Best Open Source AI & Machine Learning in 2026
Platforms and libraries for building, training, and deploying machine learning models and AI-powered applications.
The most popular pick this year is open-pencil with 4,843 GitHub stars, but all 3 options below are worth considering depending on your needs.
3 open source ai & machine learning — ranked by GitHub stars. Browse all
open-pencil
AI-native design editor with real-time collaboration, component system, and Figma-compatible file format.
Figma
Speakr
Self-hosted AI transcription and intelligent note-taking platform that turns audio recordings into organized, searchable notes with speaker identification.
Otter.ai
Midas
Open platform for governing execution authority at decision surfaces across agents, AI systems, and enterprise workflows.
How we rank these tools
Tools are ranked by GitHub stars as a proxy for community adoption and trust. Stars reflect how many developers found a project valuable enough to bookmark — a reasonable signal for quality in the open source world. We only list tools that are actively maintained and open source.
Looking for tools you can run yourself? Browse self-hosted ai & machine learning →