Open Source Software for JavaScript
knex.js
Knex.js is a free and open-source JavaScript query builder for relational databases. The query builder supports Postgres, MSSQL, MySQL, MariaDB, SQLite3, Oracle, and Amazon Redshift and is designed for easy-of-use and portability. Knex.js can be used with both callbacks and promises and supports transactions and connection pooling while providing async flow control, a stream interface, fully featured query and schema builders.
Storybook
Storybook is an open source tool for developing UI components in isolation for React, Vue, Angular, and more. It makes building stunning UIs organized and efficient.
Mandarine.TS
Mandarine.TS is a free and open-source minimalist, decorator-driven, MVC framework for Deno. Mandarine consists of four different core modules, Core, Security, Data & MVC which brings a compact, SOLID oriented solution for complex applications. All Mandarine projects are released under the MIT License and its growth is dependant on the members in the community.
Underscore.js
Underscore.js is a free and open-source JavaScript library that provides over 100 functional programming helpers without extending any built-in objects. Underscore.js can be used for function binding, javascript templating, creating quick indexes, deep equality testing, and much more.
Webiny
Webiny is a free and open-source static site generator and headless CMS written in JavaScript.
Pug.js
Pug or Pug.js is a free and open-source, high-performance template engine for Node.js. The library is heavily influenced by Haml and share many of the same concepts, while being a JavaScript implementation.
Vest
Vest is a free and open-source validations library for JavaScript applications. The library share many similarities with other testing framework such as Mocha and Jest. It is to write validation testing with Vest as it includes already common declarative patterns. The library can handle validation upon user interaction and user input.
nest.land
A blockchain-based package registry for Deno. nest.land combines Deno with the Arweave Blockchain to create a decentralized package registry for Deno. With nest.land developers can publish immutable Deno packages that can never be deleted and easily used for any Deno-powered software project.
RequireJS
RequireJS is a free and open-source JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Node.js and Rhino.
dORM
dORM is a lightweight SQL query builder for Deno and PostgreSQL and is currently being expanded into a full-fledged object-relational mapping (ORM) tool. Its purpose is to make your life easier when making SQL queries and let you write queries in familiar Javascript/Typescript syntax and dot notation.