Knockout is a JavaScript library that helps you to create rich, responsive display and editor user interfaces with a clean underlying data model. Any time you have sections of UI that update dynamically (e.g.
Harp Alternatives
Harp is described as 'Production-ready web server. Rapidly build static sites and client-side applications using , and more—no configuration necessary' and is an app in the development category. There are more than 50 alternatives to Harp for a variety of platforms, including Mac, Windows, Linux, Web-based and Self-Hosted apps. The best Harp alternative is Neocities, which is both free and Open Source. Other great apps like Harp are jQuery, Codeberg Pages, Angular and GitHub Pages.
Alternatives list
- 72 KnockoutJS alternatives

Feathers is a real-time, micro-service web framework for NodeJS that gives you control over your data via RESTful resources, sockets and flexible plug-ins.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
- Node.JS
Polymer is a library that uses the latest web technologies to let you create custom HTML elements. Build anything from a button to a complete application as an encapsulated, reusable element that works across desktop and mobile.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux

- 58 Fastify alternatives
An efficient server implies a lower cost of the infrastructure, a better responsiveness under load and happy users. How can you efficiently handle the resources of your server, knowing that you are serving the highest number of requests possible, without sacrificing security...
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux
- BSD
- JavaScript
- Node.JS
Opa is an open source, simple and unified platform for writing web applications. All aspects are directly written in Opa: Frontend code, backend code, database queries and configuration. And everything is strongly statically typed.
A non-opinionated, totally customizable JavaScript framework designed for writing programs that scale across any platform.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Online
Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API.
Cost / License
- Free
- Open Source
Platforms
- Online
MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
Expressive middleware for node.js using generators via co to make web applications and APIs more enjoyable to write. Koa's middleware flow in a stack-like manner allowing you to perform actions downstream, then filter and manipulate the response upstream.




































