Trackio

Trackio is ranked #6 of 37 in ML experiment tracking software on Freedom251. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Trackio plans and pricing

All plans

Free Free Trackio library and Hugging Face hosting are free; no plan limits stated huggingface.co · 2 Oct 2026

Compared on ML experiment tracking software

Free plan: Yes
Training mode: local
Deployment targets: multiple
GPU acceleration: Yes
Distributed training: Yes
Supported languages: Python
Model formats: ONNX, ExecuTorch, PyTorch ExportedProgram

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Trackio

Purpose: Trackio is a lightweight Python library for tracking machine learning experiments, built on Hugging Face Buckets and Spaces.
Logging: Its API is compatible with wandb.init, wandb.log, and wandb.finish, and the docs show it can be used as a drop-in replacement.
Storage and dashboard: Trackio runs a dashboard locally by default and can store logs locally, in a Hugging Face Bucket, or on a self-hosted server.
Experiment data: Runs can log metrics and configuration, and the dashboard groups runs to compare experiments.
Media: The logging API supports tables, Markdown reports, images, video, audio, 3D objects, HTML, and Matplotlib or Plotly figures.
System monitoring: Optional packages enable NVIDIA GPU monitoring and Apple Silicon system monitoring, with compatible hardware metrics logged automatically by default.
Integrations: Trackio documents native integrations with Transformers and TRL, plus a RapidFire AI integration for fine-tuning and RAG experiments.
Alerts: Alerts can be printed, stored, queried, shown in the dashboard, and optionally sent to Slack or Discord webhooks.
API and MCP: The dashboard can run as an HTTP API and MCP server, exposing read tools and mutation tools gated by a write token.
Self-hosting security: For a self-hosted server outside Hugging Face Spaces, metric ingestion and uploads require a write token, which the docs say to treat as a secret on untrusted networks.
Notable limitation: Trackio intentionally does not include a first-class hyperparameter sweep API; its docs describe sweeps as Python loops with one run per configuration.
Intended users: Trackio describes itself as designed for autonomous ML experiments and provides CLI commands and Python APIs for agents to log and query experiment data.
Price from: Free

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Where it ranks on Freedom251

Best ML Experiment Tracking Software in 2026#6 of 37
Best Deep Learning Software in 2026#8 of 34
Best Robotics Education Software in 2026#7 of 26

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Sources

huggingface.co/docs/trackio/· checked 2 Oct 2026
huggingface.co/docs/trackio/track· checked 2 Oct 2026
huggingface.co/docs/trackio/transformers_integration· checked 2 Oct 2026
huggingface.co/docs/trackio/alerts· checked 2 Oct 2026
huggingface.co/docs/trackio/api_mcp_server· checked 2 Oct 2026
huggingface.co/docs/trackio/self_hosted_server· checked 2 Oct 2026
huggingface.co/docs/trackio/sweeps· checked 2 Oct 2026