Build scalable products in Figma faster

A production-ready design system with components, variables and documentation for professional UX and UI designers.

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One-off payment

Free updates

Instant download

Lifetime usage

112Component Sets
722Variants
445Variables
2Themes
3Breakpoints
12Use Cases

Why Flex Exists

Built from experience. Refined through use. Designed to scale

Design systems are often too rigid, too shallow or too complex to maintain in real product work. Flex Design System gives you a structured, flexible foundation for building scalable products in Figma. Designed and built by hand since 2023 by UX designer Ben Ellis. Every variable and component is based on what Ben has seen work on client projects over more than 25 years. In 2026, he used Figma Agent and Claude to audit the library for gaps, inconsistencies and text contrast, then decided what to fix and strengthened the documentation so Flex works well with AI agents.

Ben Ellis

Founder, Flex Design System

UX Portfolio LinkedIn

What's included

Everything you need to build scalable products

A complete Figma design system for building consistent, scalable products.

Organised for clarity
Logically named and scoped design tokens make the system easier to understand, customise and scale.
Flexible and adaptable
Flexible, production-ready components with variants and overrides that adapt to real product requirements.
Composable layouts
Composable layouts powered by slots make it easy to add, remove and rearrange content while maintaining consistency.
Responsive by design
Responsive foundations and scalable layouts help you design confidently across multiple screen sizes.
Light and dark themes
Built-in light and dark themes provide a flexible foundation for creating accessible, customisable experiences.
Auto-layout ready
Auto-layout-ready components reduce repetitive work and make interfaces easier to adapt and maintain.
Built for flexibility
Built to be customised and extended, giving teams the flexibility to adapt the system to their own products and workflows.
Ready for AI agents
Guidelines files help Figma's AI agent use Flex: which variables, components and breakpoints to choose, and which mistakes to avoid.
Documentation with context
Integrated documentation, a companion website and practical guides help you learn, adopt and scale with confidence.

Organised for clarity
Carefully structured and scoped variables, organised into logical collections, make Flex Design System easier to understand, customise and scale while providing valuable context for modern AI-assisted workflows.
Flexible and adaptable
Thoughtfully designed components, paired with variants and overrides, make Flex Design System easy to adapt to different products and requirements while maintaining consistency and scalability.
Composable layouts
Built-in slots allow content and components to be added, removed and rearranged with ease, making it simple to create adaptable interfaces while maintaining consistency and structure.
Design with real content
Use components as a foundation and quickly populate them with realistic content using variable modes, Google Sheets, JSON or Figma Agent. Design with meaningful data that better reflects real products and workflows.
Built for AI-assisted design
Flex was built by hand, then audited with Figma Agent and Claude in 2026 to fill gaps, fix inconsistencies and add the context that agents need. It comes with guidelines for Figma's AI agent. Upload them to your library once, and the agent reads them every time it designs with Flex. They point it towards semantic variables instead of hard-coded colours, theme and breakpoint modes, and the right component for each job. Combined with descriptions on every variable and component, they give AI tools more of the context they need to work with your design system.
Text contrast checked in both modes
Every text colour in Flex meets WCAG AA contrast in Light and Dark mode. I used Claude, through Figma MCP, to scan about 1,500 text layers per mode across every component and state. I fixed the tokens that fell short myself, and rescanned until all of them passed. Disabled states are exempt, as WCAG allows.
Templates and flows
Ready-made templates and user flows demonstrate how components work together in real product scenarios, helping you explore ideas faster and design with greater confidence.
Supported by documentation
Built-in documentation, a companion website and in-depth articles make Flex Design System easier to learn, adopt and extend, helping you get productive faster and with greater confidence.

Designed for real-world products

Build realistic interfaces and user journeys across a wide range of product types. Flexible foundations make it easy to adapt Flex Design System to your own domain and requirements.

From Wireframes to Polished UI

Minimal by design and intentionally styled for UX work, the built-in light and dark themes can be easily extended, helping you move seamlessly from early concepts to polished interfaces.

Figma Design System components styled in light mode

Figma Design System components styled in dark mode

Responsive

Grids, components, and typography are responsive by default. Spacing tokens and automatic instance swapping allow you to quickly mock up consistent designs across multiple breakpoints.

A selection of mobile wireframes styled in dark mode.

What's Included

Packed with professionally crafted features to improve the quality, speed, and consistency of your work.

Accordions
Alerts
Avatars
Badges
Breadcrumbs
Buttons
Cards
Carousels & Sliders
Data

Device Frames
Dividers
Documentation
Features
Feeds
Footers
Galleries
Heroes
Icons

Inputs
Lists
Logos
Modals
Navigation
Pagination
Placeholders
Presentation Slides
Progress Bars

Sidebars
Sitemaps
Tables
Tabs
Toasts
Tooltips
User Flows

What Designers Are Saying

Praise from leading designers already using Flex Design System.

