# ts-essentials/ts-essentials

All essential TypeScript types in one place 🤙

Repository: https://github.com/ts-essentials/ts-essentials
Canonical: https://ross.abutalabs.com/products/ts-essentials
Language: TypeScript
License: MIT
License Family: permissive
Topics: typescript, types, essentials, type-level-programming, toolbox
Last push: 2026-06-03T22:03:56+00:00

## Health v2 (maintenance only)
Score: 84/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 85, release rhythm 75, longevity 100
- inputs: {"age_days": 2909, "days_push": 91, "days_rel": 91, "gap_med": 55, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4075, forks 130 (observed 2026-08-28T04:08:34.328059+00:00)

## What it is
A collection of essential TypeScript utility types for writing type-safe code, installable via npm. It provides stricter versions of built-in utility types plus helpers for JSON values, primitives, and type readability.

## Use cases
- get stricter versions of TypeScript utility types like Exclude and Extract
- type JSON values, objects, and arrays in TypeScript
- make complex TypeScript types readable in IDE hover
- add a toolbox of common TypeScript types to a project
- write more type-safe TypeScript code

## When to choose
- you use TypeScript >= 4.5 with strictNullChecks enabled and want a curated set of utility types
- you need stricter type utilities than the built-in ones
- you want a lightweight, MIT-licensed type-only dependency

## When to avoid
- your project uses TypeScript older than 4.5
- you cannot enable strictNullChecks in your tsconfig
- you need runtime utilities rather than compile-time types

## Facets
- artifact type: library
- maturity: active
- function: type-system, developer-tools
- domain: programming-languages, developer-tools, web-development
- platform: cross-platform
- tags: typescript, utility-types, type-level-programming, npm-package, nodejs

## Member repositories
- ts-essentials/ts-essentials (main) score 84

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:34.328059+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:23:28.608178+00:00, confidence not recorded.
  - readme: https://github.com/ts-essentials/ts-essentials (fetched 2026-08-28T04:08:34.328059+00:00, sha 959ccdf75f66)
  - registry_npm: https://registry.npmjs.org/ts-essentials (fetched 2026-08-29T09:15:42.409734+00:00, sha f1dc910bd61e)
- Data as of 2026-08-30T08:39:29.467469+00:00.