Open Source Projects using Python
A curated collection of the 332 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.
Embedded storage engine built on object storage
Stars
3,556Last commit
5 days agoLicense
Apache-2.0
SlateDB is an embedded storage engine that leverages object storage for durability, scalability, and simplified replication without the need for disk management.
Open Source Alternative to:
AI-powered platform for engineering LLM products
Stars
3,404Last commit
18 hours agoLicense
Apache-2.0
Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.
Open Source Alternative to:
Scalable SQL database for real-time analytics
Stars
4,443Last commit
9 hours agoLicense
Apache-2.0
Distributed SQL database designed for high-speed ingestion and complex queries on massive datasets, ideal for IoT and time-series data.
Open Source Alternative to:
Convert wearable data into actionable health insights with open algorithms
Stars
2,676Last commit
3 days agoLicense
MIT
Self-hosted health intelligence platform with open algorithms, AI reasoning engine, and zero per-user fees. Connect Apple Health, Whoop, Garmin, Oura, and more.
Open Source Alternative to:
Open-source code security engine for developers
Stars
3,199Last commit
2 days agoLicense
LGPL-2.1
Opengrep is a community-driven fork of SemgrepCE, providing accessible static code analysis and security scanning for developers.
Track your life, your way
Stars
3,644Last commit
19 hours agoLicense
GPL-3.0
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.
Open Source Alternative to:
Open-source document editing suite for secure collaboration
Stars
3,381Last commit
10 days agoLicense
Unknown
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.
Open Source Alternative to:
Professional raw photo processing made free and powerful
Stars
4,237Last commit
7 hours agoLicense
GPL-3.0
Free, cross-platform raw image processor with 32-bit floating point engine, advanced demosaicing algorithms, and professional-grade editing tools for photographers.
Open Source Alternative to:
Python, SQL, and AI in a collaborative data notebook
Stars
3,019Last commit
7 hours agoLicense
Apache-2.0
Deepnote is an open-source collaborative notebook for data analysts and scientists, combining Python, SQL, AI assistance, and live sharing in one cloud platform.
Open Source Alternative to:
Webhook delivery platform with retries, security, and a portal
Stars
3,453Last commit
2 days agoLicense
MIT
Add customer-facing webhooks to your product without building the infrastructure. Handles retries, signatures, multi-tenancy, filtering, and monitoring at scale.
Open Source Alternative to:
Group chat for friends and communities, without the baggage
Stars
3,404Last commit
15 hours agoLicense
Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.
Open Source Alternative to:
Stripe payments, usage tracking, and paywalls in 3 functions
Stars
2,827Last commit
17 hours agoLicense
Apache-2.0
Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.
Open Source Alternative to:
Monitor, debug, and scale LLM applications with ease
Stars
2,858Last commit
4 days agoLicense
Apache-2.0
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
Open Source Alternative to:
Transform any TV into professional digital signage
Stars
3,696Last commit
1 day agoLicense
Unknown
Free open-source digital signage software that turns Raspberry Pi or old PCs into powerful display solutions. Manage images, videos, and web content easily.
Open Source Alternative to:
Track gear, bookings, and inventory without spreadsheets
Stars
3,034Last commit
3 days agoLicense
AGPL-3.0
Open source asset management platform for teams to track equipment, manage bookings, prevent double-bookings, and handle custody and audits across locations.
Open Source Alternative to:
Powerful and user-friendly web hosting control panel
Stars
3,067Last commit
6 days agoLicense
Unknown
aaPanel simplifies Linux server management with one-click installations, intuitive interface, and comprehensive tools for websites, databases, and more.
Open Source Alternative to:
Secure, decentralized cloud storage for your data
Stars
3,283Last commit
6 hours agoLicense
AGPL-3.0
Storj offers a distributed cloud storage platform with enhanced security, global performance, and significant cost savings compared to traditional providers.
Open Source Alternative to:
Visual website builder for effortless web design
Stars
2,444Last commit
9 hours agoLicense
MIT
Frappe Builder is an open-source, low-code website builder that enables users to create beautiful, responsive websites with an intuitive visual interface.
Open Source Alternative to:
Get instant answers from your company knowledge
Stars
3,047Last commit
23 days agoLicense
Apache-2.0
AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.
Open Source Alternative to:
Create, sell, and manage online courses with full control
Stars
2,402Last commit
2 days agoLicense
AGPL-3.0
Open-source LMS for building and selling courses with a block-based editor, built-in payments, AI tools, analytics, and white-labeling. Self-host or use the cloud.
Open Source Alternative to:
Route GenAI traffic with confidence using open source
Stars
2,241Last commit
3 days agoLicense
Apache-2.0
Open source gateway built on Envoy for routing application traffic to GenAI services. Supports 16+ LLM providers including OpenAI, Anthropic, AWS Bedrock.
Open Source Alternative to:
Modern command-line HTTP client for the API era
Stars
4,051Last commit
2 years agoLicense
BSD-3-Clause
Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.
