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New TypeScript Utilities 2026

GitHub Libraries TypeScript Utilities

toss/es-toolkit 11K

added 2 weeks ago

A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.

abbr/deasync 1K

added 2 months ago

Turns async function into sync via JavaScript wrapper of Node event loop

alexreardon/tiny-invariant 1K

added 3 months ago

A tiny invariant function

radashi-org/radashi 910

added 3 months ago

The modern, community-first TypeScript toolkit with all of the fast, readable, and minimal utility functions you need.

jashkenas/underscore 27K +17

added 11 months ago

Underscore.js is a utility-belt library for JavaScript

airbnb/ts-migrate 5K +5

added 1 year ago

A tool for helping migrate code to TypeScript. It takes a JavaScript, or a partial TypeScript, project in and gives a compiling TypeScript project out.

gka/chroma.js 10K +1

added 1 year ago

JavaScript library for all kinds of color manipulations.

pmndrs/valtio 10K +9

added 1 year ago

Valtio turns the object you pass it into a self-aware proxy.

vercel/ms 5K +5

added 1 year ago

Tiny millisecond conversion utility

ai/size-limit 6K -2

added 1 year ago

Size Limit is a performance budget tool for JavaScript. It checks every commit on CI, calculates the real cost of your JS for end-users and throws an error if the cost exceeds the limit.

sindresorhus/dot-prop 866

added 1 year ago

Get, set, or delete a property from a nested object using a dot path

piotrwitek/utility-types 5K

added 1 year ago

Collection of utility types, complementing TypeScript built-in mapped types and aliases (think "lodash" for static types).

sindresorhus/type-fest 17K +18

added 1 year ago

A collection of essential TypeScript types

lodash/lodash 61K -4

added 1 year ago

A modern JavaScript utility library delivering modularity, performance, & extras.

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