# Bootstrap vs React

**Leader by Vioscale score:** React

| Attribute | Bootstrap | React |
|---|---|---|
| **Vioscale score** | 70.5 (73% (medium)) | 79.5 (73% (medium)) |
| activity.commits_last_30d | 14 | 53 |
| adoption.dependent_repos | 874,564 | 324,856 |
| adoption.github_stars | 174,650 | 247,901 |
| adoption.package_downloads_weekly | 6,450,171 | 173,063,703 |
| adoption.stackoverflow_questions | - | 470,000 |
| content.faq | `[{"answer":"Bootstrap is an open-source HTML, CSS, and JavaScript framework for building responsive web applications with a mobile-first approach. It provides pre-built components, utilities, and a grid system that help developers create websites and web applications more efficiently without building from scratch.","source":"https://getbootstrap.com","question":"What is Bootstrap and who should use it?","confidence":0.95},{"answer":"Bootstrap is open-source and free to use. There are no licensing fees, subscription costs, or paid tiers required—anyone can download and use it in any project.","source":"https://getbootstrap.com","question":"How much does Bootstrap cost?","confidence":0.95},{"answer":"Bootstrap is a web-based framework designed for building responsive web projects. It runs in any modern web browser and can be deployed across different hosting and infrastructure models.","source":"https://getbootstrap.com","question":"What platforms does Bootstrap support?","confidence":0.9},{"answer":"Bootstrap supports both cloud deployment and self-hosted options, giving teams flexibility to choose the infrastructure model that fits their needs. Developers can deploy Bootstrap-based projects to the hosting platform of their choice.","source":"https://getbootstrap.com","question":"What deployment options are available with Bootstrap?","confidence":0.85},{"answer":"Yes, Bootstrap provides a library of pre-built HTML, CSS, and JavaScript components along with a responsive grid system. Developers can use and customize these components as building blocks for their interfaces.","source":"https://getbootstrap.com","question":"Does Bootstrap include ready-to-use components?","confidence":0.9},{"answer":"Bootstrap is built with Sass and supports customization through Sass variables and functions. This allows developers to adjust colors, spacing, and other design properties to match their brand requirements while keeping the component structure intact.","source":"https://getbootstrap.com","question":"Can I customize Bootstrap's default styling?","confidence":0.9},{"answer":"Yes, Bootstrap is designed with a mobile-first philosophy, prioritizing mobile user experiences and progressively enhancing the interface for larger screens. This approach ensures projects work reliably across different device sizes and screen resolutions.","source":"https://getbootstrap.com","question":"Is Bootstrap built for mobile-first development?","confidence":0.95},{"answer":"Bootstrap includes pre-built JavaScript plugins that add interactivity to components, such as navigation dropdowns, modals, carousels, and tooltips. These plugins extend the basic HTML and CSS components with common interactive behaviors developers can use out of the box.","source":"https://getbootstrap.com","question":"What interactive functionality does Bootstrap provide?","confidence":0.85}]` | `[{"answer":"React is a JavaScript library for building user interfaces using a component-based architecture. It uses a declarative programming model, allowing developers to describe what the UI should look like for any given application state. React employs a virtual DOM abstraction to efficiently update only the parts of the interface that have changed.","source":"https://github.com/facebook/react","question":"What is React?","confidence":0.95},{"answer":"Yes, React is open source software released under the MIT license, permitting free use, modification, and distribution in both commercial and personal projects. There are no licensing fees or cost barriers to using React.","source":"https://github.com/facebook/react","question":"Is React open source and free to use?","confidence":0.95},{"answer":"React is maintained by Meta (formerly Facebook) along with contributions from the open-source community. Meta created React to solve its own internal UI challenges and later open-sourced it to enable broader adoption and community feedback.","source":"https://github.com/facebook/react","question":"Who maintains React?","confidence":0.94},{"answer":"React is built on JavaScript and TypeScript, running natively in web browsers. Meta also maintains