Awesome Micro Npm Packages Overview

A curated list of small, focused npm packages.

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Awesome Micro npm Packages

A curated list of small, focused Node.js modules.

Inspired by the awesome (⭐268k) list thing.

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Modules

Array

is-sorted (⭐21) - A small module to check if an Array is sorted.
array-first (⭐11) - Get the first element or first n elements of an array.
array-last (⭐34) - Return the last element in an array.
arr-flatten (⭐60) - Recursively flatten an array or arrays.
dedupe (⭐24) - Remove duplicates from an array.
array-range (⭐25) - Creates a new array with given range.
arr-diff (⭐44) - Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
filled-array (⭐41) - Returns an array filled with the specified input
map-array (⭐4) - Map object keys and values into an array.
in-array (⭐16) - Return true if any of passed values exists in array - faster than using indexOf.
unordered-array-remove (⭐117) - Efficiently remove an element from an unordered array without doing a splice.
array-swap (⭐7) - Swap position of two items in an array.
mirrarray (⭐5) - Creates a keymirror object from an array of valid keys.
group-array (⭐54) - Group array of objects into lists.
array.chunk (⭐11) - Split array/TypedArray to chunks of given size.
fast-cartesian (⭐55) - Fast cartesian product.

String

decamelize (⭐229) - Convert a camelized string into a lowercased one with a custom separator: unicornRainbow → unicorn_rainbow.
pad-left (⭐44) - Left pad a string with zeros or a specified string.
to-camel-case (⭐36) - Convert a string to a camel case.
to-capital-case (⭐11) - Convert a string to a capital case.
to-constant-case (⭐4) - Convert a string to a constant case.
to-dot-case (⭐5) - Convert a string to a dot case.
to-no-case (⭐17) - Remove an existing case from a string.
to-pascal-case (⭐3) - Convert a string to a pascal case.
to-sentence-case (⭐6) - Convert a string to a sentence case.
to-snake-case (⭐26) - Convert a string to a snake case.
to-space-case (⭐6) - Convert a string to a space case.
to-title-case (⭐17) - Convert a string to a title case.
node-slug (⭐1.1k) - slugifies even utf-8 chars.
rtrim (⭐0) - Strip whitespace - or other characters - from the end of a string.
slice.js (⭐34) - Javascript library to enhance String.substring / Array.slice with python slice style.
strip-ansi (⭐369) - Strip ANSI escape codes.
striptags (⭐485) - An implementation of PHP's strip_tags in Node.js.
parse-next-json-value (⭐1) - Parse next JSON value from string allowing extraneous characters after value.
pluralize (⭐1) - A very tiny library to pluralize words

Date & Time

pretty-ms (⭐929) - Convert milliseconds to a human readable string: 1337000000 → 15d 11h 23m 20s.
hirestime (⭐16) - A wrapper around the built-in high resolution timer which simplifies the calculation of timestamps.
periods (⭐1) - Defined time-periods constants for Javascript, in milliseconds.
fecha (⭐2k) - Javascript Date formatting and parsing.
akamai-time-reference (⭐3) - Get reference time using Akamai's time reference service.
timeago.js (⭐5k) - A tiny(~1.7kb) library used to format date with *** time ago statement.
count-days-in-month (⭐1) - Get the number of days in a given month.
time-stamp (⭐112) - Get a formatted timestamp.
twas (⭐245) - Generate a relative time string (Example: "3 seconds ago")

Object

map-obj (⭐178) - Map object keys and values into a new object.
filter-obj (⭐91) - Filter object keys and values into a new object.
object-values (⭐26) - Get the values of an object.
object-pairs (⭐2) - Turn an object into list of [key, value] pairs for mapping, iterating or other purposes.
zipmap (⭐4) - Returns a map with the keys mapped to the corresponding vals. zipmap also accepts a single value of objects or pairs.
just-pluck (⭐11) - Pluck without the madness.
deep-equal (⭐732) - Node's assert.deepEqual() algorithm as a standalone module.
deep-assign (⭐248) - Recursive Object.assign().
set-value (⭐260) - Create nested values and any intermediaries dot notation ('a.b.c') paths.
get-value (⭐230) - Use property paths (a.b.c) to get a nested value from an object.
has-value (⭐27) - Returns true if a value exists, false if empty. Works with deeply nested values using dot notation ('a.b.c') paths.
has-key-deep (⭐1) - Deep-search objects for keys. Keys can be searched by providing an array of keys, or using a dot-notiation.
flatkeys (⭐3) - Flatten object key hierarchies into a list of strings using a custom separator.
flatten-obj (⭐20) - Converts an object literal with deeply nested nodes to a simple key/value object.
is-empty-object (⭐11) - Check if an object is empty.
stringify-object (⭐298) - Stringify an object/array like JSON.stringify just without all the double-quotes.
sorted-object (⭐35) - Returns a copy of an object with its keys sorted.
static-props (⭐3) - Defines static object attributes using Object.defineProperties
missing-deep-keys (⭐0) - Returns an array of keys from first object that are missing in second.
has-own-property (⭐2) - Check if an object has a local property.
merge-objects (⭐2) - Deep-merge two objects. Arrays that are values of the same object key get concatenated.
deep-object-diff (⭐945) - Deep diff two JavaScript Objects while preserving the data structure. Including nested structures of Arrays and Objects.

