Best UI Kits for Application Design in 2025

Introduction

In 2025, designing modern applications means moving faster, designing smarter, and building experiences users instantly trust. UI kits are no longer just nice-to-haves—they’re essential tools for designers and teams who want to maintain consistency, speed up workflows, and stay focused on solving real problems.

Whether you're building for mobile, desktop, or spatial interfaces, here are the best UI kits to consider this year.

1. Sigma Design System 2

Crafted with a focus on clarity and customization and amazing documentation, Sigma Design System 2 sets a new standard for UI kits. Every component looks adorably simple and feels intuitive when combined. What makes it stand out is its rich documentation and flexible design language—ideal for designing entire applications without visual clutter. The optional “on Material” mode adds a spatial, glassy aesthetic perfect for 2025 interfaces.

2. Untitled UI

Still one of the most complete Figma UI kits, Untitled UI remains a go-to for startups and design teams. It includes everything from typography to charts, and the file structure is clean, making it easy to customize for app projects of all sizes.

3. Setproduct

Known for its attention to detail, Setproduct's UI kits are polished and practical. Their kits work well for both mobile and desktop apps, and they offer Figma-native components with auto layout, variants, and interactive states out of the box.

4. Cabana Design System

Cabana is great for designers who want a simple but flexible starting point. It’s ideal for app interfaces where consistency matters and includes tons of pre-styled elements that save time without feeling generic.

5. UI Prep

UI Prep gives you a structured design system with accessible color palettes and highly responsive components. It’s especially helpful for teams that care about clean handoffs between design and development.

6. FlowBite

Tailored for those working with Tailwind CSS, FlowBite offers a Figma UI kit that mirrors real-world development-ready components. Perfect for prototyping applications that align with dev-first workflows.

7. Tetrisly

Focused on product design teams, Tetrisly offers scalable components and native tokens. It’s a great choice for teams designing and maintaining complex applications.

Why Use a UI Kit in 2025?

• Speed up workflows with ready-made components

• Maintain consistency across screens and platforms

• Stay focused on UX by reducing design busywork

• Collaborate better with developers using standardized elements

Conclusion

If you're building apps in 2025, the best UI kits offer more than just components—they give you a system to think, design, and collaborate faster. From Sigma Design System 2 to UI Prep and Tetrisly, each of these kits offers a different strength, whether it's modularity, design clarity, or developer-friendliness. Start with the one that fits your workflow best—and never design from scratch again.