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

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