Here's a detailed comparison between UV Package Manager and Conda:
| Feature | UV Package Manager | Conda |
|---|---|---|
| Primary Language | Rust | Python |
| Package Format | PyPI (wheel, source) | Conda packages (binary) |
| Speed | 🚀 Extremely fast (Rust-based) | Moderate (slower dependency resolution) |
| Dependency Resolution | Fast, uses modern resolver | Slower, but powerful for binary packages |
| Environment Management | ✅ Yes (via uv venv) |
✅ Yes (conda create, conda activate) |
| Lockfile Support | ✅ Yes (uv.lock) |
❌ Not built-in (via external tools like conda-lock) |
| Python-only? | ✅ Yes, focuses only on Python packages | ❌ No, supports R, C/C++, Julia, etc. |
| Offline Caching | ✅ Yes (uv cache) |
✅ Yes |
| Cross-platform | ✅ Yes | ✅ Yes |
| Virtual Environment Type | Uses .venv/ (standard Python venv) |
Conda environments |
| Third-party Libraries | From PyPI (e.g. requests, numpy) |
From Conda channels (defaults, conda-forge, etc.) |
| Binary Packages | ❌ No (uses wheels/compilation if needed) | ✅ Yes (precompiled binaries, no compiler required) |
| Ease of Use | Simple & clean UX with CLI | Slightly more complex CLI |
| Project Scope | Python development only | Full data science stack (R, CUDA, etc.) |
| Installation Size | Very lightweight (~single binary) | Heavyweight (~500MB+ for full Conda) |
| Best Use Case | Python dev, apps, fast installs, reproducible projects | Scientific computing, mixed language environments |
✅ Use uv if:
You want blazing fast dependency management for Python-only projects.
You prefer modern tooling (like pyproject.toml).
You want something lightweight and dev-focused.
✅ Use conda if:
You need non-Python packages (like R, C/C++ libs).
You work with data science or machine learning stacks.
You rely on binary distributions or platform-specific builds.