Knapsack vs Supernova
Knapsack
knapsack.cloud
Supernova
supernova.ioSide by side
| Figure | Knapsack | Supernova |
|---|---|---|
| Price from | — | $35/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | — | Yes |
| API | — | Yes |
| Plans published | 3 | 3 |
| Spec score · Component Libraries Software | 7.0 (#8) | 7.7 (#5) |
| Spec score · Developer Handoff Software | 7.1 (#23) | 7.8 (#17) |
| Spec score · Design System Software | 7.0 (#21) | 7.9 (#9) |
| Documentation | Its dynamic documentation connects code and design tools and automatically updates when changes are made. | Its documentation editor supports real-time collaboration, page history, and publishing. |
| Integrations | The integrations page lists Figma, GitHub, Adobe XD, Abstract, Percy, React, Airtable, Framer, Lucidchart, Vimeo, Whimsical, and YouTube among its integrations and embeds. | Listed integrations include Figma, Storybook, Tokens Studio, GitHub, Azure, Bitbucket, GitLab, and VS Code. |
| Support | Knapsack offers implementation resources and access to design system practitioners, with standard or premium SLA support depending on plan. | All plans include in-product support chat, while Enterprise adds priority support and onboarding. |
Plans
In their own words
Supernova
Supernova brings design system information, code data, documentation, and AI context together as a shared source for teams and agents. It tracks component health, manages design tokens, and supports multiple brands in one workspace. Its documentation editor supports real-time collaboration, page history, and publishing. Through MCP, it provides filtered design system context to AI tools including Cursor, Copilot, and Claude Code.
Code automation can export tokens and open a pull request when design system changes are made. Listed integrations include Figma, Storybook, Tokens Studio, GitHub, Azure, Bitbucket, GitLab, and VS Code; pre-built integrations are included in the Free plan. The Free plan supports up to five seats and limits documentation pages, connected data sources, page history, and analytics periods. Pro costs $35 a month per editor seat. Supernova Portal is available on the web, and its desktop app is currently available only for Mac.