What are the best Polyfill repositories on GitHub?

The top-ranked Polyfill open source repositories include es-shims/es5-shim, symfony/polyfill, erkamyaman/capacitor-foldable, tracked and evaluated by community adoption, stars, and code commits.

How do I find trending Polyfill open source tools?

Browse this curated Polyfill directory to monitor real-time GitHub star velocity, latest code releases, and rising developer tools updated daily.

Are Polyfill GitHub repositories free and open source?

Most Polyfill projects listed here are distributed under open source licenses (such as MIT, Apache 2.0, or GPL). Always check individual project repositories for exact license terms.

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Polyfill GitHub Repositories (2026) · Open Source Tools

Discover the best Polyfill open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.

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5 matching projects · updated Nov 13, 2026 How we rank ↗

#1 TRENDING es-shims/es5-shim JavaScript 2010

ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines

◇ ecmascript ◇ es5 ◇ javascript ◇ polyfill

877 ↑ +1 today

7.1K

#2 TRENDING symfony/polyfill PHP 2015

PHP polyfills

◇ component ◇ php ◇ polyfill ◇ portability

160 ↑ +1 today

2.8K

#3 TRENDING erkamyaman/capacitor-foldable Swift NEW 2026

📱 Capacitor plugin for foldable phones: 📖 fold state, posture, hinge angle, size classes, rear display and dual screen on Android, plus a polyfill for the Device Posture and Viewport Segments web APIs.

◇ android ◇ capacitor ◇ capacitor-plugin ◇ device-posture

1 ↑ +1 today