Open Source SaaS Products
Discover the best open source software for your business needs.
Autumn is a streamlined and flexible platform designed to simplify pricing and billing for app founders, especially AI startups. By integrating directly with Stripe, Autumn enables users to effortlessly set up and manage complex pricing models with just a few functions. The platform supports tracking usage limits, managing feature entitlements, credits, and add-ons, providing comprehensive control over monetization strategies. Autumn’s intuitive approach reduces the complexity of payment infrastructure, allowing developers to focus on building their products rather than handling billing logistics. Its seamless integration and developer-friendly API make it an ideal solution for startups looking to scale efficiently while maintaining precise control over customer billing and feature access. Autumn effectively bridges the gap between product development and payment management, making Stripe easy and accessible for AI-driven businesses.
Ikiform is an open-source form builder designed as a powerful alternative to popular platforms like Google Forms and Typeform. It enables users to create beautiful, interactive, and customizable forms and surveys with ease. Ikiform focuses on providing a budget-friendly solution without compromising on features or user experience. With Ikiform, users can effortlessly build questionnaires, collect responses, and analyze data in a streamlined manner. Its open-source nature offers flexibility and transparency, allowing developers and organizations to tailor the platform to their specific needs. Ikiform is ideal for businesses, educators, and developers seeking a reliable, privacy-conscious, and extensible form creation tool. It supports a variety of use cases including customer feedback, event registrations, market research, and more, making data collection simple and efficient.
What To Build is an innovative platform designed to help developers and creators discover, analyze, and plan open-source projects effectively. Leveraging AI-powered insights, it provides users with tailored project ideas and helps identify similar repositories to inspire and guide their development journey. The platform offers a unique visual planning tool that breaks down project components, enabling users to understand the scope and structure before diving into coding. By aggregating and analyzing relevant open-source projects, What To Build streamlines the ideation and research phase, making it easier for users to find meaningful and feasible projects to work on. Whether you are a beginner looking for guidance or an experienced developer seeking inspiration, What To Build serves as a comprehensive resource to transform concepts into actionable development plans, fostering productivity and innovation in the open-source community.
AgentTalk is an innovative AI marketplace designed to facilitate seamless interactions between autonomous AI agents. It acts as a transaction layer that standardizes discovery, escrowed payments, and secure execution for agent-to-agent workflows. By enabling AI agents to hire other AI agents, AgentTalk creates a dynamic ecosystem where specialized agents can be discovered and engaged efficiently. The platform offers transparent, compute-as-commodity pricing with no hidden fees, ensuring clear unit economics for users. Its escrowed transaction system guarantees secure and verifiable payments that are automatically released upon task completion, fostering trust and reliability. AgentTalk empowers developers and businesses to automate complex workflows by leveraging a network of AI agents, enhancing productivity and operational efficiency. With real-time network activity metrics and pilot partnerships, AgentTalk is positioned as a critical infrastructure for the future of autonomous AI collaboration.
Supabase CMS is an open-source content management system designed specifically to integrate seamlessly with Supabase's backend services. It enables developers and businesses to build production-grade applications by leveraging a CMS that connects directly to Supabase's Postgres database, authentication, and storage solutions. This tight integration allows for real-time data updates, secure user authentication, and efficient media management, all within a unified platform. Supabase CMS simplifies the development workflow by providing an intuitive interface for managing content, while maintaining the flexibility and power of Supabase’s scalable backend infrastructure. Ideal for developers seeking a modern, open-source alternative to traditional CMS platforms, Supabase CMS supports rapid application development with minimal configuration. It is especially suited for projects that require real-time capabilities, robust database management, and seamless authentication, making it a compelling choice for startups, SaaS products, and digital platforms looking to leverage the full potential of Supabase’s ecosystem.
SelfHostLLM is a specialized GPU memory calculator designed to help users efficiently plan and manage the resources needed for self-hosted large language model (LLM) inference. It supports popular models such as Llama, Qwen, DeepSeek, and Mistral, enabling users to estimate GPU VRAM requirements and the maximum number of concurrent requests their hardware can handle. By factoring in model size, quantization, context length, and system overhead, SelfHostLLM provides a detailed breakdown of memory usage, helping developers and AI infrastructure planners optimize deployment configurations. This tool is essential for anyone running LLMs locally or on private servers, ensuring cost-effective and performant AI inference without over-provisioning hardware. With its clear formulas and step-by-step calculations, SelfHostLLM empowers users to make informed decisions about GPU allocation, model selection, and expected throughput, bridging the gap between complex AI models and practical hardware constraints.
