Apache Superset
Apache Software Foundation · BI & dashboards
Apache-licensed BI web application with SQL Lab, a no-code chart builder, dashboards and connectors to any SQLAlchemy-compatible database
Apache-2.0Open sourceFreeSelf-hostedNov 2, 2026
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4 tools
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Langfuse
Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability
Open-source LLM observability and evaluation platform: tracing, LLM-as-judge and human evals, prompt management, datasets and cost dashboards, self-hostable or as Langfuse Cloud
MITOpen sourceFreemiumSelf-hostedNov 2, 2026
marimo
marimo (acquisition by CoreWeave announced October 2025) · Notebooks & interactive computing
Reactive Python notebook stored as a plain .py file that re-runs dependent cells automatically and doubles as a script or web app
Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026
Project Jupyter
Project Jupyter (NumFOCUS) · Notebooks & interactive computing
Open-source computational notebook ecosystem: the .ipynb format, kernels for Python, R and Julia, JupyterLab and Notebook interfaces and JupyterHub
BSD-3-ClauseOpen sourceFreeLocalSelf-hostedNov 2, 2026
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