Devault Once UI

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Devault:

About

Devault is a browser-based design reference library for designers, product teams, and developers. It brings real-world interface captures, end-to-end user flows, product evolution timelines, marketing emails, gradients, and hero imagery into a searchable workspace. The library includes more than 390,000 design assets, including over 357,000 captures from shipped products and 1,860 marketing emails. Users can browse in the browser, use the Figma plugin, or connect AI editors such as Claude Code and Cursor through Devault's MCP server on paid plans. Devault also provides 2,383 free DESIGN.md design systems that can be exported to formats including Tailwind v4, CSS variables, Figma variables, and SwiftUI. The free plan includes about 1,050 curated designs and access to the Figma plugin for that collection; Pro provides access to the full library.
Once UI:

About

Once UI is an open source design system and component library built for Next.js (and paired with a matching design system in Figma), offering a flexible style system, 100+ ready-to-use UI components, and more than 75 copy-paste blocks to rapidly assemble web apps. It supports both simple static sites and more complex applications, thanks to pre-built, deployment-ready templates for portfolios, documentation sites, blogs, ecommerce stores, and dashboards (free and Pro versions). Once UI emphasizes “component-first” development, meaning developers don’t need to manually write utility-class-heavy styling (like with some CSS frameworks); instead, they use semantic variables and components that integrate design tokens for visual consistency. For creators used to tools like utility-class frameworks or component libraries, but who want faster development with fewer dependencies, Once UI simplifies building UIs without sacrificing design quality or accessibility.
Devault:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Once UI:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Devault:

Audience

Designers, product teams and developers building with AI
Once UI:

Audience

Independent developers, freelancers, startups and small teams searching for a tool to build polished web applications or websites quickly and consistently
Devault:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Once UI:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Devault:

API

Offers API Supported
Once UI:

API

Offers API Not Supported
Devault:

Screenshots and Videos

No images available
Once UI:

Screenshots and Videos

Devault:

Pricing

$9/month (billed yearly)
Pro is listed at $9 per month when billed yearly. The Free plan includes about 1,050 curated designs and the Figma plugin for that collection; Pro unlocks the full library.
Free Version Supported
Free Trial Supported
Once UI:

Pricing

$128 per year
Free Version Supported
Free Trial Not Supported
Devault:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Once UI:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Devault:

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Once UI:

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported
Devault:

Company Information

Devault
Founded: 2026
United Kingdom
devault.design
Once UI:

Company Information

Once UI
United States
once-ui.com
Devault:

Alternatives

Once UI:

Alternatives

Devault:
Once UI:
Devault:
Once UI:
Devault:
Unite UX

Unite UX

Progress Telerik
Once UI:
Devault:
Once UI:
Devault:

Categories

UI Design Supported
Once UI:

Categories

SaaS Boilerplates Supported
Web Design Supported
Devault:

Integrations

Figma Supported
CSS Not Supported
Claude Code Supported
Cursor Supported
Model Context Protocol (MCP) Supported
Next.js Not Supported
Once UI:

Integrations

Figma Supported
CSS Supported
Claude Code Not Supported
Cursor Not Supported
Model Context Protocol (MCP) Not Supported
Next.js Supported
Devault:
Claim Devault and update features and information
Claim Devault and update features and information
Once UI:
Claim Once UI and update features and information
Claim Once UI and update features and information