussion health), Zeplin is slightly ahead of Grammarly. On reach (how visible the ecosystem is beyond its own repos), Grammarly is ahead of Zeplin. On momentum (release cadence and how fast the ecosystem moves), Grammarly is ahead of Zeplin.

Grammarly carries 4,355 GitHub stars across 23 public repos, with 0 repositories active in the last 90 days and 0 external contributors on record. Zeplin shows 1,460 stars across 57 public repos, 8 active in the last 90 days and 4 external contributors.

Grammarly is the stronger read for anyone weighting reach. 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.