Grammarly vs Slab

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 Slab (Making the workplace a source of learning and purpose through knowledge-sharing. We're hiring!) both appear on the Smoower Developer Ecosystem Index.

Slab (rank #455) holds a narrow lead over Grammarly (rank #602) on the overall Smoower ecosystem score (39 vs 34). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

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. Slab shows 49,433 stars across 28 public repos, 0 active in the last 90 days and 8 external contributors. The star gap on its own does not decide the comparison, but Slab's footprint is roughly 11.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Grammarly is the stronger read for anyone weighting momentum. Slab looks better where community 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.