Top 10 Open Source Alternatives to Justinmind in 2025
As Justinmind continues to be a popular choice for wireframing and prototyping, 2025 has brought forward a number of great open source alternatives that offer unique features and capabilities. Whether you are looking for more collaboration features, better pricing, or different functionalities, this article explores the top 10 open source alternatives to Justinmind in 2025, comparing them based on key data points such as collaboration features, platforms, and overall ease of use.
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1. Figma
- Open Source: No, but offers a robust free plan.
- Collaboration: Real-time collaboration with multiple users.
- Platforms: Browser-based, with desktop applications.
- Features: Includes vector drawing tools, prototyping capabilities, design libraries, and a large plugin ecosystem.
- Free plan limitations: Limited to 3 projects and 2 editors. Learn more about Figma
2. Penpot
- Open Source: Yes
- Collaboration: Built for collaboration, supporting teams working on the same project.
- Platforms: Web-based.
- Features: Vector graphics editor, prototyping features, libraries, and is focused on being standards-compliant.
- Development: Actively developed and supported by the community. Explore Penpot
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3. Pencil Project
- Open Source: Yes
- Collaboration: Not built for real-time collaboration but files can be shared and worked on sequentially.
- Platforms: Desktop application (cross-platform)
- Features: Pre-built stencils and templates, diagramming capabilities, and basic drawing tools.
- Ease of Use: Known for being a simple and easy-to-use tool. Discover Pencil Project
4. Whimsical
- Open Source: No, but offers a free plan.
- Collaboration: Offers real-time collaboration.
- Platforms: Browser-based.
- Features: Includes built-in components, icon library, AI-enabled mind mapping, and unlimited personal boards that can be exported to high-resolution PDFs.
- Free plan limitations: 3 collaborative boards with unlimited view-only guests. Check out Whimsical
5. Mydraft.cc
- Open Source: Yes
- Collaboration: Collaboration is through sharing the project URL.
- Platforms: Browser-based.
- Features: Basic wireframing tools and a clean, simple interface.
- Simplicity: Easy to use and very lightweight. Explore Mydraft.cc
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6. Mockplus
- Open Source: No, but offers a free plan.
- Collaboration: Strong collaboration features, including co-editing and commenting.
- Platforms: Desktop app and Cloud-based.
- Features: Drag-and-drop interface, a wide array of components, and design systems.
- Free plan limitations: Limited to 10 users and 5 projects. Learn more about Mockplus
7. Wireframe.cc
- Open Source: No, but is free to use.
- Collaboration: Simple URL sharing for collaboration.
- Platforms: Browser-based.
- Features: Minimalist wireframing tools with an emphasis on low-fidelity designs.
- Ease of Use: Very easy and quick to use. Discover Wireframe.cc
8. Vectr
- Open Source: No, but is free to use.
- Collaboration: Enables sharing of designs for collaboration.
- Platforms: Browser based and desktop app.
- Features: Vector graphics editor with free tools and high-resolution export capabilities.
- Simplicity: A straightforward and easy to use design tool. Learn more about Vectr
9. Avocado
- Open Source: Yes
- Collaboration: Requires the use of external tools for real-time collaboration.
- Platforms: Built on top of Facebook’s Origami framework, can run on multiple platforms.
- Features: Provides pre-built patches that can be combined to create interactive prototypes.
- Coding: Does not require any coding knowledge to use the platform. Explore Avocado
10. LVGL & SquareLine Studio
- Open Source: Yes (LVGL)
- Collaboration: Collaboration depends on the workflow and versioning systems used in conjunction with the tool.
- Platforms: Cross-platform (LVGL), Desktop app (SquareLine Studio)
- Features: LVGL has no external dependencies and it can be used on any MCU or display type. SquareLine Studio includes numerous built-in tools, layout managers, and styling options for simplifying development.
- Focus: Primarily focused on embedded systems and UIs. Discover LVGL and SquareLine Studio
This information should provide a good starting point for exploring open-source alternatives to Justinmind in 2025.
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FAQ
1. What is Figma and is it open-source?
Figma is a very popular cloud-based design and prototyping tool used for creating wireframes, mockups, and interactive prototypes. It is not open-source but offers a robust free plan. Learn more about Figma
2. What are the benefits of using Penpot?
Penpot is an open-source design and prototyping platform built for teams. It supports real-time collaboration and provides a vector graphics editor with prototyping features. Discover Penpot
3. How does Pencil Project facilitate offline usage?
Pencil Project is an open-source GUI application designed for creating diagrams and GUI prototypes. It can be downloaded and used offline on multiple platforms. Explore Pencil Project
4. What features does Whimsical offer in its free plan?
Whimsical is a browser-based tool for creating wireframes, flowcharts, and mind maps. The free plan includes unlimited personal boards and 3 collaborative boards with unlimited view-only guests. Learn more about Whimsical
