The 10 best open source affiliate programs in 2025

Double Zero is an open-source email infrastructure platform that empowers users to fully own and control their email sending capabilities. Designed to simplify the deployment and management of email services, Double Zero provides an easy-to-use email API for sending transactional emails and supports advanced features like broadcasts and automations through its Pro version. With single-command deployment using SST, seamless setup of AWS services (SES, SNS, SQS, EC2, S3, Route 53), and a straightforward REST or JS API, users can quickly establish robust, scalable email infrastructure without relying on traditional third-party providers. The platform also offers features such as multi-recipient tracking, a WYSIWYG editor, SMTP endpoints, contact and list management, and team collaboration tools.

Double Zero is ideal for developers, SaaS businesses, and organizations seeking greater control, transparency, and cost-efficiency in their email operations. It stands out for its open and modifiable codebase, affordable pricing, and the ability to deploy within your own cloud environment, making it a compelling choice for privacy-conscious users and those looking to avoid vendor lock-in. Affiliates will find Double Zero attractive to promote, as it addresses a growing demand for customizable, developer-friendly email solutions that balance ease of use with full ownership and transparency.

Magic UI is a comprehensive UI library tailored for design engineers and developers who want to build visually stunning landing pages with ease. Featuring over 150 free and open-source animated components and effects crafted with React, Typescript, Tailwind CSS, and Motion, Magic UI streamlines the process of creating dynamic, interactive web experiences. Its Pro offering includes more than 50 ready-made blocks and templates, empowering users to assemble beautiful landing pages in just minutes. Designed as an ideal companion for shadcn/ui, the library also supports over 100 integrations, making it a powerful and flexible solution for modern web projects.

Magic UI is an excellent choice for developers, product teams, startups, and agencies looking to save time without compromising on design quality. Affiliates will find it appealing to promote due to its strong appeal among the growing community of React and Tailwind CSS users, its seamless integration with popular tools, and the proven adoption by notable companies and projects. With its blend of usability, flexibility, and visual impact, Magic UI is positioned as a go-to resource for anyone aiming to elevate their web design workflow.

Hugo Blox is a free, open-source, no-code website builder designed to empower technical creators, researchers, marketers, and teams to launch professional websites effortlessly. With a user base of over 250,000 and trusted by organizations like Nvidia and Princeton University, Hugo Blox offers an all-in-one platform for building landing pages, online courses, digital downloads, blogs, portfolios, resumes, and more. Its intuitive interface allows users to create and manage content online without any coding knowledge, utilizing pre-designed Tailwind blocks and future-proof Markdown files for maximum flexibility and data ownership. The platform is content-focused, privacy-first, and boasts a thriving community for support, all while leveraging the speed and reliability of Hugo’s static site generator.

Hugo Blox is ideal for educators, researchers, small businesses, marketers, and anyone looking to establish a robust online presence without technical barriers or vendor lock-in. Affiliates will find Hugo Blox an attractive offering thanks to its no-cost entry, strong community backing, and a value proposition centered on ease of use, ownership, and open-source freedom—making it a compelling choice for a wide range of audiences seeking a powerful yet accessible website solution.

Pagedone is a comprehensive Tailwind CSS component library designed to streamline the web development process for designers and developers. Featuring over 1,200 components, icons, variants, and color shades, as well as more than 700 base components and 310 ready-to-use blocks, Pagedone offers an extensive collection of modern, responsive UI elements. Users can access expertly crafted components for everything from buttons and navigation menus to entire page sections, all of which are fully customizable and compatible with the latest version of Tailwind CSS. The library also includes Figma resources and is trusted by thousands of professionals worldwide for its intuitive design and efficiency-boosting features.

Pagedone is ideal for web designers, developers, agencies, and product teams seeking to build attractive, functional interfaces quickly without reinventing the wheel. Its ease of use, regular updates, and open-source flexibility make it a valuable asset for anyone working with Tailwind CSS, while its commercial licensing ensures projects can scale from simple websites to complex SaaS applications. Affiliates will find Pagedone an appealing product to promote, as it addresses a common need in the web development community and enjoys high satisfaction and strong endorsements from industry professionals.

Once UI is an open-source design system and component library built specifically for Next.js and Figma, aimed at helping indie creators, developers, and teams launch products faster and with less hassle. It combines a flexible style system with highly functional, deployment-ready templates and components, allowing users to build websites, portfolios, e-commerce stores, and product documentation sites without extensive coding. With seamless integration between Figma and code, instant customization, and a focus on beautiful, accessible UI, Once UI empowers users to own their stack, monetize from day one, and deploy projects in minutes.

This solution is perfect for indie makers, agencies, developers, designers, and anyone looking to ship modern web projects quickly and professionally without reinventing the wheel. Affiliates will find Once UI an attractive offer for their audience thanks to its free and Pro plans, thriving community, ongoing updates, and the strong appeal to creators who value open-source tools and rapid product development.

