A JavaScript function that modifies component behavior without changing the component itself, enabling custom interactions and logic. Overrides let you add functionality like form validation, state management, or API calls while keeping components reusable. This separation of concerns keeps your component library clean while allowing page-specific customizations.

User-written JavaScript, CSS, or HTML that extends functionality beyond built-in features. Custom code enables advanced interactions, integrations, and unique behaviors tailored to specific requirements. In Framer, add custom code through code components, overrides, or the custom code section in site settings.

Motion.dev, previously called Framer Motion, is a high-performance animation library for React and JavaScript. The old name still appears in tutorials and search results, but current documentation and packages use Motion.dev.

If you are building a website in Framer, you do not need to install Motion or write Framer Motion code. Framer has Motion-powered animation tools built into the canvas, so you can create polished animations visually: appear effects, scroll animations, hover and tap states, transitions, and component variants. That gives you Framer Motion-style results without setting up npm, importing an animation library, or maintaining custom React animation code.

Bringing websites to life with animation in Framer

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If your goal is to build a website, start with Framer instead of reaching for animation code first. You can design the page, add motion, and publish from one visual workflow — then use custom code only when a project truly needs it.

Use Motion directly when you are building a custom React or JavaScript app and need code-level animation control. Use Framer when you want to design, animate, and publish a site visually.

To learn the no-code path, explore Framer’s Academy.

A JSON-based animation format that renders Adobe After Effects animations on the web with small file sizes and infinite scalability. Lottie animations are lightweight, vector-based, and highly customizable through JavaScript. Import Lottie files into Framer for sophisticated animations without performance penalties.

A JavaScript library for building user interfaces through composable components and declarative rendering. React's component model powers many modern web applications and design tools. Framer is built on React, enabling code components and advanced customizations.

Document Object Model — the programming interface representing HTML documents as a tree structure that JavaScript can manipulate. Understanding the DOM helps debug layout issues and write effective custom code.