TypeScript Polyfill

Open-source TypeScript projects categorized as Polyfill

Top 12 TypeScript Polyfill Projects

  1. eslint-plugin-compat

    Check the browser compatibility of your code

  2. 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.

    SurveyJS logo
  3. resize-observer

    Polyfills the ResizeObserver API.

    Project mention: Supporting Older Browsers using Vite | dev.to | 2024-07-23

    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.

  4. css-anchor-positioning

    Polyfill for CSS Anchor Positioning

  5. 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.

  6. match-media

    Universal polyfill for match media API using Expo APIs on mobile

  7. proposal-array-unique

    ECMAScript proposal for Deduplicating method of Array

  8. html-rewriter

    WASM-based implementation of Cloudflare's HTML Rewriter for use in Deno, browsers, etc.

  9. 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.

    InfluxDB logo
  10. PolyFull

    supercharge javascript applications

  11. esm-polyfills

    ESM module polyfills for nodejs

  12. fetch-with-file-support

    📂 fetch() but with support for file:///my/file.txt URLs

  13. html-simple-dialogs

    🗨️ prompt() and friends for Node.js

  14. 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).

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TypeScript Polyfill related posts

  • Supporting Older Browsers using Vite

    1 project | dev.to | 23 Jul 2024
  • Discussion Thread

    4 projects | /r/neoliberal | 21 Apr 2022
  • How to Support IE11 Users as You Move to Angular 13

    2 projects | dev.to | 11 Nov 2021
  • @okikio/sharedworker, SharedWorkers on all browsers

    6 projects | dev.to | 15 Oct 2021
  • PolyFull - enhance js functionalities

    1 project | dev.to | 11 Sep 2021
  • Show HN: iPod.js – an online iPod that connects to Spotify and Apple Music

    4 projects | news.ycombinator.com | 23 Jun 2021
  • 🚀10 Trending projects on GitHub for web developers - 28th May 2021

    2 projects | dev.to | 28 May 2021
  • A note from our sponsor - InfluxDB
    www.influxdata.com | 14 Jul 2025
    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 →

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

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