samchon / typia

Super-fast/easy runtime validators and serializers via transformation

javascript-obfuscator / javascript-obfuscator

A powerful obfuscator for JavaScript and Node.js

47ng / nuqs

Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

pillarjs / path-to-regexp

Turn a path string such as `/user/:name` into a regular expression

Rich-Harris / magic-string

Manipulate strings like a wizard

balazsbotond / urlcat

A URL builder library for JavaScript.

fent / randexp.js

Create random strings that match a given regular expression.

puppeteer / replay

Library that provides an API to replay and stringify recordings created using Chrome DevTools Recorder

omrilotan / isbot

🤖/👨‍🦰 Detect bots/crawlers/spiders using the user agent string

lxsmnsyc / seroval

Stringify JS values

pveyes / htmr

Simple and lightweight (< 2kB) HTML string to React element conversion library

algolia / react-element-to-jsx-string

Turn a ReactElement into the corresponding JSX string

unjs / scule

🧵 String Case Utils

Zagorodnyi / filter-ast

Parses a declarative filter object with $op(value) strings into a typed, database-agnostic filter AST. Zero dependencies, ~50 ns per call.

agentscope-ai-java / json-guard

JSON.parse with hard limits on nesting depth, key count, string length and input size. Refuses parser bombs before they are allocated.