Best ML Experiment Tracking Software in 2026
Updated
In short: Comet is ranked #1 of 37 as of 4 October 2026, ahead of Weights & Biases and ClearML. The best-ranked option with a free plan is Weights & Biases. The lowest first paid tier on this page is GitLab Package Registry at $2.42/mo.
Tracking machine-learning experiments can help keep runs and their related datasets, artifacts, and models organized. ClearML, Comet, and Weights & Biases lead this ranking, with Trackio and DagsHub among the following entries. Compare run comparison, artifact tracking, and dataset versioning to see how each supports reviewing experiment work. API and SDK access, deployment options, and a model registry provide other points to consider for your workflow. Check free-plan availability and the paid-from price alongside the listed capabilities as you compare tools.
37 ML experiment tracking software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
15 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | CometWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $19/mo | 6.7 | |
| 2 | Weights & BiasesWeb · Windows · Mac · Linux · iPhone · Self-hosted · API | Three bars | — | 5 of 6 | $60/mo | 6.7 | |
| 3 | ClearMLWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $15/mo | 6.6 | |
| 4 | MLRunWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 5 | TensorBoardWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 6 | TrackioWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 7 | ZenMLWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $999/mo | 6.6 | |
| 8 | GitLab Package RegistryWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | $2.42/mo | 6.5 | |
| 9 | Hopsworks AI LakehouseWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | Free | 6.5 | |
| 10 | Amazon SageMaker AutopilotWeb · API | Two bars | — | 1 of 6 | — | 6.4 | |
| 11 | DagsHubWeb · Self-hosted · API | Two bars | — | 1 of 6 | $8.25/mo | 6.4 | |
| 12 | Databricks NotebooksWeb | Two bars | — | 1 of 6 | Free | 6.4 | |
| 13 | MLflow GenAI EvaluationWeb · Self-hosted · API | Two bars | — | 1 of 6 | Free | 6.3 | |
| 14 | OpenMLWeb · API | Two bars | — | 1 of 6 | Free | 6.3 | |
| 15 | PolyaxonWeb · Self-hosted · API | Two bars | — | 1 of 6 | Free | 6.3 | |
| 16 | Guild AIWeb · Windows · Mac · Linux | Two bars | — | — | 4 of 6 | — | 5.7 |
| 17 | FastTrackMLWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | — | 5.5 |
| 18 | LUML FlowNo platforms listed | One bar | — | — | 0 of 6 | — | 5.4 |
| 19 | InstantMLWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 20 | LaminWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 21 | mlopWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 22 | Rubicon-MLWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 23 | Snowflake CoCoWeb · Windows · Mac · Linux · API | Two bars | — | — | 4 of 6 | — | 5.2 |
| 24 | DVCLiveNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 25 | LabMLWeb | No signal | — | — | 1 of 6 | — | 5.1 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which ML experiment tracking software is ranked first on Freedom251?
Comet is ranked #1 of 37 with a score of 6.7. Weights & Biases is second and ClearML third.
How many of these have a free plan?
14 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, GitLab Package Registry has the lowest first paid tier we found: $2.42/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.