Bublr is an open-source, ultra-minimal writing community designed to provide a raw and uncluttered space for anyone to write anything. It offers a distraction-free environment where writers can freely share their thoughts, stories, and ideas without the interference of ads or paywalls. Emphasizing simplicity and openness, Bublr fosters a genuine community experience that values content over commercial interests. Its minimalist design and straightforward interface make it easy for users to focus purely on writing and reading, encouraging creativity and authentic expression. By removing common barriers and distractions found on conventional blogging platforms, Bublr supports a more organic and inclusive approach to online writing and sharing.
GPT-OSS Live is a comprehensive navigation hub designed to streamline access to open-source GPT resources and tools. It serves as a centralized portal for developers, researchers, and AI enthusiasts to discover and utilize a wide range of GPT-OSS models, including large-scale 120B and 20B parameter models. The platform aggregates valuable resources such as APIs, tutorials, deployment guides, and integrations with popular frameworks like Ollama, VLLM, and Hugging Face. By consolidating these tools and information, GPT-OSS Live accelerates the adoption and implementation of open-source GPT technologies, enabling users to efficiently build, deploy, and experiment with advanced AI models. Its user-friendly interface and curated content make it an essential resource for anyone involved in the AI ecosystem looking to leverage open-source GPT innovations for various applications, from research to production.
GPTfake is an advanced AI transparency and bias detection platform designed to monitor the behavior of large language models (LLMs) such as GPT. It provides real-time tracking and analysis of AI responses to detect biases, censorship, and ethical concerns, ensuring that AI systems operate fairly and transparently. By leveraging sophisticated algorithms, GPTfake helps organizations and developers identify and mitigate unintended AI biases, promoting responsible AI development and deployment. The platform offers comprehensive transparency tools that enable users to audit, monitor, and understand AI decision-making processes, fostering trust and accountability in AI technologies. GPTfake is essential for anyone looking to maintain ethical standards in AI applications, providing actionable insights to improve AI fairness and reduce discriminatory outcomes. Its services cater to AI researchers, developers, and enterprises focused on ethical AI governance and compliance.
GitPodcast: Private Mode is an innovative tool that transforms any GitHub repository into an engaging podcast in seconds. Designed for developers, software engineers, and tech enthusiasts, it enables users to understand complex codebases through an audio format that simplifies the exploration of software architecture, system design, and code structure. By converting repository content into a podcast, GitPodcast facilitates learning and collaboration, making it easier to grasp the intricacies of open source projects or private repositories. This approach enhances productivity by providing an alternative to reading dense documentation or code, allowing users to absorb information on the go. The Private Mode feature ensures secure access to private repositories, maintaining confidentiality while delivering insightful audio summaries. GitPodcast integrates seamlessly with GitHub, offering a unique blend of technology and communication that supports software development, education, and knowledge sharing within teams and communities.
ZapQ is a lightning-fast in-memory FIFO queue server designed to provide high-performance queuing capabilities for applications requiring rapid and efficient task processing. Built to handle real-time workloads, ZapQ excels in scenarios where low latency and quick data throughput are critical. Its in-memory architecture ensures minimal delay in enqueueing and dequeueing operations, making it ideal for use cases such as messaging, job scheduling, and event streaming. ZapQ supports seamless integration with modern development environments, offering a simple yet powerful API that enables developers to implement reliable queueing mechanisms without the overhead of traditional disk-based systems. By focusing on speed and efficiency, ZapQ empowers businesses and developers to build scalable, responsive applications that can handle high volumes of concurrent tasks effortlessly. Whether deployed in microservices architectures, real-time analytics pipelines, or distributed systems, ZapQ stands out as a robust solution for managing asynchronous workflows with precision and speed.
WebScreen is a hackable, open-source gadget designed for gamers, geeks, and creators who want to stay connected without losing focus. It serves as a secondary display that delivers essential notifications, reminders, and updates directly to your setup, allowing you to keep track of important information while gaming, streaming, or working. Featuring an AMOLED screen, WebScreen offers vibrant visuals and smooth animations to enhance your digital experience. It integrates seamlessly with calendars and apps to provide timely nudges and reminders, boosting productivity and ensuring you never miss a beat. As an open-source project, WebScreen encourages customization and community-driven improvements, making it a versatile tool for tech enthusiasts who want to personalize their notification system. Available through Crowd Supply, WebScreen is a perfect sidekick to level up your workspace or gaming station with a stylish, functional, and privacy-respecting device.