Open Source Alternative to:
Decentralized social network for book lovers and readers
Stars
2,798Last commit
17 hours agoLicense
Unknown
Join a federated social reading platform where you can track books, write reviews, discover recommendations from friends, and connect with trusted reading communities.
Open Source Alternative to:
Complete IT infrastructure monitoring made simple
Stars
2,599Last commit
15 hours agoLicense
GPL-2.0
Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.
Open Source Alternative to:
Open canvas for designing and building web apps
Stars
2,685Last commit
4 days agoLicense
Apache-2.0
Design and build web applications on an open canvas with AI-powered tools, Figma integration, pixel drawing, and a modular SDK built for extensibility.
Open Source Alternative to:
Self-host your digital life with ease
Stars
2,979Last commit
23 hours agoLicense
AGPL-3.0
Install and maintain your own server with minimal technical knowledge. Host websites, email, cloud storage, social networks, and more for complete digital independence.
Open Source Alternative to:
Real-time usage metering and billing for AI companies
Stars
2,389Last commit
9 hours agoLicense
Apache-2.0
Open source billing platform that turns events into revenue with real-time metering, usage limits, and flexible pricing. Integrates with Stripe, CRMs, and payment providers.
Open Source Alternative to:
Sell tickets for events, conferences, and exhibitions
Stars
2,542Last commit
6 hours agoLicense
Unknown
Full-stack ticketing platform covering online shop, point of sale, access control, and hardware for events of any size or industry.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,659Last commit
6 days agoLicense
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Open Source Alternative to:
AI-native CRM/ERP foundation with 80% already built
Stars
1,870Last commit
7 hours agoLicense
MIT
A modular CRM/ERP framework built on Next.js and TypeScript that encodes hundreds of architectural decisions so dev teams can ship production features in days, not months.
Open Source Alternative to:
Comprehensive open-source HR management solution
Stars
1,461Last commit
11 hours agoLicense
LGPL-2.1
Horilla is a free, open-source HRMS that streamlines HR processes, from recruitment to offboarding, with customizable modules.
Open Source Alternative to:
OpenTelemetry observability with traces, logs, and metrics
Stars
1,845Last commit
7 hours agoLicense
Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.
Open Source Alternative to:
GPU orchestration across clouds, Kubernetes, and on-prem
Stars
2,284Last commit
2 days agoLicense
MPL-2.0
Unified control plane for AI compute that provisions and schedules GPU workloads across any cloud, Kubernetes cluster, or bare-metal server.
Open Source Alternative to:
Data observability for modern data teams
Stars
2,423Last commit
6 days agoLicense
Apache-2.0
Elementary provides dbt-native data observability to detect issues, understand root causes, and resolve problems quickly in data pipelines.
Open Source Alternative to:
Business rules engine with AI, visual flows, and audit trails
Stars
2,075Last commit
4 days agoLicense
MIT
Model business logic in decision tables, visual flows, and natural-language rules. Change rules without deploys, test every path, and run the same engine anywhere.
Open Source Alternative to:
Self-hosted error tracking for full control and scalability
Stars
2,135Last commit
8 hours agoLicense
Unknown
Bugsink offers real-time error tracking with self-hosting capabilities, allowing easy installation and connection to any app using Sentry-compatible SDKs.
Open Source Alternative to:
Real-time stream processing made simple and affordable
Stars
2,270Last commit
7 days agoLicense
Apache-2.0
Timeplus is a lightweight, powerful, and cost-efficient stream processing platform for real-time analytics, deployed as a single binary.
Local meeting recorder that keeps your audio off the cloud
Stars
1,557Last commit
7 hours agoLicense
MIT
Records meetings and voice memos locally using whisper.cpp, writes structured markdown to disk, and exposes 31 MCP tools so any AI agent can query your conversation history.
Open Source Alternative to:
Open source monitoring for complex IT infrastructure
Stars
2,241Last commit
3 days agoLicense
GPL-3.0
Monitor networks, servers, and cloud environments with flexible open-source solution. Custom checks, fast alerts, and complete infrastructure control.
Open Source Alternative to:
Serverless GPU compute with sub-second cold starts
Stars
1,827Last commit
7 hours agoLicense
AGPL-3.0
Run GPU inference, task queues, and sandboxes on serverless infrastructure with sub-second cold starts, autoscaling, and support for your own AWS, GCP, or bare metal.
Open Source Alternative to:
Enterprise file sync, share, and collaboration platform
Stars
2,154Last commit
7 hours agoLicense
Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
Open Source Alternative to:
Open source CI/CD platform that's faster and costs less
Stars
1,624Last commit
2 days agoLicense
Unknown
Continuous integration and delivery platform offering faster builds, lower costs, and maintenance-free operations. Cut build times dramatically while reducing CI/CD expenses by 50%.
Open Source Alternative to:
Docmost – Open-source wiki software with real-time collaboration, diagrams, AI, SSO, RBAC permissions and more.
Bright Data
Stellar Hosted
Windshift