npmjs.org "type-checking" keyword
View the packages on the npmjs.org package registry that are tagged with the "type-checking" keyword.
typescript-lite 1.0.0
轻量级TypeScript类型检查工具，保留TypeScript核心功能，提供更轻量的使用体验1 version - Latest release: 9 days ago - 1 maintainer
tsl-vite-plugin 1.0.0
TypeScript Lite Vite集成插件1 version - Latest release: 9 days ago - 1 maintainer
tssure 0.0.1-prealpha.1
Automated contract verification for TypeScript1 version - Latest release: 4 days ago - 1 maintainer
tsl-webpack-plugin 1.0.0
TypeScript Lite Webpack集成插件1 version - Latest release: 9 days ago - 1 maintainer
eslint-plugin-typed-jsdoc 0.1.0
ESLint plugin for JSDoc type accuracy - compares JSDoc to TypeScript inference1 version - Latest release: 4 days ago - 1 maintainer
dhi-validator 0.5.0
Ultra-fast validation library - 2.47B ops/sec with SIMD i32! Drop-in Zod replacement. Works with ...1 version - Latest release: 16 days ago - 1 maintainer
@side-quest/tsc-runner 1.0.2
TypeScript type checker MCP server — structured diagnostics for Claude Code3 versions - Latest release: 8 days ago - 1 maintainer
@lxgicstudios/api-contract 1.0.0
Validate live API responses against a contract schema. Auto-generate contracts from endpoints, th...1 version - Latest release: 3 days ago - 1 maintainer
@david0dev/nxt-lang 3.0.2
NXT Programming Language - Modern, safe, and powerful. Compiles to JavaScript with type checking,...10 versions - Latest release: 6 days ago - 876 downloads last month - 1 maintainer
Top 0.7% on npmjs.org
916 versions - Latest release: almost 5 years ago - 1,076 dependent packages - 19,205 dependent repositories - 24.7 million downloads last month - 6,622 stars on GitHub - 1 maintainer
ts-toolbelt 9.6.0 💰
TypeScript's largest utility library916 versions - Latest release: almost 5 years ago - 1,076 dependent packages - 19,205 dependent repositories - 24.7 million downloads last month - 6,622 stars on GitHub - 1 maintainer
Top 4.4% on npmjs.org
18 versions - Latest release: almost 5 years ago - 8 dependent packages - 19 dependent repositories - 5.64 thousand downloads last month - 31 stars on GitHub - 1 maintainer
bycontract 2.0.11
argument validation library based on JSDOC syntax18 versions - Latest release: almost 5 years ago - 8 dependent packages - 19 dependent repositories - 5.64 thousand downloads last month - 31 stars on GitHub - 1 maintainer
@writetome51/is-string-not-string 2.0.0
2 functions that check if argument is or is not string2 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
guard-env 0.0.2
Guard-env is a Node.js module for type-checking and guarding environment variables based on speci...2 versions - Latest release: almost 2 years ago - 12 downloads last month - 0 stars on GitHub - 1 maintainer
Top 9.0% on npmjs.org
24 versions - Latest release: over 1 year ago - 15 dependent packages - 16 dependent repositories - 3.04 thousand downloads last month - 1 stars on GitHub - 1 maintainer
javascript-interface-library 1.0.8 💰
various classification, validation and utility functions24 versions - Latest release: over 1 year ago - 15 dependent packages - 16 dependent repositories - 3.04 thousand downloads last month - 1 stars on GitHub - 1 maintainer
check-data-type 1.0.0
A module to validate the data type in javascript.1 version - Latest release: over 8 years ago - 1 dependent package - 1 dependent repositories - 14 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.1% on npmjs.org
81 versions - Latest release: almost 9 years ago - 240 dependent packages - 100,351 dependent repositories - 27.5 million downloads last month - 65 stars on GitHub - 3 maintainers
check-more-types 2.24.0
Large collection of predicates.81 versions - Latest release: almost 9 years ago - 240 dependent packages - 100,351 dependent repositories - 27.5 million downloads last month - 65 stars on GitHub - 3 maintainers
pug-ts-check 0.2.1
Static TypeScript checker for Pug templates11 versions - Latest release: 13 days ago - 22 downloads last month - 0 stars on GitHub - 1 maintainer
