Top 11 TypeScript Polyfill Projects

eslint-plugin-compat

7 3,038 4.3 TypeScript

Check the browser compatibility of your code

Project mention: Is there an open source tool for analyzing JS/CSS compatibility with different browsers? | /r/webdev | 2023-05-11

I've looked for this in the past. There's not much for this that is totally comprehensive. You might find success with eslint-plugin-compat which will error when using things that aren't supported in your browsers.

resize-observer

2 943 1.8 TypeScript

Polyfills the ResizeObserver API.
SurveyJS

surveyjs.io featured

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
css-anchor-positioning

1 180 7.9 TypeScript

Polyfill for CSS Anchor Positioning

Project mention: How to use CSS anchor positioning | dev.to | 2023-11-28

Even though anchor positioning has not shipped in any browser by late 2023, you can use it today with a polyfill for some quite powerful use cases. Make sure to check the limitations, which will certainly become shorter over time. There is also some hope that this API can be used natively in 2024 — at least Chrome Canary offers very good support right now behind a feature flag.

proposal-array-unique

1 132 2.6 TypeScript

ECMAScript proposal for Deduplicating method of Array
match-media

1 128 0.0 TypeScript

Universal polyfill for match media API using Expo APIs on mobile
html-rewriter

1 68 0.0 TypeScript

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

1 24 0.0 TypeScript

supercharge javascript applications
InfluxDB

www.influxdata.com featured

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
esm-polyfills

1 4 0.0 TypeScript

ESM module polyfills for nodejs
fetch-with-file-support

1 2 7.2 TypeScript

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

Project mention: Fetch() with File: Support | news.ycombinator.com | 2024-01-25

html-simple-dialogs

1 1 2.2 TypeScript

🗨️ prompt() and friends for Node.js
access-key-label-polyfill

1 1 3.2 TypeScript

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 related posts

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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
Boy, was it hard to implement proper keyboard shortcuts

1 project | dev.to | 17 Feb 2021
A note from our sponsor - InfluxDB
www.influxdata.com | 8 May 2024

Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality. 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	3,038
2	resize-observer	943
3	css-anchor-positioning	180
4	proposal-array-unique	132
5	match-media	128
6	html-rewriter	68
7	PolyFull	24
8	esm-polyfills	4
9	fetch-with-file-support	2
10	html-simple-dialogs	1
11	access-key-label-polyfill	1