Stacks
263 developer and AI tools: weekly downloads from PyPI, npm, crates.io, Docker Hub, Homebrew and VS Code, GitHub stars and releases.
263 developer and AI tools: weekly downloads from PyPI, npm, crates.io, Docker Hub, Homebrew and VS Code, GitHub stars and releases.
| LangGraph | CrewAI | |
|---|---|---|
| Category | Agent frameworks & LLM SDKs | Agent frameworks & LLM SDKs |
| Stars | 43.5k | 59.9k |
| Stars this week | – | – |
| Weekly downloads | 16.1M | 668.6k |
| Downloads vs 4 weeks before | +6% | +14% |
| Downloads from | npm, pypi | pypi |
| Releases (90 days) | 29 | 24 |
| Last release | 2026-10-19 | 2026-10-14 |
| Language | Python | Python |
| Archived | no | no |
| Tool | Category | Downloads / wk | Change | Stars | Stars this week | Releases (90d) | Trend |
|---|---|---|---|---|---|---|---|
| JAX | Model training & ML | 2.7M | +18.1% | 36.5k | — | 3 | |
| Ruff | Developer tooling | 89.4M | +17.3% | 50.2k | — | 13 | |
| Lightning | Model training & ML | 1.1M | +17.2% | 31.4k | — | 1 | |
| pgvector | RAG, search & vector databases | 9.1M | +17.1% | 23.4k | — | 0 | |
| Diffusers | Model training & ML | 1.4M | +16.6% | 34.8k | — | 2 | |
| Axum | Web frameworks | 13.9M | +16.6% | 27.5k | — | 0 | |
| Triton | Model training & ML | 11.4M | +16.4% | 20.4k | — | 1 | |
| MarkItDown | RAG, search & vector databases | 3.9M | +16.3% | 191.2k | — | 4 | |
| Chroma | RAG, search & vector databases | 2.2M | +15.4% | 29.5k | — | 0 | |
| LightGBM | Model training & ML | 5.2M | +14.8% | 18.9k | — | 0 | |
| DeepEval | Agent frameworks & LLM SDKs | 769.3k | +14.7% | 19k | — | 7 | |
| OpenAI Python SDK | Agent frameworks & LLM SDKs | 126.4M | +6.0% | 31.9k | — | 53 | |
| pytest | Developer tooling | 212.4M | +14.1% | 14.6k | — | 0 | |
| Open WebUI | Inference & serving | 217.4k | −16.5% | 156.2k | — | 9 | |
| Weights & Biases | Model training & ML | 4.1M | +13.6% | 11.3k | — | 4 | |
| GraphRAG | RAG, search & vector databases | 16.2k | +29.7% | 36.4k | — | 3 | |
| Ragas | Agent frameworks & LLM SDKs | 319.9k | +13.6% | 16.1k | — | 0 | |
| Ultralytics YOLO | Model training & ML | 1.1M | +13.4% | 62.7k | — | 79 | |
| MCP Python SDK | Agent frameworks & LLM SDKs | 65.4M | +13.4% | 24.6k | — | 10 | |
| Actix Web | Web frameworks | 1.1M | +6.6% | 24.9k | — | 30 | |
| Qdrant | RAG, search & vector databases | 3.6M | +12.7% | 35.1k | — | 3 | |
| Elysia | Web frameworks | 1.7M | +12.4% | 19.3k | — | 1 | |
| Aider | AI coding tools | 68.2k | +12.4% | 49.6k | — | 0 | |
| Flask | Web frameworks | 39.9M | +12.4% | 75k | — | 0 |