5. How does Mydraft.cc facilitate project sharing?
Mydraft.cc is an open-source, browser-based wireframing tool that saves projects using URLs, which can be easily shared for collaboration. Check out Mydraft.cc
6. What are the key features of Mockplus?
Mockplus is a comprehensive design platform for creating wireframes, mockups, and interactive prototypes. It includes a drag-and-drop interface and offers strong collaboration features. Discover Mockplus
7. How is Wireframe.cc designed for simplicity and speed?
Wireframe.cc is a free, browser-based wireframing tool with minimalist tools focused on low-fidelity designs, making it very easy and quick to use. Explore Wireframe.cc
8. What does Vectr offer as a graphics editor?
Vectr is a free graphics editor platform that can be used to create low-fidelity prototypes, wireframes, and mockups, with built-in tools for vector graphics and high-resolution export capabilities. Learn more about Vectr
9. How can designers benefit from Avocado?
Avocado, built by IDEO, is an open-source interaction design toolbox that enables designers to create quick, interactive prototypes without coding. Discover Avocado
10. What makes LVGL & SquareLine Studio suitable for embedded systems?
LVGL is an open-source embedded graphics library, while SquareLine Studio is a drag-and-drop UI editor that simplifies development for embedded systems. Learn more about LVGL | Explore SquareLine Studio
References
About the Author
Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.
Violetta is a true multiple specialist who has built expertise in Linguistics, Education, Business Management, Blockchain, Entrepreneurship, Intellectual Property, Game Design, AI, SEO, Digital Marketing, cyber security and zero code automations. Her extensive educational journey includes a Master of Arts in Linguistics and Education, an Advanced Master in Linguistics from Belgium (2006-2007), an MBA from Blekinge Institute of Technology in Sweden (2006-2008), and an Erasmus Mundus joint program European Master of Higher Education from universities in Norway, Finland, and Portugal (2009).
She is the founder of Fe/male Switch, a startup game that encourages women to enter STEM fields, and also leads CADChain, and multiple other projects like the Directory of 1,000 Startup Cities with a proprietary MeanCEO Index that ranks cities for female entrepreneurs. Violetta created the "gamepreneurship" methodology, which forms the scientific basis of her startup game. She also builds a lot of SEO tools for startups. Her achievements include being named one of the top 100 women in Europe by EU Startups in 2022 and being nominated for Impact Person of the year at the Dutch Blockchain Week. She is an author with Sifted and a speaker at different Universities. Recently she published a book on Startup Idea Validation the right way: from zero to first customers and beyond and launched a Directory of 1,500+ websites for startups to list themselves in order to gain traction and build backlinks.
For the past several years Violetta has been living between the Netherlands and Malta, while also regularly traveling to different destinations around the globe, usually due to her entrepreneurial activities. This has led her to start writing about different locations and amenities from the POV of an entrepreneur. Here’s her recent article about the best hotels in Italy to work from.
About the Publication
Fe/male Switch is an innovative startup platform designed to empower women entrepreneurs through an immersive, game-like experience. Founded in 2020 during the pandemic "without any funding and without any code," this non-profit initiative has evolved into a comprehensive educational tool for aspiring female entrepreneurs.The platform was co-founded by Violetta Shishkina-Bonenkamp, who serves as CEO and one of the lead authors of the Startup News branch.
Mission and Purpose
Fe/male Switch Foundation was created to address the gender gap in the tech and entrepreneurship space. The platform aims to skill-up future female tech leaders and empower them to create resilient and innovative tech startups through what they call "gamepreneurship". By putting players in a virtual startup village where they must survive and thrive, the startup game allows women to test their entrepreneurial abilities without financial risk.
Key Features
The platform offers a unique blend of news, resources,learning, networking, and practical application within a supportive, female-focused environment:
- Skill Lab: Micro-modules covering essential startup skills
- Virtual Startup Building: Create or join startups and tackle real-world challenges
- AI Co-founder (PlayPal): Guides users through the startup process
- SANDBOX: A testing environment for idea validation before launch
- Wellness Integration: Virtual activities to balance work and self-care
- Marketplace: Buy or sell expert sessions and tutorials
Impact and Growth
Since its inception, Fe/male Switch has shown impressive growth:
- 3,000+ female entrepreneurs in the community
- 100+ startup tools built
- 5,000+ pieces of articles and news written
Partnerships
Fe/male Switch has formed strategic partnerships to enhance its offerings. In January 2022, it teamed up with global website builder Tilda to provide free access to website building tools and mentorship services for Fe/male Switch participants.
Recognition
Fe/male Switch has received media attention for its innovative approach to closing the gender gap in tech entrepreneurship. The platform has been featured in various publications highlighting its unique "play to learn and earn" model.
