Top Open Source Projects Built With Python in 2026
A curated collection of the 193 best free and open-source projects built using Python. Discover popular repositories, architecture patterns, and trending software in 2026.
Zulip
Organized team chat for distributed teams
Stars25,775Last commit11d agoLicenseApache-2.0
Zed
High-performance, multiplayer code editor
Stars89,305Last commit10d agoLicenseOpen Source
YunoHost
Self-host your digital services easily
Stars2,967Last commit14d agoLicenseAGPL-3.0Grok Build
AI-powered terminal coding agent
Stars26,121Last commit12d agoLicenseApache-2.0Chroma
Open-source search infrastructure for AI
Stars29,157Last commit11d agoLicenseApache-2.0
OpenLLMetry
Open-source observability for LLMs with OpenTelemetry
Stars7,402Last commit27d agoLicenseApache-2.0
Usertour
Open-source user onboarding platform
Stars2,292Last commit10d agoLicenseOpen SourceSurfSense
Open-source NotebookLM alternative for live web research
Stars16,022Last commit13d agoLicenseOpen Source
Storyden
Self-hosted community forum platform
Stars332Last commit14d agoLicenseMPL-2.0TimescaleDb
Time-series database built on PostgreSQL
Stars23,425Last commit11d agoLicenseOpen SourceSpanlens
Open source LLM observability & monitoring
Stars12Last commit16d agoLicenseMIT
Skyvern
AI-powered browser automation for any website
Stars22,857Last commit12d agoLicenseAGPL-3.0Spacedrive
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.
Stars38,861Last commit1mo agoLicenseOpen SourceParlant
A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
Stars18,269Last commit1mo agoLicenseApache-2.0
Papermark
Open-source DocSend alternative with analytics
Stars8,977Last commit11d agoLicenseOpen Source
