Bootstrap
The world's most popular HTML, CSS and JS library
What founders should know about Bootstrap
Bootstrap is an open-source frontend toolkit for building responsive, mobile-first websites with a prebuilt grid system, UI components, and JavaScript plugins. It is customizable via Sass and CSS variables.
Best for
The world's most popular HTML, CSS and JS library
Probably not for
Teams that need requirements this record cannot verify yet.
About Bootstrap
Bootstrap is an open-source frontend toolkit for building responsive, mobile-first websites with a prebuilt grid system, UI components, and JavaScript plugins. It is customizable via Sass and CSS variables.
Common use cases
- responsive grid layouts
- prebuilt UI components
- rapid prototyping
- website development
- interactive components without jQuery
Integrations
npm, RubyGems, Composer, Meteor, Webpack, Parcel, Vite, jsDelivr, Popper.
Decision criteria
- Team fit and workflow maturity
- Pricing model and free-tier constraints
- Deployment, API, and integration requirements
Verified facts and evidence
| Claim | Value | Source | Confidence |
|---|---|---|---|
| Verification date | 2026-06-30 | StartupToolbox | high |
| Pricing model | open_source | StartupToolbox | medium |
| Starting price | USD 0 | StartupToolbox | medium |
Methodology and freshness
A founder should be able to bookmark this page, compare the record with related options, and act without reopening scattered source tabs.
Use this record to narrow fit, pricing, and integration risk before starting trials.
Last reviewed: Jun 30, 2026
Who should consider Bootstrap?
The world's most popular HTML, CSS and JS library
How current is this tool record?
Startup Atlas last checked this record on 2026-06-30.