Free and open first
Best Experiment Tracking in 2026
Experiment tracking tools help record machine-learning runs, compare results, manage versions, and keep experiment details with related artifacts. This page is for people choosing a tool on a budget, whether they work in a hosted service or run software themselves.
- 22 apps
- Research read 7 Oct 2026
- How the order is worked out
- 1
Paperspace Gradient
Free plan Open source APIExtensionLinux+4Gradient combines browser-based notebook work with model deployment and on-demand compute. Check the limits of the selected free plan and account for paid instance utilization costs.
- 2
ClearML
Free plan APILinuxMac+3ClearML combines AI/ML development tooling with infrastructure and GenAI deployment capabilities, and offers both self-hosted and managed deployment paths.
- 3
Comet
Free plan APILinuxMac+3Comet covers both LLM observability and evaluation through Opik and machine-learning workflows through MLOps.
- 4
MLflow Model Registry
Free plan APILinuxSelf-hosted+1MLflow Model Registry provides versioning, lineage, and lifecycle tools in a free open-source package. Teams that need artifact storage should note that it is not supported.
- 5
MLRun
Free plan APILinuxMac+3Choose MLRun if your team needs an open-source framework for coordinating ML or generative-AI work, with feature management and lifecycle tools.
- 6
ModelDB
Free plan APISelf-hostedWebModelDB combines model versioning, lifecycle metadata, and experiment management with API and web access.
- 7
Polyaxon
Free plan APISelf-hostedWebChoose Polyaxon if you need a Kubernetes control plane that combines experiment tracking, workload orchestration and evaluation, with managed and self-hosted deployment choices.
- 8
TensorBoard
Free plan APILinuxMac+3TensorBoard offers a range of visualizations and profiling tools for TensorFlow experimentation at no cost.
- 9
Trackio
Free plan APILinuxMac+3Trackio supports experiment logging, comparison, varied media, and several storage options in a free Python library.
- 10
OpenML
Free plan APIWebOpenML brings datasets, benchmark tasks, experiment tracking, and citation support together for machine-learning work.
- 11
Weights & Biases
Free plan AndroidAPIiPhone+5Choose Weights & Biases if your work needs experiment tracking alongside tools for evaluating and monitoring AI applications, with registry and deployment options.
- 12
Kubeflow Notebooks
Free plan Self-hostedWebChoose Kubeflow Notebooks if you want free, open-source notebook environments running inside Kubernetes, with configurable resources and organization-level access control.
- 13
MLtraq
Free plan LinuxMLtraq offers flexible experiment tracking and data access across Python and SQL workflows. Pin an exact version and verify updates with tests, as its documentation recommends.
- 14
Determined
Free plan LinuxWebDetermined combines free access with GPU and distributed training support across Linux and web platforms. It fits teams whose training workflows match its Python and multi-target scope.
- 15
Sacred
Free plan LinuxMacWindows - 16
Valohai
Free trial APILinuxSelf-hosted+1Valohai brings core MLOps workflow controls into one platform, with flexible compute and deployment choices. Teams should request a quote to assess its per-user subscription cost.
- 17
Domino Data Lab
Paid APISelf-hostedWebDomino brings model development, deployment, collaboration, and governance into one enterprise platform. Buyers should request pricing and compare plan limits and deployment options with their needs.
- 18
Snowflake Feature Store
Paid APIWebChoose Snowflake Feature Store if your team builds ML features within Snowflake and needs batch or streaming updates, point-in-time joins, or automatic lineage.
5.2 Visit site - 19
Azure Machine Learning
Paid WebChoose Azure Machine Learning if your workflows need forecasting, evaluation, automated learning, or batch and real-time deployment.
5.0 Visit site - 20
MLXP
PaidMLXP covers launching, recording, versioning, and analyzing machine-learning experiments in one Python framework.
- 21
Amazon SageMaker AI
Paid Web4.6 Visit site - 22
Databricks Mosaic AI
Paid Web
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free-plan limits, paid starting prices, trial periods, and licence terms. Check support for artifact storage, run comparison, seats, version control, deployment options, and the platforms you need before choosing. If you need to read or change code, check the licence.
Questions
Which experiment tracking tools offer free access?
The list marks ClearML, Comet, Determined, Kubeflow Notebooks, MLflow Model Registry, MLRun, and MLtraq as having free plans.
Which tools are open source?
Kubeflow Notebooks, MLRun, and MLXP are listed as open source. MLflow Model Registry is listed as free.
Are free trials available?
Databricks Mosaic AI is listed with a 14-day trial. MLRun is listed as open source with a 14-day trial.
What paid starting prices are listed?
ClearML shows paid plans starting at $15 per user per month. Comet shows paid plans starting at $19 per user per month. Domino Data Lab gives pricing on request.
Can I self-host an experiment tracking tool?
Self-hosted support is a comparison field for this category. Check the product details for the self-hosted option and the platform it supports.
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