Open Source Projects using OpenAI
A curated collection of the 174 best open source software using OpenAI. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Your all-in-one marketplace for digital creators and products
Stars
9,758Last commit
6 hours agoLicense
MIT
A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.
Open Source Alternative to:
Open-source LLM tracing & evaluation for AI optimization
Stars
11,692Last commit
6 hours agoLicense
Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Open Source Alternative to:
AI-Powered Note Taking App
Stars
11,055Last commit
1 month agoLicense
GPL-3.0
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
Open Source Alternative to:
The personal finance app for everyone
Stars
10,380Last commit
6 hours agoLicense
AGPL-3.0
An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.
Open Source Alternative to:
AI-powered answer engine with dynamic interface generation
Stars
9,152Last commit
3 days agoLicense
Apache-2.0
Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.
Open Source Alternative to:
Private meeting notes, no bots, files you own
Stars
9,428Last commit
22 hours agoLicense
MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.
Open Source Alternative to:
Voice-to-text that works offline, privately, on any app
Stars
8,992Last commit
7 hours agoLicense
MIT
Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.
Open Source Alternative to:
Design editor that opens Figma files, runs AI, and stays local
Stars
8,731Last commit
5 hours agoLicense
MIT
A Figma-compatible design editor with built-in AI chat, headless CLI, real-time P2P collaboration, and a Vue SDK for building custom editors. No account needed.
Open Source Alternative to:
AI-powered PIM for managing product catalogs at scale
Stars
11,017Last commit
3 days agoLicense
MIT
Open source Product Information Management system with an AI agent for catalog enrichment, bulk updates, multilingual content, and omnichannel distribution.
Open Source Alternative to:
Open-source document sharing with powerful analytics
Stars
9,235Last commit
1 month agoLicense
AGPL-3.0
Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.
Open Source Alternative to:
Visual web development with code-level control
Stars
9,021Last commit
13 hours agoLicense
AGPL-3.0
Powerful no-code platform for building responsive websites. Combines visual editing with full HTML/CSS customization.
Open Source Alternative to:
Create powerful forms with ease and flexibility
Stars
8,994Last commit
25 days agoLicense
AGPL-3.0
A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.
Open Source Alternative to:
Magical data pipeline tool for seamless transformations
Stars
8,829Last commit
22 days agoLicense
Apache-2.0
Open-source data pipeline platform for effortless data integration, transformation, and orchestration using Python, SQL, and R.
Open Source Alternative to:
Real-time observability for modern web applications
Stars
9,382Last commit
2 days agoLicense
Apache-2.0
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.
Open Source Alternative to:
Open-source A/B testing and feature flagging platform
Stars
8,469Last commit
16 hours agoLicense
MIT
Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.
Open Source Alternative to:
Self-hosted enterprise agent platform with real permissions
Stars
5,951Last commit
1 day agoLicense
MIT
Deploy AI agents inside your own infrastructure with document-grounded answers, computer use, and support for any AG-UI-compatible agent framework.
Open Source Alternative to:
Comprehensive monitoring and incident management platform
Stars
7,697Last commit
5 hours agoLicense
Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly
Open Source Alternative to:
Simplify expense management for businesses of all sizes
Stars
5,047Last commit
14 hours agoLicense
MIT
Automate expense reporting, reimbursements, and corporate card management with real-time data sync and powerful integrations.
Modular auth, payments, emails, and analytics for your product
Stars
6,860Last commit
1 day agoLicense
Unknown
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.
Open Source Alternative to:
Visual app builder that integrates with your existing codebase
Stars
7,065Last commit
19 hours agoLicense
MIT
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.
Open Source Alternative to:
Open-source cloud communications platform for developers
Stars
8,129Last commit
16 days agoLicense
MIT
Build and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.
Open Source Alternative to:
Open-source legal AI that law firms control and extend
Stars
4,295Last commit
23 hours agoLicense
AGPL-3.0
Self-hostable alternative to Harvey and Legora with document analysis, contract drafting, tabular review, and reusable workflows. Zero licensing costs, full data control.
Open Source Alternative to:
Build stateful backends with in-memory actors
Stars
6,223Last commit
23 hours agoLicense
Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.
Open Source Alternative to:
Build reliable AI apps with comprehensive observability
Stars
6,199Last commit
17 days agoLicense
Apache-2.0
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.
Open Source Alternative to:
Automated translations that scale with your code and commits
Stars
5,408Last commit
2 days agoLicense
Apache-2.0
Transform your app into a global product with AI-powered localization that integrates directly into your development workflow. Supports 83+ languages with Git-native automation.
Open Source Alternative to:
Open-source BI for modern data teams
Stars
6,173Last commit
6 hours agoLicense
MIT
Self-serve analytics platform that transforms dbt models into interactive dashboards, enabling data-driven decisions across organizations.
Open Source Alternative to:
Secure, scalable API key management for developers
Stars
5,457Last commit
9 hours agoLicense
AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.
Open Source Alternative to:
Build, automate, and improve AI agents with your team
Stars
4,805Last commit
6 hours agoLicense
MIT
Open-source workspace for building and running AI agents: chat-driven development, scheduling, human-in-the-loop approvals, versioning, and tracing. Self-host or use the cloud.
Open Source Alternative to:
Simulation-based testing and evaluation for AI agents
Stars
4,911Last commit
6 hours agoLicense
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source Alternative to:
Enterprise workplace AI with data you own and control
Stars
3,811Last commit
5 hours agoLicense
Apache-2.0
Self-hostable enterprise AI platform that unifies business data across apps, powers a knowledge graph for cited answers, and lets teams build AI agents across their stack.
Open Source Alternative to:
Build reliable AI agents with unified tool integration
Stars
4,905Last commit
4 months agoLicense
Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server
Open Source Alternative to:
Effortless group scheduling for seamless collaboration
Stars
5,285Last commit
7 hours agoLicense
AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
Open Source Alternative to:
Stateful AI agents that remember, learn, and improve over time
Stars
3,507Last commit
5 hours agoLicense
Apache-2.0
Build persistent AI agents with continuous memory, scheduled tasks, and multi-channel communication via Slack, Discord, and Telegram, using your own API keys.
Open Source Alternative to:
Browser and notebook combined with local-first AI
Stars
3,588Last commit
1 month agoLicense
Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.
Open Source Alternative to:
Create powerful forms with ease and flexibility
Stars
3,771Last commit
12 hours agoLicense
AGPL-3.0
A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.
Open Source Alternative to:
Create stunning data visualizations with ease
Stars
4,064Last commit
5 days agoLicense
MIT
A powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.
Open Source Alternative to:
AI-powered platform for engineering LLM products
Stars
3,295Last commit
1 day 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:
Effortlessly split expenses with friends and roommates
Stars
2,971Last commit
3 days agoLicense
MIT
A user-friendly app for tracking shared expenses, settling debts, and managing group finances with ease and transparency.
Open Source Alternative to:
Python, SQL, and AI in a collaborative data notebook
Stars
3,010Last commit
1 day 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:
Stripe payments, usage tracking, and paywalls in 3 functions
Stars
2,772Last commit
5 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
2,813Last commit
2 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:
Website analytics, uptime monitoring, and server status in one
Stars
3,100Last commit
15 hours agoLicense
Apache-2.0
Self-hostable platform combining website analytics, uptime monitoring, server status, Docker tracking, status pages, and telemetry for indie developers and small teams.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent
Stellar Hosted
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