Top 4.9% on npmjs.org
1 version - Latest release: over 7 years ago - 5 dependent packages - 640 dependent repositories - 76.7 thousand downloads last month - 3 stars on GitHub - 1 maintainer
ow-lite 0.0.2 💰
Lightweight replacement for the ow validation library meant for browser usage.1 version - Latest release: over 7 years ago - 5 dependent packages - 640 dependent repositories - 76.7 thousand downloads last month - 3 stars on GitHub - 1 maintainer
vdck 2.1.4 💰
Vdck is a small, fast, and robust class for type-checking your data in JavaScript/TypeScript, wit...19 versions - Latest release: 7 months ago - 40 downloads last month - 1 stars on GitHub - 1 maintainer
Top 2.0% on npmjs.org
132 versions - Latest release: over 2 years ago - 267 dependent packages - 3,548 dependent repositories - 337 thousand downloads last month - 144 stars on GitHub - 3 maintainers
machine 15.2.3
Build functions in standardized containers.132 versions - Latest release: over 2 years ago - 267 dependent packages - 3,548 dependent repositories - 337 thousand downloads last month - 144 stars on GitHub - 3 maintainers
@writetome51/has-value-no-value 2.0.0
2 functions that check if argument is undefined or null4 versions - Latest release: over 5 years ago - 18 dependent packages - 11 dependent repositories - 35 downloads last month - 0 stars on GitHub - 1 maintainer
Top 0.8% on npmjs.org
47 versions - Latest release: 4 months ago - 480 dependent packages - 46,961 dependent repositories - 7.09 million downloads last month - 3,781 stars on GitHub - 1 maintainer
ow 3.1.1 💰
Function argument validation for humans47 versions - Latest release: 4 months ago - 480 dependent packages - 46,961 dependent repositories - 7.09 million downloads last month - 3,781 stars on GitHub - 1 maintainer
@kitiumai/npm-package-tester 3.1.1
AI-powered CLI testing tool for npm packages with Docker isolation, private package support, and ...5 versions - Latest release: 2 months ago - 360 downloads last month - 0 stars on GitHub - 1 maintainer
with-type-checkers 1.0.5
A JavaScript/TypeScript utility for adding runtime type checking and assertions to classes6 versions - Latest release: 5 months ago - 25 downloads last month - 0 stars on GitHub - 1 maintainer
@habitual/typing 1.0.3
Concise and expressive runtime type checking.4 versions - Latest release: about 5 years ago - 1 dependent package - 17 downloads last month - 0 stars on GitHub - 1 maintainer
filter-shapes 1.0.1
filter objects to save bandwidth and catch errors, powered by type-by-example2 versions - Latest release: almost 3 years ago - 32 downloads last month - 0 stars on GitHub - 1 maintainer
@writetome51/is-array-not-array 2.0.0
2 functions that check if argument is or is not array2 versions - Latest release: over 5 years ago - 19 dependent packages - 17 dependent repositories - 34 downloads last month - 0 stars on GitHub - 1 maintainer
live-tsc 1.6.2
A lightweight esbuild-based implementation of tsc that trim off the types (without type checking)15 versions - Latest release: about 3 years ago - 1 dependent package - 1 dependent repositories - 247 downloads last month - 5 stars on GitHub - 1 maintainer
@megaorm/utils 1.0.0
This package provides utility functions to validate whether a value is a MegaORM driver or a conn...1 version - Latest release: about 1 year ago - 22 downloads last month - 0 stars on GitHub - 1 maintainer
Top 1.8% on npmjs.org
78 versions - Latest release: 5 months ago - 128 dependent packages - 306,916 dependent repositories - 52.9 million downloads last month - 181 stars on GitHub - 1 maintainer
is-what 5.5.0 💰
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & s...78 versions - Latest release: 5 months ago - 128 dependent packages - 306,916 dependent repositories - 52.9 million downloads last month - 181 stars on GitHub - 1 maintainer
zod-assignability 0.0.2
TypeScript extend behavior implementation for Zod schemas2 versions - Latest release: 4 months ago - 88 downloads last month - 1 maintainer
