Validates and sanitizes user input using a strongly typed fluent API (TypeScript).
beautifier.io for node
A basic field / form manager for React using hooks
Node.js port of tinytim (A tiny, secure JavaScript micro-templating script)
Rich matchers inspired by Hamcrest. Useful for generating helpful assertion failure messages in tests.
Transpile JavaScript/TypeScript code with swc.
A utility for upgrading your codebase to the latest version of Flow.
A simple temp file based swap for speeding up operations
HTML to DOM parser.

Cucumber Tag Expression parser
A tool for rapidly building command line apps
Nexus plugin to validate and transform graphql arguments
Safer version of eval()
JSON schema generator with a possibility to merge schemas
Batch module loader, require() for directories
A JavaScript object inheritance utility.
Ceibo is a JavaScript micro library to model trees that evaluate arbitrary code when accessing its nodes.
light weight query batcher for graphql
Online demo at http://syssgx.github.com/xml.js/
A JavaScript ES6 library for common fields validators
Expand CSS shorthand properties
EZ4: Validate data according to a given schema
Disallow English text in string literals