Lara Zeus offers a comprehensive suite of open-source and premium plugins designed to supercharge Laravel and FilamentPHP projects. Their packages cover a wide range of functionalities, including advanced form and table components, appointment management, ticketing systems, blog and CMS solutions, and powerful tools for internationalization, SEO, and frontend customization. Each plugin is built with scalability and developer experience in mind, providing easy configuration, support for RTL and translations, seamless frontend integration, and the flexibility to extend or modify features as needed. All packages are crafted using the modern TALL stack, ensuring smooth compatibility and a rich development experience.

Lara Zeus is ideal for Laravel and FilamentPHP developers seeking to accelerate their workflow, enhance their applications, and deliver robust features without reinventing the wheel. Affiliates will find this program appealing to a growing market of PHP developers looking for high-quality, versatile components—making it a strong choice to promote to anyone building sophisticated web apps on the Laravel ecosystem.

Tabler is a modern, open-source UI kit and admin dashboard template designed to help developers and designers create sleek, user-friendly interfaces quickly and efficiently. Built on the latest version of Bootstrap 5 and leveraging Sass, Tabler offers over 100 customizable UI components, multiple layouts, and both dark and light modes to suit any project. With detailed documentation, premium vector icons, and a large selection of ready-to-use elements, Tabler makes it easy to build responsive, visually appealing web applications with minimal coding expertise required. The solution is fully compatible with all modern browsers and is available under the flexible MIT license, ensuring hassle-free usage in both personal and commercial projects.

Tabler is ideal for developers, designers, and businesses seeking a robust and flexible dashboard or admin template that accelerates project development without sacrificing quality or aesthetics. Affiliates will find Tabler an attractive program to promote due to its broad appeal, ease of use, affordable pricing, and generous 30% commission per sale. Its combination of open-source accessibility, premium features, and a thriving user base makes it a standout choice in the UI kit and admin template market.

Focu App is a mindful productivity tool designed to help users achieve a more balanced and effective workday through AI-guided journaling, smart check-ins, and thoughtful reflections. With a focus on privacy and user control, Focu runs entirely locally on your Mac and is fully open source, ensuring that all data remains on your device. Key features include a focus page with an integrated task list and Pomodoro timer, AI-powered task extraction from conversations, customizable keyboard shortcuts, automatic data backups, and both local and cloud AI options. The app also offers seamless light and dark mode transitions, making it both visually adaptable and easy to use throughout the day.

Focu App is ideal for individuals who want to boost productivity, maintain focus, and foster better work-life balance without compromising on data privacy. It's especially beneficial for those who value mindful work practices, need regular reminders, or wish to keep a daily journal. Affiliates will find Focu an attractive program to promote due to its unique combination of AI-driven features, privacy-first approach, and affordable lifetime pricing, appealing to productivity enthusiasts, remote workers, and anyone seeking to optimize their daily workflow.

Server Side Up is a platform dedicated to empowering developers and product builders with high-quality open source tools, premium solutions, and educational resources. By focusing on self-hosted products, Server Side Up enables users to maintain control over their software and data, avoiding the hidden costs and vendor lock-in common with many SaaS solutions. The platform offers a diverse suite of tools including Bugflow for product feedback, Spin Pro for rapid Laravel application deployment, production-ready Docker images, browser extension resources, and budgeting software, all supported by a vibrant and active developer community.

Ideal for developers, startups, and small teams who value ownership, flexibility, and quality in their software stack, Server Side Up provides solutions that help users build professional applications faster without sacrificing control or incurring enterprise-level costs. Affiliates will find this program attractive to promote, as it appeals to a growing audience seeking alternatives to expensive, restrictive platforms, while providing ongoing educational content and community support that drive engagement and trust.

Saas UI is a comprehensive React toolkit designed to help developers and startups build high-quality SaaS applications quickly and efficiently. It offers a robust library of over 40 open source components, including production-ready templates, authentication screens, forms, data tables, and more—all built on leading technologies like Chakra UI, React Hook Form, and React Table. Saas UI focuses on accessibility, themability, and composability, making it easy to customize and scale apps while drastically reducing boilerplate code. In addition to its developer-friendly features, Saas UI provides a Figma design system for seamless collaboration between developers and designers, ensuring consistent and visually appealing user interfaces.

This toolkit is an excellent choice for indie founders, startups, and development teams who want to accelerate their product development without sacrificing quality or flexibility. Affiliates will find Saas UI appealing to a broad audience, from solo developers to growing SaaS companies, thanks to its time-saving components, strong community support, and proven track record of helping users launch and scale products faster. Its focus on both developer experience and design excellence makes it a standout solution worth recommending.