want-type 1.1.0
a library for hassle-free type checking in Node.js2 versions - Latest release: about 6 years ago - 1 dependent repositories - 9 downloads last month - 3 stars on GitHub - 1 maintainer
primitive-predicates 2.1.4
A simple TypeScript library providing type guards for the primitive types in JavaScript.34 versions - Latest release: almost 2 years ago - 3 dependent packages - 1 dependent repositories - 39 downloads last month - 3 stars on GitHub - 1 maintainer
reliant-type 2.1.5
A modern TypeScript validation library designed around familiar interface syntax and powerful con...4 versions - Latest release: about 2 months ago - 72 downloads last month - 1 maintainer
@oneisland/validator 0.0.3
A simple tool for validation and type checking of variables in JavaScript3 versions - Latest release: over 6 years ago - 3 dependent packages - 2 dependent repositories - 81 downloads last month - 0 stars on GitHub - 1 maintainer
error-if-not-primitive 1.0.0
Function triggers error if argument is not a primitive type1 version - Latest release: almost 7 years ago - 2 dependent packages - 5 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
validated-method 1.0.3
Runtime type checking for JavaScript function parameters4 versions - Latest release: 10 months ago - 94 downloads last month - 0 stars on GitHub - 1 maintainer
ntype 0.0.11
defining interfaces for class structure and auto-type checking in javascript for Node.js5 versions - Latest release: over 12 years ago - 1 dependent package - 2 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.8% on npmjs.org
17 versions - Latest release: over 7 years ago - 9 dependent packages - 3,799 dependent repositories - 78 thousand downloads last month - 75 stars on GitHub - 2 maintainers
upcast 4.0.0
Upcast is a low-level JavaScript type checking and casting library17 versions - Latest release: over 7 years ago - 9 dependent packages - 3,799 dependent repositories - 78 thousand downloads last month - 75 stars on GitHub - 2 maintainers
@wahfung/is-what 0.0.6
Tiny javescript type check functions3 versions - Latest release: almost 4 years ago - 1 dependent package - 1 downloads last month - 0 stars on GitHub - 1 maintainer
@maluscat/runtime-type-check 1.1.1
Modular runtime type checker with focus on creating readable and smart error messages3 versions - Latest release: over 1 year ago - 8 downloads last month - 0 stars on GitHub - 1 maintainer
type-sentry 0.0.9
A powerful TypeScript library for runtime type checking and validation using decorators9 versions - Latest release: over 1 year ago - 4 downloads last month - 8 stars on GitHub - 1 maintainer
wtf-is 0.1.1
Tiny type-checking library2 versions - Latest release: almost 12 years ago - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
@envchecker/env-validator 1.1.0
A powerful environment variable validator for Node.js applications with schema validation, type c...3 versions - Latest release: about 1 year ago - 5 downloads last month - 1 maintainer
@omnitron-dev/cuid 0.4.5
CUID implementation6 versions - Latest release: about 2 months ago - 34 downloads last month - 1 maintainer
@deebeetech/is-helper 1.0.1
A collection of "is"-style helpers to help solidify if something "is" something else. Has no depe...2 versions - Latest release: 7 months ago - 9 downloads last month - 0 stars on GitHub - 1 maintainer
error-if-not-function 1.0.0
Function triggers error if argument is not type 'function'1 version - Latest release: almost 7 years ago - 6 dependent packages - 5 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
ow--fork-by-jblew-with-catching 0.13.5 💰
Function argument validation for humans4 versions - Latest release: over 6 years ago - 4 dependent packages - 8 dependent repositories - 25 downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
1 version - Latest release: about 4 years ago - 2 dependent packages - 15 dependent repositories - 39 downloads last month - 3,781 stars on GitHub - 1 maintainer
