One design system. Every platform.
Mass is a hosted component library and tokens engine for product teams. Ship consistent UI to web, iOS, Android, and Flutter from a single source of truth.
Trusted by innovative companies worldwide
Platform capabilities
Everything in one system
Tokens, components, and audits — across every platform you ship to. One source of truth. Zero drift.
Token Studio
Define color, type, motion, and elevation tokens in one place. Sync to Figma, Tailwind, iOS, Android, Flutter, and Web Components — automatically.
300 Components
Buttons, sheets, dialogs, navigation, data tables, and pickers — built on Material 3 specs, fully accessible, themeable to your brand in twenty minutes.
Platform Parity
Every component ships for React, Vue, SwiftUI, Jetpack Compose, and Flutter. Same props, same behavior, audited side-by-side on every release.
Theme Builder
Upload a brand color and Mass generates a complete tonal palette, type ramp, and elevation system. Preview across light, dark, and dynamic color in one click.
Figma Sync
A bi-directional bridge between code and Figma. Designers edit tokens in Figma, engineers ship them — or vice versa. Drift is impossible by design.
Audit Reports
WCAG AA scoring, contrast checks, touch-target validation, and platform-spec adherence across every component in every theme. Exported as PDF or signed CI artifacts.
Unified dashboard for everything you ship
Get a complete view of your business with real-time reporting, automated reconciliation, and actionable insights — all in one place.
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Built for developers, loved by teams
Our APIs are designed for simplicity. Start integrating with just a few lines of code and scale to millions of users.
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300+
M3 components
6
Target platforms
WCAG AA
Accessibility standard
< 20 min
Time to first theme
Teams that ship faster, choose us
“The API documentation is the best I've ever worked with. We integrated in under a day and haven't looked back since.”
Sarah Chen
CTO, TechFlow
“Moving to this platform reduced our failures by 40% and saved our team hundreds of hours in reconciliation work.”
Marcus Rivera
Head of Engineering, Bloom
“What impressed me most was the global coverage. We expanded to 30 new markets in a single quarter — something that would have taken us years otherwise.”
Aisha Patel
Founder, NexaPay
Start free. Pay as you grow.
No hidden fees. No contracts. Switch plans anytime.
Free
Individual designers and side projects exploring the Material 3 system.
Team
Product teams building cohesive multi-platform experiences.
Enterprise
Organizations governing many brands, products, and accessibility standards.
Questions, answered
Mass implements the full Material 3 specification as a baseline, but you can theme every token, replace any component, and add your own. Use Material 3 verbatim or treat it as the floor — your choice.
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