JSPM

Formatting Date objects as strings since 2013

sprintf formatting targetted for CLI

maximally minimal string formatting library

String formatting inspired by Python's str.format()

Various string formatting & utility functions

Hex string formatters for 4/8/16/24/32/48/64bit words, hexdump formatting of binary data

Parse, clean, remove formatting (unformat) numbers in strings.

String formatting library for node.js

String formatting for Node.js and AngularJS.

ANSI colors for stringd formatting

POSIX sprintf(3)-style String Formatting for JavaScript

Simple link and newline text formatting for react

Util.format-like string formatting utility.

Lightweight module for formatting numbers to a human readable string

String formatting like Python's .format()

A lightweight, modular and stand-alone JavaScript implementation of a string formatting function that supports composite format strings, globalization and customization

Python flavored string formatting

String difference with colour for Node.js and ANSI formatting. [PUBLIC]

Data Olympics - reversing strings and formatting dollars into strings like a champ.

tiniest string formatting library

Helps with complex printf-style formatting

A Typescript formatting library inspired by c# string.format("My {0} string", "Hello World")

Dead simple string formatting

Utilities for transforming and formatting text (i.e. strings)

Python string formatting mini-language, transcoded from Jython.

Functional-ish JavaScript string formatting, with inspirations from Python.

Modify strings, generate sourcemaps

Esoteric string formatting

Simple Python-style string formatting for JS

Apply flexible numeric masks to any string. Perfect for phone numbers, documents, and custom input formatting.

A collection of useful string formatting utilities

ANSI escape codes for styling strings in the terminal

Strip ANSI escape codes from a string

Terminal string styling done right

Regular expression for matching ANSI escape codes

Java's String.format() compatible string formatting library for JavaScript.

Wordwrap a string with ANSI escape codes

A comprehensive collection of TypeScript/JavaScript utility functions for common programming tasks. Includes validation, object manipulation, date handling, string formatting, and more. Zero dependencies, fully typed, and optimized for performance.

ANSI escape codes for manipulating the terminal

Slice a string with ANSI escape codes

Easily add ANSI colors to your text and symbols in the terminal. A faster drop-in replacement for chalk, kleur and turbocolor (without the dependencies and rendering bugs).

String Formatting for JavaScript

Opinionated HTML formatter focused towards making HTML diffs readable.

A collection of personal utilities to live a happier life

CommonJS version - The smallest and fastest command-line coloring package on the internet

Easy string formatting script

Simple micro templating

The smallest and fastest command-line coloring package on the internet

Terminal string styling with tagged template literals

Get the visual width of a string - the number of columns required to display it

Escape RegExp special characters

Get the native type of a value.

The color gray, in ansi.

Check if the character represented by a given Unicode code point is fullwidth

The string_decoder module from Node core

Newline character converter

Strip UTF-8 byte order mark (BOM) from a string

Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`

Parse JSON with more helpful errors

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Get a stream as a string, Buffer, ArrayBuffer or array

Beautiful color gradients in terminal output

Returns true if a string has an extglob.

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Strip the final newline character from a string or Uint8Array

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

A lightweight and powerful utility library for advanced string manipulation, case conversion, and formatting.

ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

Efficient implementation of Levenshtein algorithm with locale-specific collator support.

Matches strings against configurable strings, globs, regular expressions, and/or functions

The color red, in ansi.

Indent each line in a string

The color cyan, in ansi.

`JsSimpleDateFormat` is for formatting and parsing date-time and duration. It formats a `Date` object to be a string as the defined pattern. It can also parse a string to be a `Date` object based on the defined pattern. It supports the pattern which is

Parse String to Number based on configuration

Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Convert a camelized string into a lowercased one with a custom separator: unicornRainbow → unicorn_rainbow

ES5 spec-compliant shim for String.prototype.trim

Measure the difference between two strings using the Levenshtein distance algorithm

A robust HTML entities encoder/decoder with full Unicode support.

Querystringify - Small, simple but powerful query string parser.

Get the real length of a string - by correctly counting astral symbols and ignoring ansi escape codes

Normalize a URL

Strip leading whitespace from each line in a string

Truncate a string to a specific width in the terminal

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

Compile regular expressions' unicodeSets (v) flag.

Strip redundant indentation and indent the string

Small footprint URL parser that works seamlessly across Node.js and browser environments

Generate a cryptographically strong random string

Get the shortest leading whitespace from lines in a string

Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible

Generate a unique random string

Strips ANSI Control Characters from string or stream

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.

A robust & optimized `String.prototype.repeat` polyfill, based on the ECMAScript 6 specification.

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

Detect the indentation of code

Repeat the given string n times. Fastest implementation for repeating a string.

Determine the East Asian Width of a Unicode character

Trim newlines from the start and/or end of a string

Get the visual width of the widest line in a string - the number of columns required to display it

Check if a string has ANSI escape codes

mdast utility to get the plain text content of a node

Functions for dealing with a PostgresSQL connection string

a few common utility template tags for ES2015

Fastest Levenshtein distance implementation in JS.

A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.

Parse regular expressions' unicodeSets (v) flag.

Wildcard matching tools

Convert object keys to camel case

LZ-based compression algorithm

Tokenize a string into an array of string parts and format identifier objects.