React Native, a separate framework that allows developers to apply React principles to build native iOS and Android mobile applications using JavaScript.","source":"https://github.com/facebook/react","question":"What programming languages and platforms does React support?","confidence":0.95},{"answer":"Popular alternatives include Vue.js (a progressive JavaScript framework), Angular (a comprehensive full-featured framework), Svelte (a compiler-based framework), and Preact (a lightweight React-compatible library). Each offers different trade-offs in learning curve, ecosystem size, and performance characteristics.","source":"https://github.com/facebook/react","question":"What are the main alternatives to React?","confidence":0.93},{"answer":"React applications can use multiple rendering strategies: client-side rendering (browser handles all rendering), server-side rendering (server generates initial HTML via Node.js), or static site generation (pre-built HTML files). Deployments typically run on web servers, content delivery networks, or serverless computing platforms.","source":"https://github.com/facebook/react","question":"How are React applications typically deployed?","confidence":0.94},{"answer":"React projects typically use build tools such as Webpack, Vite, or Parcel for bundling and development. Common complementary libraries include React Router for navigation, Redux or Context API for state management, and Jest or React Testing Library for testing.","source":"https://github.com/facebook/react","question":"What build tools and libraries are commonly paired with React?","confidence":0.93}]` |
| deployment.options | `{"cloud":true}` | - |
| description.long | Bootstrap is a front-end framework and library that provides pre-built HTML components, CSS styling utilities, and JavaScript plugins for constructing modern web applications. It simplifies responsive design with a grid system and standardized UI components. | A library that enables developers to construct user interfaces using individual components as building blocks. React components are JavaScript functions that receive data and render the appropriate output, supporting both web applications and native mobile development through frameworks. |
| features.capabilities | `{"paradigm":"CSS and JavaScript component library","bundle_size":"small","component_model":true}` | `{"paradigm":"Component-based library","ssr_support":true,"component_model":true}` |
| language.primary | MDX | JavaScript |
| license.spdx | MIT | MIT |
| market.availability | - | `{"source":"https://react.dev","hqCountry":"US","confidence":0.95,"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"free","summary":"Free and open source","freeTier":true,"sourceUrl":"https://getbootstrap.com","retrievedAt":"2026-08-14T13:45:59.269Z"}` | `{"type":"open_source","sourceUrl":"https://react.dev","retrievedAt":"2026-08-01T15:00:26.727Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | commercial | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 49 | 60 |
| release.history | `[{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.8","date":"2025-08-26T02:04:48Z","type":"stable","version":"v5.3.8"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.7","date":"2025-06-17T16:16:45Z","type":"stable","version":"v5.3.7"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.6","date":"2025-05-05T19:26:30Z","type":"stable","version":"v5.3.6"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.5","date":"2025-04-04T18:23:13Z","type":"stable","version":"v5.3.5"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.4","date":"2025-04-03T16:10:57Z","type":"stable","version":"v5.3.4"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.3","date":"2024-02-20T15:19:46Z","type":"stable","version":"v5.3.3"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.2","date":"2023-09-14T14:26:29Z","type":"stable","version":"v5.3.2"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.1","date":"2023-07-26T08:01:13Z","type":"stable","version":"v5.3.1"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.0","date":"2023-05-30T15:23:41Z","type":"stable","version":"v5.3.0"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.0-alpha3","date":"2023-04-03T07:31:30Z","type":"prerelease","version":"v5.3.0-alpha3"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.0-alpha2","date":"2023-03-24T14:35:39Z","type":"prerelease","version":"v5.3.0-alpha2"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.3.0-alpha1","date":"2022-12-24T16:39:27Z","type":"prerelease","version":"v5.3.0-alpha1"