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About

Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins. Jump right into building with Bootstrap, use the CDN, install it via the package manager, or download the source code. Bootstrap utilizes Sass for modular and customizable architecture. Import only the components you need, enable global options like gradients and shadows and write your own CSS with our variables, maps, functions, and mixins. Import one stylesheet and you're off to the races with every feature of our CSS. The easiest way to customize Bootstrap, include only the CSS you need. Bootstrap 5 is evolving with each release to better utilize CSS variables for global theme styles, individual components, and even utilities. We provide dozens of variables for colors, font styles, and more for use anywhere.

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.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and anyone searching for a solution designed to help them build fast, responsive sites

Audience

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

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$128 per year
Free Version
Free Trial

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

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

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Bootstrap
United States
getbootstrap.com

Company Information

Once UI
United States
once-ui.com

Alternatives

Alternatives

Categories

Categories

Integrations

Article Editor
Bullet Train
Dash
Health Studio
Kanakku
Kitto
LuGo-Test
Muscula
NG-Bootstrap
NGX-Bootstrap
Next.js
Oorian
PDFMonkey
PDFmyURL
PHPixie
SaaS Pegasus
ThemeSelection
Turbojet
Yii

Integrations

Article Editor
Bullet Train
Dash
Health Studio
Kanakku
Kitto
LuGo-Test
Muscula
NG-Bootstrap
NGX-Bootstrap
Next.js
Oorian
PDFMonkey
PDFmyURL
PHPixie
SaaS Pegasus
ThemeSelection
Turbojet
Yii
Claim Bootstrap and update features and information
Claim Bootstrap and update features and information
Claim Once UI and update features and information
Claim Once UI and update features and information