Quant-UX
Quant-UX: A broad open-source workspace for prototyping, testing, and product insight. Ranked #12 of 37 in UI Design Tools by our editors (8.2/10); pricing: Free plan; best for open-source prototyping and testing.
At a glance
- Editor score8.2 / 10
- PricingFree plan
- Best forOpen-source prototyping and testing
- Free planYes
- Paid fromFree
- Real-time collaborationYes
- Facts checked21 Sep 2026
Where it wins
- Unlimited prototypes and user tests on the Free plan
- Combines collaboration, testing, surveys, analytics, and heatmaps
- Supports Figma import, tokens, components, and self-hosting
Where it doesn't
- Developer handoff capabilities are not detailed
- The platform may be broader than teams needing only prototyping
- Self-hosting can add deployment and maintenance responsibility
Our verdict on Quant-UX
Quant-UX is an open-source UX design, prototyping, usability testing, and analytics tool for designers, researchers, and product teams. Its visual editor supports interactive screens, widgets, transitions, animations, logic flows, form validation, and data binding. Teams can share prototypes through links, run user tests, collect recordings and questionnaires, and review analytics such as heatmaps and task results. Web access and self-hosted deployment give teams two platform options, while the Free plan includes unlimited prototypes and unlimited user tests.
The product’s main distinction is its breadth across the design research cycle. Real-time collaboration supports shared work, while questionnaires, surveys, screen recordings, analytics, heatmaps, and task results connect prototype creation with user feedback. Design tokens, reusable components, and master screens support structured design work. Figma project import can help teams bring existing projects into Quant-UX, and integrations with Figma and REST or web services extend its workflow. Web services, data binding, and scripts also support more interactive prototypes than simple screen-to-screen demonstrations.
Quant-UX suits teams that want open-source control, self-hosting, and a single environment for prototyping and testing. It is particularly relevant when research features such as shared links, recordings, questionnaires, analytics, and heatmaps matter alongside interface design. Teams primarily seeking a dedicated developer handoff workflow should compare alternatives carefully, because those capabilities are not detailed here. Quant-UX is also a better fit for organizations prepared to manage a broad toolset than for teams looking for a narrowly focused prototyping canvas.
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Quant-UX pricing
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Quant-UX fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Real-time collaboration | Yes |
| Interactive prototyping | Yes |
| Design systems | Yes |
| Developer handoff | Not verified |
| Variables or design tokens | Yes |
| Desktop app | Not verified |
| Prototype sharing | Yes |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 1 integrations: Figma |
| Pricing | Free plan (source) |
| Website | quant-ux.com |
| Facts checked | 21 Sep 2026 |
Quant-UX integrations
Quant-UX lists 1 integrations on its own site.
- Figma
Alternatives to Quant-UX
- PenpotA broad, collaborative UI design platform with cloud and self-hosted deployment.9.4
- MockplusA broad UI design suite with cross-platform access and a low-cost annual Pro tier.9.2
- Wondershare MockittA broad UI design suite for teams working across web, desktop, and shared workspaces.9.1
See all Quant-UX alternatives →
Also Ranked In
Quant-UX is ranked in 8 of our directories; the 6 strongest besides UI Design Tools.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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