Repo brief: greensock/GSAP

Generated by RepoPilot · document generated 2026-09-16 · concise human review Evidence snapshot · analyzed 2026-09-16T22:03:42.951Z · commit 13e2b7905464

Verdict

Mixed — Slowing — last commit 5mo ago

• Last commit 5mo ago
• 3 active contributors

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against OpenSSF Scorecard

What it is

GSAP (GreenSock Animation Platform) is a high-performance JavaScript animation library that updates object properties over time with extreme accuracy. It animates CSS, SVG, canvas, DOM elements, and arbitrary JavaScript objects across all major browsers without dependencies. Key capabilities include advanced sequencing, scroll-triggered animations via ScrollTrigger, morphing, motion paths, text effects, and physics-based animations—all ~20x faster than jQuery. Monolithic source structure: core animation engine in src/gsap-core.js with modular plugins (src/ScrollTrigger.js, src/Draggable.js, src/MotionPathPlugin.js, etc.). Distributed as both CommonJS (dist/) and ES modules (esm/), with…

Start here

Open these first:

• src/gsap-core.js — Core engine implementing the animation timeline, tween sequencing, and property interpolation logic that all plugins depend…
• src/CSSPlugin.js — Primary plugin for CSS property animation, handling browser compatibility and style-application across the animation…
• src/ScrollTrigger.js — Scroll-based animation engine enabling scroll-linked animations and viewport-triggered sequences, used on millions of sites.
• src/index.js — Main entry point and public API surface, exports core GSAP functions and plugin registration mechanism.
• src/all.js — Aggregates all plugins and the core library into a single distribution bundle, defines the complete feature surface.

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

Clone the repository: git clone https://github.com/greensock/GSAP.git. Install dependencies (if any; package.json shows zero listed dependencies): npm install (verify against package.json in full repo). No build ste…

Daily commands:

No dev server evident from provided data. GSAP is a library, not an application. Typical usage: import via NPM (npm install gsap) or CDN (`<script src="https://cdn.jsdelivr.net/npm/gsap@3.15/dist/gsap.min.js"></script…

…shortened for this brief.

Key cautions & unknowns

• Slowing — last commit 5mo ago
• Small team — 3 contributors active in recent commits
• Concentrated ownership — top contributor handles 59% of recent commits
• No build configuration (webpack, Rollup, etc.) visible in provided data—verify if dist/ is committed pre-built or generated by a build step not shown. No .env file or environment variables mentioned, but CDN usage…
• License evidence is incomplete or ambiguous.
• Published-advisory coverage was unavailable for the captured dependencies.
• Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

• Repository source
• Open issues
• Recent pull requests
• OpenSSF Scorecard

Evidence note

Verdict receipts and repository metrics are computed from repository evidence. Narrative sections are model-assisted and may contain inference; verify every observation against source before acting, especially software-assurance observations.

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