Function

compose-function (⭐57) - Compose a new function from smaller functions f(g(x)).
curry (⭐314) - A curry function without anything too clever.
once (⭐216) - Run a function exactly one time.
deep-bind (⭐8) - Bind a context to all functions in an object, including deeply nested functions.
identity-function - Always return the input argument.
mem (⭐1k) - An optimization technique used to speed up consecutive function calls by caching the result of calls with identical input.
throttle-debounce (⭐973) - Throttle/debounce your functions.
compose-tiny (⭐46) - A very tiny and fast compose function.

Math

is-even (⭐179) - A good way to tell if a number is even or not (avoids type issues). Uses is-odd and is-number under the hood.
is-number (⭐232) - Returns true if the value is a number.
is-odd (⭐271) - A good way to tell if a number is odd or not (avoids type issues). Uses is-number under the hood.
easy-math.js (⭐7) - A tiny easy math library including addition, multiplication, subtraction, and division.
my-prime (⭐2) - A good way to tell if a number is prime or not.
fun-gcd (⭐1) - A tiny math library to get gcd of two numbers using Euclidean algorithm

Stream

through2 (⭐1.9k) - Tiny wrapper around Node streams2 Transform to avoid explicit subclassing noise.
through2-filter (⭐35) - A through2 to create an Array.prototype.filter analog for streams.
through2-map (⭐70) - A through2 to create an Array.prototype.map analog for streams.
stream-spigot (⭐15) - A readable stream generator, useful for testing or converting simple functions into Readable streams.
concat-stream (⭐570) - writable stream that concatenates strings or data and calls a callback with the result.
JSONStream (⭐1.9k) - streaming JSON.parse and stringify
through2-map-promise (⭐3) - A small promise-based wrapper for through2.
pump (⭐895) - pipe streams together and close all of them if one of them closes.
split (⭐346) - Break up a stream and reassemble it so that each line is a chunk.
is-stream (⭐107) - Check if something is a Node.js stream.
syncthrough (⭐76) - Transform your data as it pass by, synchronously.

Promise

pify (⭐1.5k) - Promisify a callback-style function.
promise-all-props (⭐10) - Like Promise.all but for object properties.
sleep-promise (⭐81) - Resolves a promise after a specified delay.
is-promise (⭐277) - Test whether an object looks like a promises-a+ promise.

Data Structure

quetie (⭐111) - Just the cutest and tiniest queue/deque implementation!

File System

rimraf (⭐5.3k) - A deep deletion module for node (like rm -rf).
mkdirp - Recursively mkdir, like mkdir -p.
du (⭐29) - A simple JavaScript implementation of du -sb.
file-size (⭐231) - Lightweight filesize to human-readable / proportions w/o dependencies.
tmp (⭐723) - Temporary file and directory creator for node.js.
fs-promise (⭐171) - Node fs methods as Promise/A+ (optional fs-extra, graceful-fs).
read-git-user (⭐3) - Reads the username and email from .gitconfig 🔧 and returns it as json object.

Browser

delegate (⭐183) - Lightweight event delegation.
insert-css - Insert a string of css into the head
dom-element-value (⭐6) - DOM element value getter/setter.
image-promise (⭐144) - Load one or more <img>s in a Promise.
get-media-size (⭐12) - Get the original size of any img/video/svg/canvas tags or canvas context.
document-ready (⭐59) - Document ready listener for modern browsers.
copee (⭐138) - Copy text from browser to clipboard...natively!

Semver

semver (⭐4.8k) - The semantic version parser used by npm.
semver-max (⭐3) - Find maximum (or minimum) version according to semver.
semver-first-satisfied (⭐2) - Find minimum in an array of version that satisfies a semver range.

CLI

abbrev (⭐158) - Calculate the set of unique abbreviations for a given set of strings.
glob (⭐8.1k) - Glob functionality for node.js.
username (⭐142) - Get the username of the current user.
minimist - Parse argument options.
png-to-ico (⭐141) - Convert png to windows ico format.
help-version (⭐5) - Easily handle --help and --version arguments in your CLI application

Module management

pkg-conf (⭐113) - Get namespaced config from the closest package.json.
normalize-pkg (⭐18) - Normalize values in package.json to improve compatibility, programmatic readability and usefulness with third party libs.

Generators

is-generator (⭐15) - Check whether a given value is a generator function.

Other

uuid (⭐14k) - Generate RFC-compliant UUIDs in JavaScript.
node-mime (⭐2k) - Comprehensive MIME type mapping API based on mime-db module.
not-defined (⭐3) - Checks if foo is not defined, i.e. undefined, null, an empty string, array or object.
is-fqdn (⭐22) - Check if a string represent a fully qualified domain name.
shurley (⭐6) - Parses URLs from user input (with potential typos in protocols, bad copy+paste, etc.) and returns a proper URL.
mime-type-check (⭐5) - Get the MIME type of a file by its extension.
nanoid (⭐22k) - A tiny (130 bytes), secure, URL-friendly, unique string ID generator for JavaScript