JSPM

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

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

Simple micro templating

Terminal string styling with tagged template literals

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

Escape RegExp special characters

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

Get the native type of a value.

The string_decoder module from Node core

The color gray, in ansi.

Newline character converter

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

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

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

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

Beautiful color gradients in terminal output

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

Returns true if a string has an extglob.

Strip the final newline character from a string or Uint8Array

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

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

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.

Indent each line in a string

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

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

`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

The color red, in ansi.

The color cyan, in ansi.

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

Parse String to Number based on configuration

ES5 spec-compliant shim for String.prototype.trim

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

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

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

Querystringify - Small, simple but powerful query string parser.

Measure the difference between two strings using the Levenshtein distance algorithm

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

Strip leading whitespace from each line in a string

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

Normalize a URL

Truncate a string to a specific width in the terminal

Strip redundant indentation and indent the string

Compile regular expressions' unicodeSets (v) flag.

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 cryptographically strong random string

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

Generate a unique random string

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

Strips ANSI Control Characters from string or stream

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

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

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

Functions for dealing with a PostgresSQL connection string

mdast utility to get the plain text content of a node

Parse regular expressions' unicodeSets (v) flag.

LZ-based compression algorithm

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.

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

Wildcard matching tools

Parse and stringify URL query strings

Convert object keys to camel case

Compute ripemd160 of bytes or strings.

Generate string from a token array by interpolating values.

Check if a character is hexadecimal

Check if a character is decimal

Get the gzipped size of a string or buffer

Check if a character is alphanumerical

Check if a character is alphabetical

micromark utility to decode markdown strings

Library of miscellaneous formatting and helper functions

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

Math and string formula parser.

Convert a string to pascal case (upper camelcase).

Convert object keys from camel case

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

Strip ANSI color codes from a string. No dependencies.

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.

Isomorphic, functional type-checking for Javascript

The color green, in ansi.

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.

Cross-platform success symbol.

Get the system locale

The color bgblue, in ansi.

The color yellow, in ansi.

The color bold, in ansi.

The color italic, in ansi.

The color bgyellow, in ansi.

Convert a string index to its line and column position

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

The color blue, in ansi.

The color bgcyan, in ansi.

The color bgmagenta, in ansi.

Cross-platform error symbol.

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

Formattable string with the same API as an intrinsic string

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

The color underline, in ansi.

Remove wrapping quotes from a string.

The color bggreen, in ansi.

The color hidden, in ansi.

The color magenta, in ansi.

The color reset, in ansi.

The color black, in ansi.

The color bgblack, in ansi.

The color white, in ansi.

The color strikethrough, in ansi.

Functional errors with formatted output

Cross-platform info symbol.

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

Various helper utilities

Convert a value to a ReadableStream

Multi-colour console output from chalk with added awesome

Useful utilities for working with Uint8Array (and Buffer)

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.

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

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

Customizable String Formatter

Strip a substring from the start/end of a string

Simple wildcard matching

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

Remove the trailing spaces from a string.

Check if a string is a URL

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

Escape strings for use as JavaScript string literals

Remove leading indentation from ES6 template literals.

Stringify Object as tree structure

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

Pluralize a word

A TypeScript port of the Java StringTemplate 4 library

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

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

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

Serializes any DOM node into a String

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

A string formatter and validator based on masks

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

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

Terminal string styling done right

A simple string template function based on named or indexed arguments

Returns true if a windows file path has invalid characters.

fast string hashing function

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.

Native JS murmur hash implementation

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

Check if a character is a whitespace character

Check if a string is SVG

Check if a character is a word character

Elegant spinner for interactive CLI apps

Find multiple RegExp matches in a string

Jest snapshot serializer that beautifies HTML.

Regular expression for matching HTML comments

DOMParser.parseFromString for XML with IE8 fallback

Reduce function calls in a string, using a callback

Convert Unicode characters to Latin characters using transliteration

Pure-JS printf

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

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

Slugify a string

Various helper utilities for working with buffers and binary data

Remove any existing casing from a string.

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

sprintf parser and basic formatter

ES2017 spec-compliant String.prototype.padStart shim.

Check if a string is an IP address

Returns true if the value passed is all whitespace.

nlcst utility to transform a tree to a string

Extensible string utility for converting, identifying and flipping string case

Convert a string to space case.

ES2019 spec-compliant String.prototype.trimLeft shim.

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

remove diacritics from strings

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

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

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

A lightweight package for formatting strings with parameter interpolation

Check if a string only contains alphanumeric characters

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

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Write data to a random temporary file

Convert a string to camel case.

strings comparison matchers for chai

Zero-dependency unicode-aware string tools

Check if a string is HTML

Replace search occurrences with a replacement string.

Appends a bullet before string (to mimick lists in ASCII)

Get a pretty output of the original, minified, gzipped size of a string or buffer: 130 B → 91 B → 53 B (gzip)

Similar to String#trim() but removes only newlines

A tiny and fast package for adding colors to your terminal output.

Convert HTML/XML source code or DOM nodes to React elements

Consume a stream of data into a binary Buffer as efficiently as possible

Base64 and base64url to string or arraybuffer, and back. Node, Deno or browser.

parses number and unit, '20px' into [20, 'px']

Returns true if the given number is odd, and is an integer that does not exceed the JavaScript MAXIMUM_SAFE_INTEGER.

Test if a value is a string.

Convert between POSIX and Windows paths.

Insert supplied variable values into a format string.

Test if a value is a regular expression string.

Iterator over lines in a string

Escape a regular expression string or pattern.

Convert a camelized/dasherized/underscored string into a humanized one: `fooBar-Baz_Faz` → `Foo bar baz faz`

Colorful animations in terminal output

Parse parentheses from a string

Get the length of unicode strings

Get a property from an object using dot (object path) notation.

A robust & character encoding–agnostic JavaScript implementation of the `Quoted-Printable` content transfer encoding as defined by RFC 2045.

Allocate a buffer containing a provided string.

Escape a string for use in AppleScript

easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.

Create a regular expression from a regular expression string.

Pad strings to a given length

Split string by any separator excluding brackets, quotes and escaped characters

slugifies even utf-8 chars!

The fast way to check if a string is blank

Contains some util methods for converting numbers into words, ordinal words and ordinal numbers.

Tagged template literal for Sanity.io GROQ-queries

Return a regular expression to parse a regular expression string.

Regular expression for matching URLs

alters a string by replacing multiple range fragments in one fast pass