JavaScript has been around for 23 years, and it’s one of those languages that never stop evolving. JavaScript libraries and frameworks are incredibly valuable tools for any front-end developers to be familiar with as they can add great functionality to your website or help you create current web design trends, resulting in exceptional experiences for your users.

Nevertheless, it’s important to be ahead of the game by working with the latest libraries and frameworks for a better development workflow.

1. Mocha

Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases.

2. Ember.js

Ember is a JavaScript front-end framework designed to help you build websites with rich and complex user interactions. It does so by providing developers both with many features that are essential to manage complexity in modern web applications, as well as an integrated development toolkit that enables rapid iteration.

3. React

React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.

4. Angular

Angular is a platform that makes it easy to build applications with the web. Angular combines declarative templates, dependency injection, end to end tooling, and integrated best practices to solve development challenges. Angular empowers developers to build applications that live on the web, mobile, or the desktop.

5. Vue.js

Vue is a progressive framework for building user interfaces. Vue is designed from the ground up to be incrementally adoptable.

The core library is focused on the view layer only, and is easy to pick up and integrate with other libraries or existing projects. Vue is also perfectly capable of powering sophisticated Single-Page Applications when used in combination with modern tooling and supporting libraries.

6. Meteor

Meteor is a full-stack JavaScript platform for developing modern web and mobile applications. Meteor includes a key set of technologies for building connected-client reactive applications, a build tool, and a curated set of packages from the Node.js and general JavaScript community.

7. Stencil

Stencil is a compiler that generates Web Components (more specifically, Custom Elements). Stencil combines the best concepts of the most popular frameworks into a simple build-time tool.

8. TypeScript

TypeScript is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript.

9. Algolia Places

Algolia Places is a JavaScript library that will help you autocomplete forms and it specialises in addresses. You can even add a map to the search and display the location, which is incredibly useful. It’s accurate and super fast, which will definitely increase the user experience on your site.

10. Chart.js

Chart.js is a JavaScript library for designers and developers to add wonderful charts to a website. It offers lots of different types of charts plus the ability to mix them in a single space to provide a really interesting data set. It also has some animation capabilities

11. Premonish

Premonish is a JavaScript library that predicts what element a user will interact with next, based on mouse movement. This allows for some exciting animation triggers, and can help your CTAs stand out!

12. Slick

Slick is here to solve all of your carousel needs. It’s fully responsive, has tons of options, works with swipe gestures for mobile devices and much more. You can even sync two different carousels if you want to create a stacked effect.

13. Aurelia

Aurelia is a modern, front-end JavaScript framework for building browser, mobile, and desktop applications. It focuses on aligning closely with web platform specifications, using convention over configuration, and having minimal framework intrusion. Basically, you just write your code without the framework getting in your way.

14. Shave

Shave is a zero dependency JavaScript plugin that truncates multi-line text to fit within an html element based on a set max-height. It then stores the diff of the original text string in a hidden <span> element following the visible text. This means the original text remains intact!

15. Sal

A tiny vanilla JavaScript library for creating scroll animations. Sal is based on the Observer API, which allows it to be super performant and not rely on any external dependencies. It is extremely lightweight (less than 2.8 kb), easy-to-use, and supports a number of animations like fade, slide, zoom and flip.

16. Spacetime

A tiny JavaScript timezone library that allows you to handle time, dates and timezones with almost no effort. You can create, add, subtract and compare dates, and change their timezone and format. What is more, the library supports methods that give you information about Daylight Savings, hemispheres, seasons, leap-years and more.

17. Sqorn

Sqorn is a JavaScript library for building SQL queries. It allows you to build complex queries and chain, extend and embed them to create more complex ones. It provides concise syntax for common CRUD operations and is extremely fast. It generates parameterised queries for preventing SQL injection.

18. Howler.js

howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio. This makes working with audio in JavaScript easy and reliable across all platforms.

19. SweetAlert 2

SweetAlert 2 is a library for creating beautiful and responsive popup boxes. They are highly customisable, 100% responsive and look great on all screen sizes. With this library you can create a wide variety of different popup boxes with amazing styles, effects and animations.

20. Tween.js

The TweenJS Javascript library provides a simple but powerful tweening interface. It supports tweening of both numeric object properties & CSS style properties, and allows you to chain tweens and actions together to create complex sequences.