The Milvus Project vs Open WebUI

The Milvus Project (The open source vector database designed for AI applications) and Open WebUI (On a mission to build the best AI user interface.) both appear on the Smoower Developer Ecosystem Index.

Open WebUI (rank #189) holds a narrow lead over The Milvus Project (rank #237) on the overall Smoower ecosystem score (50 vs 48). The gap of 2 points reflects composite signals across code, docs, community and reach.

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

The Milvus Project carries 52,043 GitHub stars across 67 public repos, with 20 repositories active in the last 90 days and 90 external contributors on record. Open WebUI shows 159,650 stars across 25 public repos, 12 active in the last 90 days and 198 external contributors. The star gap on its own does not decide the comparison, but Open WebUI's footprint is roughly 3.1x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

The Milvus Project is the stronger read for anyone weighting community. Open WebUI 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.