Open Source Projects using Python
A curated collection of the 287 best open source software using Python. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Organized team chat for distributed teams
Stars
25,730Last commit
6 hours agoLicense
Apache-2.0
Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.
Open Source Alternative to:
Declarative workflow orchestration for data, AI, and infra
Stars
27,853Last commit
6 hours agoLicense
Apache-2.0
YAML-based orchestration platform with 1400+ plugins for running data pipelines, AI workflows, and infrastructure automation across teams at scale.
Open Source Alternative to:
High-performance object storage designed for AI workloads
Stars
61,387Last commit
4 months agoLicense
AGPL-3.0
Open source S3-compatible object storage optimized for cloud-native and AI applications, delivering unmatched performance and scalability
Open Source Alternative to:
AI assistant that enhances enterprise knowledge management
Stars
22,542Last commit
12 hours agoLicense
GPL-3.0
Open-source AI solution combining RAG pipelines, workflow automation, and multi-model support for intelligent enterprise knowledge management and customer service.
Build and deploy AI agents with advanced memory
Stars
24,304Last commit
4 days agoLicense
Apache-2.0
Letta is an open-source platform for creating AI agents with built-in memory, reasoning, and support for thousands of tools.
Open Source Alternative to:
Private messaging with end-to-end encryption
Stars
29,222Last commit
2 days agoLicense
AGPL-3.0
Secure messaging app with state-of-the-art encryption, voice/video calls, group chats, and file sharing. No ads, trackers, or data collection.
Open Source Alternative to:
All-in-one workspace for project, chat, and docs
Stars
27,390Last commit
8 days agoLicense
EPL-2.0
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.
Open Source Alternative to:
Self-hosted mini-PaaS for deploying applications easily
Stars
32,107Last commit
9 hours agoLicense
MIT
A Docker-powered platform that lets you deploy Heroku-compatible applications via Git, with buildpack support and container isolation.
Open Source Alternative to:
Build unlimited AI apps locally with zero vendor lock-in
Stars
21,279Last commit
6 hours agoLicense
Apache-2.0
Create full-stack AI applications using any model or tool. Run entirely on your machine with complete privacy, flexibility, and control over your code.
Open Source Alternative to:
Connect, query, visualize, and share your data
Stars
28,757Last commit
1 day agoLicense
BSD-2-Clause
Redash is an open-source data visualization and analytics platform that helps teams make sense of their data through SQL queries and interactive dashboards.
Open Source Alternative to:
AI agent that autonomously handles real-world tasks
Stars
20,119Last commit
6 hours agoLicense
Apache-2.0
Open source AI assistant that executes complex tasks from market research to travel planning through natural conversation, with full transparency and community-driven development.
Open Source Alternative to:
Time-series database and historian for industrial data
Stars
25,068Last commit
4 days agoLicense
AGPL-3.0
High-performance time-series database with industrial data management, built-in stream analytics, and AI-driven anomaly detection for operational environments.
Open Source Alternative to:
Automate any website workflow with AI and computer vision
Stars
22,790Last commit
19 hours agoLicense
AGPL-3.0
Transform manual browser tasks into automated workflows using AI. Handle complex forms, CAPTCHAs, 2FA, and data extraction across any website at scale.
Open Source Alternative to:
Zero trust network access that's better than VPN
Stars
22,383Last commit
8 hours agoLicense
AGPL-3.0
Deploy zero trust access to infrastructure, self-hosted apps, and SaaS tools in days. Identity-aware security with seamless user experience.
Open Source Alternative to:
GPU-accelerated terminal emulator with multiplexing across all platforms
Stars
28,447Last commit
7 hours agoLicense
MIT
Cross-platform terminal emulator and multiplexer with GPU acceleration, true color support, and Lua configuration. Runs on Linux, macOS, Windows, FreeBSD, and NetBSD.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
19,513Last commit
8 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
Cross-platform, secure password manager
Stars
28,453Last commit
7 days agoLicense
Unknown
KeePassXC is an open-source password manager that securely stores and manages sensitive information across Windows, macOS, and Linux.
Open Source Alternative to:
Open-source data integration for modern teams
Stars
21,921Last commit
9 hours agoLicense
Elastic-2.0
Seamlessly sync data from any source to any destination with a flexible, extensible platform that grows with your data needs.
Open Source Alternative to:
Take control of your identity with a secure, flexible solution
Stars
24,982Last commit
6 hours agoLicense
MIT
authentik is an open-source identity provider that offers self-hosted authentication, authorization, and user management for businesses of all sizes.
Open Source Alternative to:
AI-powered DevSecOps for faster, secure software delivery
Stars
24,532Last commit
6 hours agoLicense
MIT
A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.
