Umami vs Weights & Biases — Which One Wins?
A detailed, side-by-side comparison of Umami and Weights & Biases to help you pick the right tool for your workflow.
Quick Verdict
Weights & Biases takes the lead with a 4.9 rating and is best for ml teams that need to track, compare, and reproduce experiments. Umami (3.5) is the better pick if you need devs wanting free self-hosted analytics.
Side-by-Side Comparison
| Criteria | Umami | Weights & Biases |
|---|---|---|
| Rating | ★★★★ 3.5(10) | ★★★★★ 4.9(12) |
| Pricing Model | open_source | freemium |
| Starter Price | $9/mo | $50/user/mo |
| Free Tier | No | No |
| Platforms | Web | Web |
| Learning Curve | easy | moderate |
| API Available | Yes | Yes |
| Best For | Devs wanting free self-hosted analytics | ML teams that need to track, compare, and reproduce experiments |
| Verdict | recommended | recommended |
Feature Checklist
| Feature | Umami | Weights & Biases |
|---|---|---|
| Open-source | — | |
| Self-hosted | — | |
| No cookies | — | |
| Events | — | |
| Team dashboards | — | |
| Multi-site | — | |
| Experiment tracking | — | |
| Model evaluation | — | |
| Dataset versioning | — | |
| Collaborative dashboards | — | |
| Hyperparameter sweeps | — | |
| Artifact management | — |
Umami
Pros
- ✓Free self-hosted
- ✓Clean dash
- ✓No cookies
- ✓Easy
Cons
- ✕Self-hosting required
- ✕Limited advanced
- ✕Smaller community
Weights & Biases
Pros
- ✓Industry standard
- ✓Excellent visualizations
- ✓Good free tier
- ✓Comprehensive artifacts
Cons
- ✕ML-specific only
- ✕Enterprise pricing steep
- ✕Learning curve for full features
The Bottom Line
Both Umami and Weights & Biases are solid tools in the Analytics & Data space. Weights & Biases edges ahead with a stronger overall rating (4.9 vs 3.5) and is the better choice for ml teams that need to track, compare, and reproduce experiments. However, if you prioritize devs wanting free self-hosted analytics, Umami is worth serious consideration. We recommend trying the free tier or trial of each before committing.