Open WebUI vs Sardine

Open WebUI (On a mission to build the best AI user interface.) and Sardine both appear on the Smoower Developer Ecosystem Index.

Open WebUI (rank #190) holds a modest lead over Sardine (rank #569) on the overall Smoower ecosystem score (50 vs 35). The gap of 15 points reflects composite signals across code, docs, community and reach.

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

Open WebUI carries 159,650 GitHub stars across 25 public repos, with 12 repositories active in the last 90 days and 198 external contributors on record. Sardine shows 19 stars across 55 public repos, 5 active in the last 90 days and 5 external contributors. The star gap on its own does not decide the comparison, but Open WebUI's footprint is roughly 8402.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Open WebUI is the stronger read for anyone weighting community. Sardine 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.