Open Source Alternative to:
AI agents that autonomously fix code and resolve GitHub issues
Stars
20,081Last commit
2 days agoLicense
MIT
State-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.
Open Source Alternative to:
Flexible e-commerce platform for modern businesses
Stars
23,238Last commit
10 hours agoLicense
BSD-3-Clause
Headless, API-first e-commerce solution with powerful features for customization, scalability, and seamless integration across channels.
Open Source Alternative to:
Create 2D and 3D games without coding, powered by AI assistance
Stars
25,786Last commit
6 hours agoLicense
Unknown
Free, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.
Open Source Alternative to:
Privacy-first browser with ad-blocking and no bloat
Stars
19,609Last commit
6 hours agoLicense
GPL-3.0
Chromium-based desktop browser with default ad and tracker blocking, no analytics, native !bangs, split view, and full MV2 extension support.
Open Source Alternative to:
Infrastructure as code in your favorite language
Stars
25,587Last commit
6 hours agoLicense
Apache-2.0
Pulumi enables developers to define and manage cloud infrastructure using familiar programming languages instead of domain-specific languages.
Open Source Alternative to:
Self-hosted newsletter and mailing list manager
Stars
23,002Last commit
1 day agoLicense
AGPL-3.0
Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.
Open Source Alternative to:
Python-native workflow orchestration for data and ML teams
Stars
23,642Last commit
7 hours agoLicense
Apache-2.0
Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.
Open Source Alternative to:
Modern and intuitive SQL client for multiple databases
Stars
23,476Last commit
14 hours agoLicense
Unknown
A user-friendly SQL editor and database manager supporting MySQL, PostgreSQL, SQLite, SQL Server and more with full feature parity across operating systems.
Open Source Alternative to:
Open-source crypto trading bot for market making
Stars
19,507Last commit
8 hours agoLicense
Apache-2.0
Automate crypto trading strategies with a powerful, customizable platform. Connect to multiple exchanges and optimize your market making.
Open Source Alternative to:
Fast, private browser that puts you first
Stars
23,375Last commit
8 hours agoLicense
MPL-2.0
A secure web browser that blocks ads and trackers, protects privacy, and loads pages faster while saving data and battery life.
Open Source Alternative to:
Fast, secure, offline API client with Git integration
Stars
19,086Last commit
7 hours agoLicense
MIT
A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.
Open Source Alternative to:
Time-series database built on top of PostgreSQL
Stars
23,365Last commit
6 hours agoLicense
Unknown
PostgreSQL extension for time-series data with automatic partitioning, up to 95% columnar compression, continuous aggregates, and ~200 native SQL functions.
Open Source Alternative to:
Serverless Postgres for modern applications
Stars
22,901Last commit
3 months agoLicense
Apache-2.0
Cloud-native, auto-scaling Postgres with instant branching, bottomless storage, and pay-per-use pricing
Open Source Alternative to:
Unify data models and metrics across your entire stack
Stars
20,663Last commit
6 hours agoLicense
Unknown
Cube is a universal semantic layer that connects data sources to analytics tools, providing consistent definitions and fast queries.
Open Source Alternative to:
Visual project management with complete data control
Stars
21,057Last commit
9 hours agoLicense
MIT
Open-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.
Open Source Alternative to:
Privacy-first knowledge base with any AI model you choose
Stars
15,964Last commit
10 hours agoLicense
Apache-2.0
Self-hostable NotebookLM alternative that lets teams build searchable knowledge bases from diverse sources, with support for any LLM and no data limits.
Open Source Alternative to:
Scalable open-source distributed storage system
Stars
16,948Last commit
7 hours agoLicense
Unknown
Ceph provides unified object, block, and file storage from a single cluster built on commodity hardware.
Open Source Alternative to:
Create, edit and share documents with real-time collaboration
Stars
16,734Last commit
2 days agoLicense
MIT
Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
Open Source Alternative to:
Open-source workflow automation for developers
Stars
17,582Last commit
6 hours agoLicense
Unknown
Powerful, self-hosted platform for building and running workflows, scripts, and apps with code-first approach and collaborative features.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
13,088Last commit
6 hours agoLicense
Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.
Open Source Alternative to:
SQLite-compatible database for scalable multi-tenant applications
Stars
17,147Last commit
8 days agoLicense
MIT
Turso provides a simple developer experience with SQLite compatibility, allowing you to build and scale multi-tenant applications with unlimited databases.
Open Source Alternative to:
Run long-running AI tasks without timeouts or servers
Stars
16,066Last commit
6 hours agoLicense
Apache-2.0
Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.
Open Source Alternative to:
CodeRabbit – The leading AI Code Review platform. Ship better quality code in 50% less time, with 90% fewer bugs.
Stellar Hosted
Sevalla
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