Black Trigram (흑괘) is an immersive Korean martial arts combat simulator that offers a realistic 2D fighting experience rooted in authentic traditional techniques. The game emphasizes precision and strategy by teaching players to master 70 vital anatomical points, enabling detailed and effective combat training. Drawing inspiration from the I Ching philosophy and Budokan martial arts, Black Trigram integrates the ancient Eight Trigram combat system, providing a unique blend of cultural heritage and modern gameplay. Players can choose from five distinct fighter archetypes—Warrior, Assassin, Hacker, Intelligence Agent, and Gangster—each with specialized combat styles and tactics. Designed for multiple platforms including web browsers and mobile devices, this educational game serves both martial arts enthusiasts and gamers seeking a deep, skill-based fighting simulator. Its focus on anatomical targeting and traditional Korean martial arts styles like Taekwondo, Hapkido, and Taekkyeon makes it a valuable tool for learning and practicing combat techniques in a virtual environment. Black Trigram stands out as a sophisticated training and entertainment platform that bridges cultural tradition with interactive technology.
DDD Sketch is a professional tool designed to facilitate Domain-Driven Design (DDD) and software architecture. It offers an interactive guide that helps teams transform ideas into structured architecture by bridging the gap between business and technology through a shared language. The platform integrates AI to assist users in creating automatic C4 diagrams and versionable artifacts, enhancing clarity and collaboration in complex software projects. DDD Sketch emphasizes strategic alignment by connecting business concepts with technical implementation, making it easier for developers and stakeholders to communicate effectively. Currently in beta, it provides a modern and intuitive interface tailored for architects, developers, and product teams aiming to adopt domain-driven design principles efficiently. By automating diagram generation and supporting iterative design, DDD Sketch streamlines the architectural design process, enabling better decision-making and documentation throughout the software development lifecycle.
Open SaaS is a free, open-source boilerplate designed to help developers build and launch SaaS applications rapidly. It provides a comprehensive starter kit featuring essential functionalities such as authentication, payments integration, an AI example app, and an admin dashboard. Built on modern technologies like React and NodeJS and powered by Wasp, Open SaaS streamlines the development process by offering a ready-to-use foundation that covers the common needs of SaaS products. This allows teams to focus on unique features and faster time-to-market rather than reinventing core infrastructure. Its open-source nature encourages customization, transparency, and community-driven improvements, making it an ideal choice for startups, indie developers, and companies looking to accelerate their SaaS product development with a scalable and extensible framework.
DevNotify is an open-source platform designed to help developers effortlessly track their starred GitHub repositories and issues. By providing real-time updates on project changes, DevNotify ensures users stay informed about the latest developments in their favorite open source projects. This tool simplifies the process of monitoring repositories, enabling developers to identify contribution opportunities quickly and efficiently. With its intuitive interface, DevNotify enhances productivity by consolidating notifications and updates in one place, reducing the need to manually check multiple repositories. Ideal for open source enthusiasts and contributors, DevNotify fosters better engagement with projects by keeping users connected to important issue discussions and repository activities. Whether you want to stay on top of bug fixes, feature requests, or general repository updates, DevNotify streamlines the workflow, making open source contribution tracking seamless and effective.
Wan2.2 is a cutting-edge open-source video generation model developed with a Mixture of Experts (MoE) architecture, enabling advanced AI-driven cinematic control. It specializes in transforming text and images into high-quality 720P videos, making video creation accessible and customizable for developers and creators alike. By leveraging innovative diffusion models, Wan2.2 offers precise control over each shot, allowing users to generate visually compelling videos with fine-grained direction. The platform is designed for seamless integration and experimentation, providing a powerful toolset for AI video creation that supports diverse applications ranging from marketing content to creative storytelling. Wan2.2’s open-source nature encourages community collaboration and continuous improvement, positioning it as a pioneering solution in the AI video generation space. Users can download the model on GitHub and harness its capabilities to produce cinematic videos efficiently and creatively.
OpenResty Manager is a free and open-source management panel designed to simplify and enhance the administration of OpenResty servers and hosting environments. It provides an intuitive and powerful interface that enables users to easily configure, monitor, and manage OpenResty instances without the need for complex command-line operations. The platform supports seamless host management, allowing administrators to handle multiple sites and services efficiently. With features focused on usability and performance, OpenResty Manager streamlines server maintenance tasks, improves deployment workflows, and enhances security configurations. It is ideal for developers and system administrators looking for a robust yet user-friendly solution to manage OpenResty-based web servers and hosting infrastructures. The panel's open-source nature encourages community contributions and customization, making it adaptable to diverse hosting scenarios and scalable for growing needs.
mkinf is an innovative open-source platform that hosts a comprehensive library of AI agents and tools designed to empower developers and organizations. By providing a centralized hub for AI-driven functionalities, mkinf enables seamless integration and deployment of intelligent agents across various applications. The platform supports a wide range of AI capabilities, from natural language processing to automation, facilitating enhanced productivity and smarter workflows. Its open-source nature encourages collaboration, customization, and continuous improvement by the community, making it a versatile resource for AI enthusiasts and professionals alike. Whether building conversational bots, automating tasks, or experimenting with AI models, mkinf offers a robust, scalable, and accessible environment to accelerate AI adoption and innovation.