Parse and stringify URL query strings

Generate string from a token array by interpolating values.

Check if a character is decimal

Compute ripemd160 of bytes or strings.

Get the gzipped size of a string or buffer

Check if a character is hexadecimal

Check if a character is alphanumerical

Easy way to split a string on a given character unless it's quoted or escaped.

Math and string formula parser.

Check if a character is alphabetical

Library of miscellaneous formatting and helper functions

micromark utility to decode markdown strings

Strip ANSI color codes from a string. No dependencies.

Convert a string to pascal case (upper camelcase).

Convert milliseconds to a human readable string: `1337000000` → `15d 11h 23m 20s`

Convert object keys from camel case

A module that parses a string as regular expression and returns the parsed value.

Create an array by repeating the given value n times.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

The color green, in ansi.

Isomorphic, functional type-checking for Javascript

Hashing made simple. Get the hash of a buffer/string/stream/file.

Split a string on the first occurance of a given separator

The color grey, in ansi.

The color dim, in ansi.

Get the system locale

The color yellow, in ansi.

Cross-platform success symbol.

The color bgmagenta, in ansi.

Cross-platform error symbol.

Convert a string index to its line and column position

The color bgred, in ansi.

The color bgwhite, in ansi.

The color inverse, in ansi.

Cross-platform warning symbol.

Convert a string to a valid safe filename

Compare alphanumeric strings the same way a human would, using a natural order algorithm

The color bold, in ansi.

The color blue, in ansi.

The color bgcyan, in ansi.

The color bgblue, in ansi.

The color italic, in ansi.

The color bgyellow, in ansi.

The color underline, in ansi.

The color bggreen, in ansi.

The color hidden, in ansi.

Remove wrapping quotes from a string.

The most efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.

Formattable string with the same API as an intrinsic string

Mapping between standard locale identifiers and Windows locale identifiers (LCID)

The color magenta, in ansi.

The color reset, in ansi.

The color black, in ansi.

The color white, in ansi.

The color strikethrough, in ansi.

The color bgblack, in ansi.

Cross-platform info symbol.

Functional errors with formatted output

Various helper utilities

Useful utilities for working with Uint8Array (and Buffer)

Convert a value to a ReadableStream

Multi-colour console output from chalk with added awesome

ES2017 spec-compliant String.prototype.padEnd shim.

Repeat a string - fast

Trim a consecutively repeated substring: foo--bar---baz → foo-bar-baz

Returns `true` if the value is a primitive.

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Functions that surround a string with ansicolor codes so it prints in color.

Customizable String Formatter

Simple wildcard matching

Remove the trailing spaces from a string.

Strip a substring from the start/end of a string

generic javascript number/string formatting (bytes, milliseconds, ...)

Capitalize every word in a string: `unicorn cake` → `Unicorn Cake`

Check if a string is a URL

Stringify Object as tree structure

Escape strings for use as JavaScript string literals

Serializes any DOM node into a String

hast utility to get the plain-text value of a node

Iterate any iterable JS value. Works robustly in all environments, all versions.

Remove leading indentation from ES6 template literals.

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

Pluralize a word

Get the line and column number of a specific character in a string

Terminal string styling done right

A string formatter and validator based on masks

Strip a byte order mark (BOM) from a string.

Returns true if a windows file path has invalid characters.

A javascript library for formatting and manipulating text (strings).

A TypeScript port of the Java StringTemplate 4 library

Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`

A simple string template function based on named or indexed arguments

fast string hashing function

Native JS murmur hash implementation

Check if a character is a whitespace character

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.

String manipulation extensions for Underscore.js javascript library.

hast utility to get the plain-text value of a node according to the `innerText` algorithm

Check if a character is a word character

Regular expression for matching HTML comments

Check if a string is SVG

Elegant spinner for interactive CLI apps

Find multiple RegExp matches in a string

Reduce function calls in a string, using a callback

DOMParser.parseFromString for XML with IE8 fallback

Jest snapshot serializer that beautifies HTML.

Pure-JS printf

Convert Unicode characters to Latin characters using transliteration

A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.

Slugify a string

Remove any existing casing from a string.

Right pad a string with zeros or a specified string. Fastest implementation.

Returns true if a file path does not contain any invalid characters.

Various helper utilities for working with buffers and binary data

sprintf parser and basic formatter

ES2019 spec-compliant String.prototype.trimLeft shim.

Check if a string is an IP address

Extensible string utility for converting, identifying and flipping string case

ES2017 spec-compliant String.prototype.padStart shim.

remove diacritics from strings

Returns true if the value passed is all whitespace.

Convert a string to space case.

nlcst utility to transform a tree to a string

Returns `true` if an array has a glob pattern.

String encoding utilitlies extracted from TweetNaCl.js

ES2019 spec-compliant String.prototype.trimLeft shim.

Convert HTML entities to HTML characters, e.g. `>` converts to `>`.

Math and string formula parser.

Serialises error object to normal object

A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.

Lightweight format utility for the browser, based on util.format().

Check if a string only contains alphanumeric characters

A lightweight package for formatting strings with parameter interpolation

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Convert efficiently index to/from line-column in a string