@tamagui/ow 0.28.1 💰
Function argument validation for humans1 version - Latest release: about 4 years ago - 2 dependent packages - 15 dependent repositories - 39 downloads last month - 3,781 stars on GitHub - 1 maintainer
@rastopyr/ow 0.13.2 💰
Function argument validation for humans2 versions - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 11 downloads last month - 3,876 stars on GitHub - 1 maintainer
Top 2.6% on npmjs.org
90 versions - Latest release: over 2 years ago - 511 dependent packages - 1,105,180 dependent repositories - 18 million downloads last month - 26 stars on gitlab.com - 1 maintainer
check-types 11.2.3
A little library for asserting types and values, with zero dependencies.90 versions - Latest release: over 2 years ago - 511 dependent packages - 1,105,180 dependent repositories - 18 million downloads last month - 26 stars on gitlab.com - 1 maintainer
@arcletjs/alconna 1.0.4
A High-performance, Generality, Humane Command Line Arguments Parser Library.5 versions - Latest release: almost 3 years ago - 1 dependent package - 15 downloads last month - 1 stars on GitHub - 1 maintainer
easy-enums 1.1.8
Easy but powerful enums for safer code. e.g. const Fruit = new Enum("apple pear banana"); gives y...10 versions - Latest release: over 5 years ago - 3 dependent packages - 8 dependent repositories - 69 downloads last month - 0 stars on GitHub - 1 maintainer
next-routes-typed 0.1.0
Generate type-safe route utilities for Next.js app router1 version - Latest release: over 1 year ago - 8 downloads last month - 1 maintainer
@treedy/typescript-lsp-mcp 0.1.5
MCP server providing TypeScript/JavaScript code intelligence using the official TypeScript Langua...4 versions - Latest release: 13 days ago - 377 downloads last month
@treedy/pyright-mcp 1.1.6
MCP server exposing Pyright LSP features for Python code intelligence7 versions - Latest release: 13 days ago
@razinshafayet/typedjs 0.2.0
Runtime type checking for JavaScript3 versions - Latest release: 13 days ago
types-verifier 1.0.0-alpha.2
A super tiny library that verifies types2 versions - Latest release: about 7 years ago - 1 dependent repositories - 11 downloads last month - 0 stars on GitHub - 1 maintainer
yatc 0.1.0
Yet Another Type Checker for JavaScript1 version - Latest release: about 11 years ago - 2 dependent packages - 5 dependent repositories - 17 downloads last month - 1 stars on GitHub - 1 maintainer
@jasonbyrne/dry-types 0.2.12
Reusable utility functions for type conversions and checks19 versions - Latest release: 20 days ago - 310 downloads last month - 0 stars on GitHub - 1 maintainer
is-number-checker 1.0.4
An utility to check if a value is a number (allowing string numbers optionally).5 versions - Latest release: about 1 year ago - 8 downloads last month - 1 maintainer
function.check 0.11.1
Runtime type checking in plain javascript25 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 517 downloads last month - 1 stars on GitHub - 1 maintainer
ensure-types 1.0.2
Simple helpers to ensure uncertain interfaces in typescript3 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
eslint-plugin-no-truthy-collections 1.0.4
ESLint plugin that prevents dangerous boolean coercion of arrays and objects in JavaScript and Ty...5 versions - Latest release: 8 months ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
@fab1o/check-types 14.4.0
A little library for asserting types and values.4 versions - Latest release: almost 3 years ago - 2 dependent packages - 1 dependent repositories - 15 downloads last month - 0 stars on GitHub - 1 maintainer
@fchauvel/quick-check 0.2.0
Internal DSL to check and convert JSON structures2 versions - Latest release: about 6 years ago - 2 dependent packages - 1 dependent repositories - 8 downloads last month - 1 stars on GitHub - 1 maintainer
Top 5.9% on npmjs.org
8 versions - Latest release: about 6 years ago - 6 dependent packages - 7 dependent repositories - 108 downloads last month - 24 stars on GitHub - 1 maintainer