GLM-4.5 is an advanced open-source large language model developed by Zhipu AI, featuring a massive 355 billion parameter architecture based on Mixture of Experts (MoE) technology. This state-of-the-art AI model is designed to deliver powerful agentic capabilities, enabling it to perform complex reasoning, multi-turn dialogue, and diverse natural language understanding and generation tasks with high accuracy and efficiency. GLM-4.5 supports commercial use under the permissive MIT license, making it accessible for developers, researchers, and enterprises seeking to integrate cutting-edge AI into their applications. Its scalable MoE architecture allows dynamic routing of inputs to specialized expert subnetworks, optimizing computational resources while maintaining superior performance. As one of the top-ranked open-source large language models globally, GLM-4.5 is ideal for applications in natural language processing, AI assistants, automated content creation, and intelligent decision-making systems. By combining openness, scale, and agentic intelligence, GLM-4.5 empowers the AI community to innovate and deploy next-generation AI solutions with transparency and flexibility.
Waviz Visualization Library is a React-based toolkit designed to simplify real-time audio visualization for developers. Leveraging the power of the Web Audio API, Waviz delivers high-performance, low-latency rendering of smooth and responsive waveforms and other audio visuals directly onto the canvas. It is ideal for applications such as audio players, DJ apps, and immersive sound experiences, ensuring visuals stay perfectly synced with audio input. The library offers modular, customizable React components that are themeable and easy to integrate, allowing developers to tailor styles and behaviors with minimal setup. Waviz Core provides a lightweight engine that balances performance and flexibility, enabling rapid prototyping or full-scale application integration with just a few lines of code. Additionally, the Plug-n-Play components enable developers to quickly drop responsive visualizers into their React apps without boilerplate, focusing on building engaging user experiences rather than infrastructure. Overall, Waviz empowers developers to turn sound into stunning, real-time visuals with ease and efficiency.
BareCMS is a lightweight, open-source headless content management system designed with minimalism and developer experience in mind. It offers a clean, performant API-first approach that enables developers to manage content efficiently without unnecessary bloat. With a small Docker image size of just 1.2MB and API response times under 50 milliseconds, BareCMS is optimized for speed and simplicity. It is MIT licensed, ensuring freedom to use and modify the software. BareCMS is ideal for developers seeking a straightforward CMS solution that integrates seamlessly with modern web technologies like Go, React, and Docker. Its minimalist design focuses on providing essential CMS features without overwhelming complexity, making it perfect for projects that require fast, reliable content management with a minimal footprint. The system supports easy quick-start options and comprehensive documentation, empowering developers to get up and running quickly while maintaining full control over their content infrastructure.
AI SDK 5 by Vercel is a powerful AI toolkit designed specifically for TypeScript developers, enabling seamless integration of advanced AI capabilities into modern web applications. Created by the makers of Next.js, this SDK simplifies the process of building AI-powered features by providing a robust, developer-friendly interface that leverages cutting-edge machine learning models. It supports scalable, production-ready AI workflows with optimized performance and easy deployment on Vercel’s platform. The SDK offers tools for natural language processing, image recognition, and other AI-driven functionalities, empowering developers to enhance user experiences with intelligent automation and contextual understanding. With AI SDK 5, teams can accelerate development cycles, reduce complexity, and maintain type safety throughout the AI integration process, making it an ideal choice for building next-generation applications that require reliable and efficient AI solutions.
Repohistory 2.0 is an open-source analytics platform designed to provide detailed insights into GitHub repository traffic beyond the standard 14-day limitation imposed by GitHub. It offers users extended historical data tracking with beautiful and intuitive visualizations, enabling developers, teams, and project managers to monitor repository activity over longer periods. By aggregating and presenting traffic data such as views, clones, and referrers, Repohistory 2.0 empowers users to better understand their project's audience engagement and growth trends. The platform is ideal for open-source maintainers and organizations seeking deeper analytics to optimize their development workflows, improve community engagement, and make data-driven decisions. With an easy-to-use interface and integration with GitHub, Repohistory 2.0 enhances repository management by providing actionable metrics that go beyond GitHub's native analytics capabilities.