Top 10 Open Source Alternatives to Flinto in 2025

As design tools continue to evolve, many open-source alternatives to Flinto have emerged, offering unique features and improvements in user interface design and prototyping. Here are ten open-source alternatives to Flinto, each with their strengths and specializations.

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1. Penpot

Open Source: Yes, under a Mozilla Public License 2.0.
Features: Vector editing, artboards, layers, interactive components.
Collaboration: Real-time collaboration with multiple users.
Platform: Web-based, accessible via any browser (cross-platform).
Design System: Flexible design system for enhancing team collaboration. Learn more about Penpot

2. Framer

Open Source: Yes, based on Framer.js.
Features: Design, draw, prototype, animation, custom transitions.
Integration: Can import creations to tools like Sketch.
Ease of Use: Beginner-friendly, makes creating animations and prototypes simple.
Prototyping: Enables creation of realistic animations and prototypes. Explore Framer

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3. Origami Studio

Open Source: Yes.
Features: Can be used to build app logic, prototype, and present designs to clients.
User Friendly: Easy to learn and use.
Prototyping: Used to create interactive interfaces and prototypes that closely resemble the final product.
Components: Includes a canvas for drawing, a patch editor for combining components, layer list for convenient views, and a patch library. Discover Origami Studio

4. Pencil Project

Open Source: Yes.
Platforms: Supports designing for desktop, mobile, and web applications.
Features: Drag-and-drop functionality, customizable templates, export options.
Elements: Library of built-in UI elements, and browser to access user-contributed icon collections.
Customization: Allows users to generate custom stencils from images and add custom fonts.

5. Alva

Open Source: Yes.
Component Library: Has an extensive library of pre-built components.
Collaboration: Supports real-time collaboration.
Interactive Animation: Supports features like component states and interactive animations.
Compatibility: Cross-platform compatibility ensuring accessibility for Windows, macOS, and Linux users. Learn more about Alva

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6. Lottie

Open Source: Yes, created by Airbnb.
Features: Supports in-app notifications and full-frame animated illustrations.
Platforms: Supports Android, iOS, and Windows.
Format: Renders JSON files exported from Adobe After Effects.
Use Case: Used by companies like Airbnb, demonstrating its reliability and quality. Explore Lottie

7. Avocado by IDEO

Open Source: Yes.
Framework: Built on Facebook's Origami framework.
Code Free: Allows creation of interactive prototypes without coding.
Components: Provides ready-to-use patches for creating custom prototypes.
Customization: Can be easily combined to create fully customizable prototypes. Discover Avocado

8. React

Open Source: Yes.
Functionality: Allows users to create interactive user interfaces.
Efficiency: Updates and renders only the necessary components as the data changes.
License: Available under the MIT license.
Use Case: Used for designing simple views for each state in an application. Learn more about React

9. Lunacy

Open Source: Not explicitly stated as open source, but free for personal and commercial use.
Platform: Runs on Windows, macOS, and Linux.
Purpose: Specifically for UI/UX and web design.
Features: Vector graphics software.
Speed: Presented as faster than Figma and smarter than Sketch. Explore Lunacy

10. Taipy

Open Source: Yes.
Language: Built using Python.
Features: GUI tools for dashboard design and scenario management.
Functionality: Allows testing of multiple data simulations.
Dashboards: Enables the user to build customized dashboards. Discover Taipy

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FAQ

1. What is Penpot and what are its key features?

Penpot is an open-source design and prototyping platform focused on team collaboration. It offers real-time co-editing, vector editing, artboards, layers, and interactive components. Explore Penpot

2. What functionalities does Framer offer as an open-source design tool?

Framer allows designers to create animations, prototypes, draw, animate, and design custom transitions. It's beginner-friendly and integrates well with other tools like Sketch. Discover Framer

3. What is Origami Studio used for?

Origami Studio, created by Facebook, is an open-source tool for building app logic, prototyping, and presenting designs. It features a canvas for drawing, a patch editor for combining components, and tools for creating interactive interfaces. Learn more about Origami Studio

4. Can you describe the Pencil Project?

Pencil Project is an open-source tool for creating wireframes and prototypes. It supports designing for desktop, mobile, and web applications and includes customizable templates and a library of built-in UI elements.

5. What is Alva and its main advantages?

Alva is an open-source tool for creating interactive component designs and prototypes with a focus on real-time collaboration. It offers an extensive library of pre-built components and supports interactive animations. Explore Alva

6. How does Lottie contribute to animation design?

Lottie is an open-source animation library that exports animations in JSON format, supporting multiple platforms like Android, iOS, and Windows. It renders files from Adobe After Effects and is used by companies like Airbnb. Discover Lottie

7. What are the key features of Avocado by IDEO?

Avocado is an open-source interaction design toolbox built on Facebook's Origami framework. It allows designers to create interactive prototypes without writing code, using ready-to-use patches. Learn more about Avocado

8. What makes React a popular choice for building user interfaces?

React is a free, open-source JavaScript library that allows users to create interactive user interfaces efficiently by updating and rendering necessary components. It is available under the MIT license. Explore React

9. What is Lunacy used for in UI/UX design?

Lunacy is a free vector graphic software specifically for UI/UX and web design, running on Windows, macOS, and Linux. It is noted for being faster than Figma and more intelligent than Sketch. Discover Lunacy

10. What is Taipy and how does it aid in data web applications?

Taipy is an open-source Python library designed to build AI and data web applications. It includes GUI tools for dashboard design, scenario management, and customization options for dashboards. Learn more about Taipy

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.