variable-type 1.0.0 💰
Runtime type checking for variable and similar objects.8 versions - Latest release: about 6 years ago - 6 dependent packages - 7 dependent repositories - 108 downloads last month - 24 stars on GitHub - 1 maintainer
@composi/get-type 1.0.12
Function to get the type of the provided value. This is not the same as 'typeof'. It returns the ...13 versions - Latest release: almost 6 years ago - 3 dependent packages - 4 dependent repositories - 12 downloads last month - 1 stars on GitHub - 1 maintainer
@protolabo/zenjs 0.2.1
A comprehensive, type-safe utility library for common programming tasks3 versions - Latest release: 3 months ago - 14 downloads last month - 0 stars on GitHub - 1 maintainer
@sounisi5011/ts-utils-is-property-accessible 1.0.3
Check if a value is property accessible4 versions - Latest release: over 3 years ago - 4 dependent packages - 1 dependent repositories - 65 downloads last month - 5 stars on GitHub - 1 maintainer
@kevincuadros/react-code 1.3.2
> Pin input component for React3 versions - Latest release: over 3 years ago - 1 dependent package - 1 downloads last month - 0 stars on GitHub - 1 maintainer
Top 7.9% on npmjs.org
6 versions - Latest release: over 3 years ago - 8 dependent packages - 5 dependent repositories - 1.73 thousand downloads last month - 79 stars on GitHub - 1 maintainer
vite-plugin-vitest-typescript-assert 1.1.4 💰
🔥 TypeScript type assertion plugin for vitest.6 versions - Latest release: over 3 years ago - 8 dependent packages - 5 dependent repositories - 1.73 thousand downloads last month - 79 stars on GitHub - 1 maintainer
error-if-not-finite-number 2.0.1
Function triggers error if argument is not finite number of type 'number'3 versions - Latest release: over 5 years ago - 17 dependent packages - 21 dependent repositories - 43 downloads last month - 0 stars on GitHub - 1 maintainer
khyron 0.2.1
Run-time type checking for JavaScript3 versions - Latest release: almost 8 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 1 stars on GitHub - 1 maintainer
truthify 1.0.0
Helps you confirm the existence of specified falsy values (e.g. 0)1 version - Latest release: over 10 years ago - 1 dependent repositories - 9 downloads last month - 1 maintainer
tulpar 1.0.1 unpublished
A comprehensive JavaScript and TypeScript enhancement library providing runtime type safety, perf...3 versions - Latest release: about 2 months ago - 100 downloads last month - 1 maintainer
preid 0.6.0
Unique IDs with prefixes, inspired by Stripe10 versions - Latest release: over 2 years ago - 24 downloads last month - 1 maintainer
sniffly 1.0.2
A lightweight TypeScript utility library for performing common type-safe value checks with type n...3 versions - Latest release: about 1 year ago - 3 downloads last month - 0 stars on GitHub - 1 maintainer
lukinto-utils-type-checking 1.0.0
A library of type checking utilities.1 version - Latest release: almost 3 years ago - 1 downloads last month - 0 stars on GitHub - 1 maintainer
infrared-core 0.0.1
Fast light weight inferred static type checker in real time for JavaScript.1 version - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 13 downloads last month - 47 stars on GitHub - 1 maintainer
dhi 1.1.18
Ultra-fast Zod 4 drop-in replacement - 20x faster average, full API parity, SIMD WASM, 28KB binary23 versions - Latest release: 15 days ago - 506 downloads last month - 0 stars on GitHub - 1 maintainer
typeguru 0.0.4
TypeGuru is a lightweight TypeScript utility library for type checking. It includes utility funct...4 versions - Latest release: almost 3 years ago - 13 downloads last month - 0 stars on GitHub - 1 maintainer
tisnthings 1.6.22
Smallish set of things I often use. Favors brevity.5 versions - Latest release: almost 10 years ago - 1 dependent package - 1 dependent repositories - 2 downloads last month - 0 stars on GitHub - 1 maintainer
Top 3.4% on npmjs.org
