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koenbok/framer

★ 5,879JavaScriptAudience · designerComplexity · 2/5Setup · easy

TLDR

Framer Library is a JavaScript framework for building interactive, animation-rich prototypes of apps and interfaces, designers use it to create realistic spring-based motion and 3D effects that static mockups cannot show.

Mindmap

mindmap
  root((framer library))
    What it does
      Interactive prototypes
      Animation framework
      Design file import
    Tech stack
      JavaScript
    Features
      Spring animations
      3D effects
      Design file import
      Mac desktop app
    Compatible tools
      Sketch
      Photoshop
      Figma
    Use cases
      App prototypes
      Animated demos
      Designer handoffs
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Things people build with this

USE CASE 1

Build an interactive prototype of a mobile app with spring-based animations to demo screen transitions realistically.

USE CASE 2

Import layers from Sketch, Figma, or Photoshop and add JavaScript-driven interactions to make a clickable prototype.

USE CASE 3

Create 3D flip or parallax animation effects for a product demo that would be impossible to convey in a static PDF.

Tech stack

JavaScript

Getting it running

Difficulty · easy Time to first run · 30min

In plain English

Framer Library is an open source JavaScript framework for building high-fidelity interactive prototypes. The focus is on animations and transitions, particularly the kind that feel physically realistic, such as spring-based motion or 3D effects. Designers and developers use it to create interactive previews of apps and interfaces that go beyond what static mockups can show. The library can be used in two ways. The first is through a Mac desktop application called Framer, which combines a visual editor with the ability to write code, letting users switch between dragging things around and customizing behavior with JavaScript. The second is through a companion tool called Framer Generator, which imports layers from design tools like Sketch, Photoshop, and Figma so existing designs can become the starting point for an interactive prototype. Setting up the library without the Mac app is straightforward: download the package, open the included HTML file in a browser, and edit the JavaScript file to add animations and interactions. The README includes a comparison table showing which features are available with each approach. The README also notes that a newer version built for React was in progress at the time this text was written, though that work appears to have continued separately. The original library remains available and open source. A community of designers had gathered around it, and the project links to example galleries and beginner guides on the Framer website.

Copy-paste prompts

Prompt 1
Using Framer Library, write JavaScript that creates a card element with a spring animation that bounces when clicked, scaling from 1.0 to 1.2 and back.
Prompt 2
How do I import a Sketch file into Framer and add a tap interaction that slides in a second panel from the right with an easing curve?
Prompt 3
Write a Framer prototype that links two screens together, tapping a button on screen 1 animates to screen 2 using a horizontal slide transition.
Prompt 4
Show me how to create a 3D rotation effect on a Framer layer using the rotationX property with a custom animation curve.
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