helpers4 vs Alternative Libraries

A comparison of helpers4 with popular TypeScript/JavaScript utility libraries.

Overview

Library	Functions	API Style	Architecture	Tree-shakable	TypeScript	License	Maintained
helpers4	312	Direct	Modular	ESM	native	LGPL	Yes
radashi	~130	Direct	Monolith	ESM	native	MIT	Yes
radash	~90	Direct	Monolith	ESM	native	MIT	No
lodash	~300	Chainable	Monolith	opt-in	unofficial	MIT	Low
es-toolkit	~300	Direct	Monolith	ESM	native	MIT	Highly
remeda	~100	Pipe	Monolith	ESM	native	MIT	Yes
ramda	~200	Curried	Monolith	limited	unofficial	MIT	Low
rambda	~190	Curried	Monolith	ESM	native	MIT	Yes
moderndash	~50	Direct	Monolith	ESM	native	MIT	Yes

Glossary — Direct: call the function directly, fn(x). Chainable: wrap the value in a chain object, _(x).map(f).value(). Pipe: compose functions left-to-right, pipe(x, fn1, fn2). Curried: functions take one argument at a time, fn(a)(b), point-free style. Modular: split into independent packages, install only what you use. Monolith: one package containing everything.

helpers4 vs Radashi

Radashi (~130 functions, the maintained fork of Radash) provides low-level data primitives (sort, group, clone, pick, map); helpers4 provides ready-made solutions for domain problems radashi deliberately excludes (dates, URLs, semver, observables). They’re complementary — see the detailed comparison.

helpers4 vs Radash

Radash is the predecessor of radashi and is archived, no longer maintained. If you’re on radash, migrate to radashi (its maintained fork); add helpers4 alongside it if you also need date/URL/version/observable helpers.

helpers4 vs Lodash

Lodash is the most popular JS utility library (~300 functions), built for a pre-ES2015 world and still ES5-compatible. helpers4 is modern (ES2024+), minimal, and focused on gaps lodash doesn’t cover (dates, URLs, semver, observables, typed promise guards) rather than competing on raw function count — see the detailed comparison.

helpers4 vs es-toolkit

es-toolkit (~300 functions, maintained by Toss/Viva Republica) is a fast, modern, fully tree-shakable lodash replacement — the most actively developed library in this comparison — that also reaches into Map/Set utilities and concurrency primitives (Mutex, Semaphore) helpers4 doesn’t touch. helpers4 still covers its own domain-specific ground (dates, URLs, semver, observables, Temporal guards) that es-toolkit’s scope never aimed for. See the detailed comparison.

helpers4 vs Remeda

Remeda is a TypeScript-first library built around a dual data-first/data-last pipe() with lazy evaluation and strong type inference. helpers4 also ships a pipe (pipe()/compose()/curry(), eager) plus its own domain-specific utilities. They serve different purposes and can be combined — see the detailed comparison.

helpers4 vs Ramda

Ramda is a purely functional, auto-curried library (lenses, transducers, point-free style) for FP purists — low maintenance activity these days. helpers4 is pragmatic utility-first, not point-free. If you want the same FP style actively maintained and TypeScript-native, see Rambda below instead.

helpers4 vs Rambda

Rambda is the actively-maintained, TypeScript-native alternative in Ramda’s curried/point-free space (last published 2026-05-15). It doesn’t reach into any of helpers4’s domain-specific categories — synchronous data transforms only, no date/URL/semver/observable/promise coverage. See the detailed comparison.

helpers4 vs Moderndash

Moderndash is a smaller (~50 functions), newer TypeScript-first lodash-inspired library covering array/object/string/number basics, plus a small Promise category (sleep, timeout, retry, Queue) — conceptually similar to the concurrency gaps also found in es-toolkit. Roughly a sixth of helpers4’s function count, no domain-specific coverage (dates, URLs, semver, observables).

Feature matrix

What each library covers — and what helpers4 uniquely provides:

Category	helpers4	radashi	lodash	es-toolkit	remeda	ramda	rambda
Array manipulation	✅	✅	✅	✅	✅	✅	✅
Object manipulation	✅	✅	✅	✅	✅	✅	✅
String manipulation	✅	✅	✅	✅	✅	✅	✅
Type checking	✅	✅	✅	✅	✅	✅	✅
Number utilities	✅	✅	✅	✅	✅	✅	✅
Function utilities	✅	✅	✅	✅	✅	✅	✅
Date utilities	✅	—	—	—	—	—	—
URL utilities	✅	—	—	—	—	—	—
Semver utilities	✅	—	—	—	—	—	—
Observable utilities	✅	—	—	—	—	—	—
Promise guards	✅	—	—	—	—	—	—
Async/parallel	✅	✅	—	✅	—	—	—
Map/Set utilities	—	—	—	✅	—	—	—
Concurrency primitives (Mutex/Semaphore/timeout)	—	—	—	✅	—	—	—
Pipe/compose	✅	—	_.chain	✅ (flow)	✅	✅	✅
FP (curry, lenses)	✅ (curry only)	—	_.curry	✅ (curry only)	—	✅	✅ (no curry)
Random/shuffle	—	✅	✅	✅	—	—	—
Collection chaining	—	—	✅	—	✅	✅	✅
Statistics (median/percentile)	—	—	—	✅	—	—	—

Rows in bold are gaps on the helpers4 side worth tracking — see typescript/TODO.md for the prioritized list.

Choosing the right library

You need…	Best choice
Date formatting, comparison, normalization	helpers4
URL path manipulation	helpers4
Semver parsing and comparison	helpers4
RxJS observable utilities	helpers4
Typed promise assertions	helpers4
General-purpose modern toolkit	radashi
Fastest/smallest lodash replacement, migrating from lodash	es-toolkit
Map/Set utilities, Mutex/Semaphore, median/percentile	es-toolkit
Pipe-based data transformations	remeda
Functional programming (currying, lenses)	ramda or rambda
Maximum function coverage, legacy support	lodash
Multiple needs	helpers4 + radashi or helpers4 + es-toolkit (they’re complementary)