Excalidraw vs SlackAPI

Excalidraw (Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.) and SlackAPI (https://docs.slack.dev/tools) both appear on the Smoower Developer Ecosystem Index.

SlackAPI (rank #47) holds a narrow lead over Excalidraw (rank #103) on the overall Smoower ecosystem score (61 vs 55). 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), SlackAPI is clearly ahead of Excalidraw. On education (docs, guides and learning material for developers), Excalidraw is ahead of SlackAPI. On community (issue response, PR reviews and discussion health), Excalidraw is ahead of SlackAPI. On reach (how visible the ecosystem is beyond its own repos), Excalidraw is clearly ahead of SlackAPI. On momentum (release cadence and how fast the ecosystem moves), SlackAPI is clearly ahead of Excalidraw.

Excalidraw carries 136,744 GitHub stars across 25 public repos, with 3 repositories active in the last 90 days and 215 external contributors on record. SlackAPI shows 17,894 stars across 37 public repos, 19 active in the last 90 days and 39 external contributors. The star gap on its own does not decide the comparison, but Excalidraw's footprint is roughly 7.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Excalidraw is the stronger read for anyone weighting reach. SlackAPI looks better where momentum 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.