InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 12 TypeScript Polyfill Projects
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
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On the other hand, direct use of the https://github.com/juggle/resize-observer library used by polyfill.io can reduce dependencies on external services to ensure stability. The library has been maintained steadily until 2022, and it has been proven to be stable by many users, so we decided to introduce it.
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popover-polyfill
Polyfills the HTML popover attribute and showPopover/hidePopover/togglePopover methods onto HTMLElement, as well as the popovertarget and popovertargetaction attributes on <button> elements.
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html-rewriter
WASM-based implementation of Cloudflare's HTML Rewriter for use in Deno, browsers, etc.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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access-key-label-polyfill
Polyfills the accessKeyLabel property to improve discoverability of native keyboard shortcuts for your website. Tiny and dependency-free.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Polyfill discussion
TypeScript Polyfill related posts
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Supporting Older Browsers using Vite
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Discussion Thread
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How to Support IE11 Users as You Move to Angular 13
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@okikio/sharedworker, SharedWorkers on all browsers
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PolyFull - enhance js functionalities
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Show HN: iPod.js – an online iPod that connects to Spotify and Apple Music
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🚀10 Trending projects on GitHub for web developers - 28th May 2021
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A note from our sponsor - InfluxDB
www.influxdata.com | 14 Jul 2025
Index
What are some of the best open-source Polyfill projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | eslint-plugin-compat | 3,129 |
| 2 | resize-observer | 985 |
| 3 | css-anchor-positioning | 397 |
| 4 | popover-polyfill | 312 |
| 5 | match-media | 139 |
| 6 | proposal-array-unique | 139 |
| 7 | html-rewriter | 97 |
| 8 | PolyFull | 24 |
| 9 | esm-polyfills | 5 |
| 10 | fetch-with-file-support | 2 |
| 11 | html-simple-dialogs | 1 |
| 12 | access-key-label-polyfill | 1 |
Sponsored
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor
Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
surveyjs.io