Lerna is a fast, modern build system for managing and publishing multiple JavaScript/TypeScript packages from the same repository.

Browse 398 JavaScript Libraries and Tools on AlternativeTo.
Lerna is a fast, modern build system for managing and publishing multiple JavaScript/TypeScript packages from the same repository.


A multi-column layout alternative to Salvattore or Masonry, without CSS driven configuration or absolute positioning.

Respond - A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Simple one-tap strategy game where you have a virtual minefield and you must liberate it. If you play tapping randomly in the field probably your penguin will become a good petard, otherwise you and your cute penguin are probably destined to survive.

GoJS is a feature-rich JavaScript library for implementing interactive diagrams across modern browsers and platforms. GoJS makes constructing diagrams of complex Nodes, Links, and Groups easy with customizable templates and layouts.


Build your website interface using a responsive CSS framework with various components and with integrated dynamic functionalities.
Free for non-commercial purposes.



FactorialForgeAPI provides a powerful and efficient interface for calculating factorials using modern parallel computing methods and mathematical approximations.
Molasses is a suite of software tools that enables your team to deploy code more frequently. Molasses offers a set of feature flag and A/B testing tools that allows your teams to ship code more often with fewer incidents.
Adapt.js serves CSS based on screen width.
It is a lightweight JavaScript file that determines which CSS file to load before the browser renders a page. If the browser tilts or resizes, Adapt.js simply checks its width, and serves only the CSS that is needed, when it is needed. .



Koolcharts provides charting solutions with full HTML5 support. It renders data using a number of sliding effects, you can choose whichever effect you want and set an amount of time for a sliding effect.




A lightweight, translat- and configurable Open Source Date/Time Picker, written in pure vanilla JavaScript!.

A beautiful, responsive, highly customizable and accessible (WAI-ARIA) replacement for JavaScript's popup boxes. Zero dependencies.







CinemaPress ACMS - Automatic CMS, script/engine of an online cinema, movie catalog or blog about movies.



SimpleLocalize is a simple translation management solution for software projects. Simple, flexible web-based translation editor. It helps small and growing teams save time on handling localization files and translation strings.




Protect your end-users against malware, data theft and manipulation. Gartner recognized secure content delivery platform in JavaScript & GO. More than 54 Billions sessions secured and never compromised.
Geocode Earth provide quality Address Autocomplete, Reverse Geocoding & Place Geocoding solutions to small-to-medium sized businesses.