13 versions - Latest release: almost 8 years ago - 40 dependent packages - 59 dependent repositories - 48.5 thousand downloads last month - 89 stars on GitHub - 1 maintainer
predicates 2.0.3
Set of various predicates for type checking, assertions, filtering etc13 versions - Latest release: almost 8 years ago - 40 dependent packages - 59 dependent repositories - 48.5 thousand downloads last month - 89 stars on GitHub - 1 maintainer
typisch 0.0.0
Set-theory based runtime type system1 version - Latest release: almost 7 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 3 stars on GitHub - 3 maintainers
@molinit/validator 1.0.2
A flexible, type-safe validation library for TypeScript/JavaScript with declarative schema-based ...2 versions - Latest release: 3 months ago - 1 maintainer
Top 8.3% on npmjs.org
9 versions - Latest release: over 7 years ago - 10 dependent packages - 6 dependent repositories - 451 downloads last month - 199 stars on GitHub - 2 maintainers
hm-def 1.0.2
Runtime type checking with Hindley Milner signatures9 versions - Latest release: over 7 years ago - 10 dependent packages - 6 dependent repositories - 451 downloads last month - 199 stars on GitHub - 2 maintainers
@moon7/inspect 0.1.1
Lightweight, type-safe runtime type checking library for TypeScript and JavaScript2 versions - Latest release: 9 months ago - 10 downloads last month - 0 stars on GitHub - 1 maintainer
envkeeper 2.2.0
🛡️ The most human-friendly environment variable validator for Node.js - Beautiful error messages ...5 versions - Latest release: 4 months ago - 12 downloads last month - 0 stars on GitHub - 1 maintainer
@we-mobius/type-check 0.0.4
Type-checking support.4 versions - Latest release: almost 2 years ago - 9 dependent packages - 1 dependent repositories - 82 downloads last month - 1 maintainer
error-if-not-object 2.0.0
Function triggers error is passed argument is not an object. Arrays are considered objects. Null...2 versions - Latest release: over 5 years ago - 4 dependent packages - 5 dependent repositories - 2 downloads last month - 0 stars on GitHub - 1 maintainer
notmytype 2.0.0
Type-check your function inputs with syntax like T(s, T.string, buf, Buffer, strings, T.list(T.st...13 versions - Latest release: over 10 years ago - 1 dependent package - 2 dependent repositories - 13 downloads last month - 2 stars on GitHub - 1 maintainer
typso 1.0.0
A comprehensive runtime type-checking library for JavaScript, React, Node.js, and Express.1 version - Latest release: over 1 year ago - 1 downloads last month - 0 stars on GitHub - 1 maintainer
sniff-check 0.2.2
🎯 Opinionated TypeScript/Next.js Development Toolkit - Find large files, unused imports, broken i...15 versions - Latest release: 4 months ago - 190 downloads last month - 0 stars on GitHub - 1 maintainer
ts-lsp-mcp 0.1.3
MCP server exposing TypeScript LSP-like functionality to AI agents2 versions - Latest release: about 2 months ago - 1 maintainer
jstype 0.0.6
Extended and extensible javascript type checking6 versions - Latest release: over 12 years ago - 3 dependent packages - 4 dependent repositories - 7 downloads last month - 2 stars on GitHub - 1 maintainer
redux-action-type-validator 1.1.0
Type validator for redux actions4 versions - Latest release: over 9 years ago - 1 dependent repositories - 11 downloads last month - 0 stars on GitHub - 1 maintainer
@djodjonx/wiredi 0.0.13
WireDI - Wire your dependency injection with type safety and compile-time validation8 versions - Latest release: 25 days ago
go-types 1.3.1
Type-checking utilities for JavaScript5 versions - Latest release: over 3 years ago - 2 dependent packages - 3.69 thousand downloads last month - 0 stars on GitHub - 1 maintainer
@utilify/core 2.0.5
Modern, strongly typed, and safe utility function library for JavaScript and TypeScript. Includes...7 versions - Latest release: 5 months ago - 1.77 thousand downloads last month - 2 stars on GitHub - 1 maintainer
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typescript
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