Gabor Boszormenyi

Senior UI Designer

This UX Kit is a game-changer for my design process! With its extensive set of components, I was able to produce high-quality wireframes for my clients in no time. The automatic breakpoints save so much effort, ensuring designs are responsive from the start, and the fully tokenised components make customisation seamless and efficient. It’s an excellent tool that truly elevates the quality and speed of my work!

Ian Weir

Senior Product/UX Designer

What sets Flex apart isn’t just the quality of the components- it’s the care and craft behind them. Every aspect feels reassuringly considered and detailed. It covers many sectors and use cases, yet it’s clearly explained with extensive documentation. It’s become the go-to resource for any project.

Rafael Kent

Senior UI Designer

The Flex design system kit is a comprehensive and well-documented resource for quickly creating wireframes and user journeys. Freelancers and in-house designers alike will find it invaluable for meeting client expectations and deadlines. Its robust features and polished aesthetic make it a truly valuable tool.

Blog

Behind Flex Design System

Explore practical articles on design systems, Figma workflows and scalable product design

Why Flex

Why designers choose Flex

Packed with professionally crafted features to improve the quality, speed, and consistency of your work.

Every variable and component based on real client projects
Built by hand, then audited with AI for gaps and inconsistencies
Text contrast checked to WCAG AA in Light and Dark mode
Structured to scale
Designed for real UX workflows
Flexible enough for complex products
Documentation included with every component
Includes guidelines for Figma’s AI agent
One-off purchase with free updates, no subscriptions or renewals

Start designing faster today

Select the licence that best suits your needs.

Single Licence
£29.99 *
For Individual Designers
- Single user
- Use on unlimited projects
- One-off payment
- No subscription
- Instant download
- Lifetime usage
- Free updates
- WCAG AA text contrast (Light & Dark)
Buy Now
Team Licence
£49.99 *
For Small Teams
- Limited to 5 users
- Use on unlimited projects
- One-off payment
- No subscription
- Instant download
- Lifetime usage
- Free updates
- WCAG AA text contrast (Light & Dark)
Buy Now
Unlimited Licence
£89.99 *
For Large Teams
- Unlimited users
- Use on unlimited projects
- One-off payment
- No subscription
- Instant download
- Lifetime usage
- Free updates
- WCAG AA text contrast (Light & Dark)
Buy Now

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Still got doubts?

Still wondering if Flex Design System is right for you? Check out the FAQ to address any doubts, or reach out with your questions.

Can a beginner use Flex Design System?
Absolutely. Flex Design System was created for both professionals and those learning Figma and UX Design. The online documentation provides a comprehensive explanation of everything you need to get started quickly.
Can Flex DS be used for UI design?
Flex Design System was primarily created to provide UX designers with a comprehensive suite of consistently styled components for producing world-class UX documentation. However, its fully customisable and extensive design also makes it easy for UI designers to use.
Does Flex work with Figma's AI agent?
Yes. Flex includes guidelines files that you upload to your library. The agent reads them whenever it designs with Flex, which helps it choose the right variables, components and modes. As with any AI output, check the result before you use it. Guidelines need a Figma Professional plan or above. See AI guidelines for setup.
Was Flex Design System made with AI?
No. Every component, variable and template in Flex has been designed and built by hand in Figma since 2023. In 2026, Figma Agent (during its beta) and then Claude, through Figma MCP, were used to audit the library: finding gaps and inconsistencies, checking text contrast in Light and Dark mode, and improving descriptions and documentation, so that designers and AI agents get more context. Flex also includes guidelines that help Figma’s AI agent use it. Every change is checked by Ben before it’s published.
Is Flex Design System accessible?
Flex’s text colours meet WCAG 2.2 AA contrast (4.5:1 for body text, 3:1 for large text) in both Light and Dark mode, excluding disabled states. This was checked across every component in October 2026, in release 1.1.14. Contrast is only one part of accessibility: borders and icons (non-text contrast) haven’t been checked yet, and things like keyboard focus order and screen reader labels depend on how your team builds the design in code.
Is there a free trial?
Currently, there is no free trial, partly due to the nature of digital downloads and the significant investment of hundreds of hours in creating Flex Design System.

However, you can explore the preview to get a better idea if it is right for you, prior to making a purchase.

Additionally, great care has been taken to provide extensive documentation to help you get up to speed as quickly as possible.
Is there a student discount?
We do not currently offer any student discounts. However, depending on demand, this may change in the future. Thanks for your understanding.
How does the licence work?
Each licence is a one-off purchase for a set number of users, with access to new releases through your order’s download link. For the full terms, see the licence page.
Do I get future updates?
Yes. Your order’s download link always gives you the latest version of Flex Design System, so you can download new releases at no extra cost while Flex is on sale.

We don’t send update notifications. Check the changelog to see what’s new, then download it again from your order.
Do you offer support?
Currently we do not offer technical support. Please refer to the online documentation for more information about how to use Flex Design System.