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.2.3","date":"2022-11-22T07:47:20Z","type":"stable","version":"v5.2.3"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.2.2","date":"2022-10-03T07:50:53Z","type":"stable","version":"v5.2.2"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.2.1","date":"2022-09-07T15:35:27Z","type":"stable","version":"v5.2.1"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.2.0","date":"2022-07-19T15:47:21Z","type":"stable","version":"v5.2.0"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v4.6.2","date":"2022-07-19T15:58:28Z","type":"stable","version":"v4.6.2"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.2.0-beta1","date":"2022-05-13T16:44:56Z","type":"prerelease","version":"v5.2.0-beta1"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v4.6.1","date":"2021-10-28T15:31:01Z","type":"stable","version":"v4.6.1"},{"url":"https://github.com/twbs/bootstrap/releases/tag/v5.1.3","date":"2021-10-09T15:26:57Z","type":"stable","version":"v5.1.3"}]` | `[{"url":"https://github.com/react/react/releases/tag/v19.2.8","date":"2026-07-21T15:49:09Z","type":"stable","version":"v19.2.8"},{"url":"https://github.com/react/react/releases/tag/v19.1.9","date":"2026-07-21T15:48:51Z","type":"stable","version":"v19.1.9"},{"url":"https://github.com/react/react/releases/tag/v19.0.8","date":"2026-07-21T15:48:28Z","type":"stable","version":"v19.0.8"},{"url":"https://github.com/react/react/releases/tag/v19.2.7","date":"2026-06-01T18:04:24Z","type":"stable","version":"v19.2.7"},{"url":"https://github.com/react/react/releases/tag/v19.1.8","date":"2026-06-01T18:04:14Z","type":"stable","version":"v19.1.8"},{"url":"https://github.com/react/react/releases/tag/v19.0.7","date":"2026-06-01T18:04:09Z","type":"stable","version":"v19.0.7"},{"url":"https://github.com/react/react/releases/tag/v19.2.6","date":"2026-05-06T16:27:45Z","type":"stable","version":"v19.2.6"},{"url":"https://github.com/react/react/releases/tag/v19.1.7","date":"2026-05-06T16:27:39Z","type":"stable","version":"v19.1.7"},{"url":"https://github.com/react/react/releases/tag/v19.0.6","date":"2026-05-06T16:27:36Z","type":"stable","version":"v19.0.6"},{"url":"https://github.com/react/react/releases/tag/eslint-plugin-react-hooks%407.1.1","date":"2026-04-17T20:51:48Z","type":"stable","version":"eslint-plugin-react-hooks@7.1.1"},{"url":"https://github.com/react/react/releases/tag/eslint-plugin-react-hooks%407.1.0","date":"2026-04-17T19:41:40Z","type":"stable","version":"eslint-plugin-react-hooks@7.1.0"},{"url":"https://github.com/react/react/releases/tag/v19.2.5","date":"2026-04-08T18:49:20Z","type":"stable","version":"v19.2.5"},{"url":"https://github.com/react/react/releases/tag/v19.1.6","date":"2026-04-08T18:49:16Z","type":"stable","version":"v19.1.6"},{"url":"https://github.com/react/react/releases/tag/v19.0.5","date":"2026-04-08T18:49:11Z","type":"stable","version":"v19.0.5"},{"url":"https://github.com/react/react/releases/tag/v19.2.4","date":"2026-01-26T18:29:43Z","type":"stable","version":"v19.2.4"},{"url":"https://github.com/react/react/releases/tag/v19.1.5","date":"2026-01-26T18:29:34Z","type":"stable","version":"v19.1.5"},{"url":"https://github.com/react/react/releases/tag/v19.0.4","date":"2026-01-26T18:29:19Z","type":"stable","version":"v19.0.4"},{"url":"https://github.com/react/react/releases/tag/v19.1.4","date":"2025-12-12T00:11:45Z","type":"stable","version":"v19.1.4"},{"url":"https://github.com/react/react/releases/tag/v19.0.3","date":"2025-12-12T00:12:32Z","type":"stable","version":"v19.0.3"},{"url":"https://github.com/react/react/releases/tag/v19.2.3","date":"2025-12-11T23:57:59Z","type":"stable","version":"v19.2.3"}]` |
| security.scorecard | 7 | 7 |
| security.vulnerabilities | `{"count":12,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bootstrap&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=react-devtools-core&per_page=100","last_12m":0,"max_severity":"MODERATE"}` |

## Capabilities (Frontend UI Frameworks)

| Capability | Bootstrap | React |
|---|:--:|:--:|
| **Core** |  |  |
| Paradigm | CSS and JavaScript component library | Component-based library |
| Reusable component model | ✓ | ✓ |
| **Rendering** |  |  |
| Virtual DOM | - | - |
| Signals / fine-grained reactivity | - | - |
| SSR support | - | ✓ |
| **DX** |  |  |
| First-class TypeScript | - | - |
| **State** |  |  |
| Built-in state management | - | - |
| **Ecosystem** |  |  |
| Official router | - | - |
| **Performance** |  |  |
| Runtime size | Small (10–40kb) | - |

*Source: Vioscale. Generated 2026-09-01T16:37:25.942Z. "-" = undocumented, not absent.*