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What is Koa?

Koa aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. Through leveraging generators Koa allows you to ditch callbacks and greatly increase error-handling. Koa does not bundle any middleware.
Koa is a tool in the Microframeworks (Backend) category of a tech stack.
Koa is an open source tool with 34.4K GitHub stars and 3.3K GitHub forks. Here’s a link to Koa's open source repository on GitHub

Who uses Koa?

95 companies reportedly use Koa in their tech stacks, including Paralect, Pier, and Shimo Website.

388 developers on StackShare have stated that they use Koa.

Koa Integrations

Node.js, Sentry, PostGraphile, tsoa, and Egg.js are some of the popular tools that integrate with Koa. Here's a list of all 7 tools that integrate with Koa.
Pros of Koa

Koa's Features

  • Provides 3 different kinds of functions as middleware
  • common function
  • async function
  • generator function

Koa Alternatives & Comparisons

What are some alternatives to Koa?
Fastify is a web framework highly focused on speed and low overhead. It is inspired from Hapi and Express and as far as we know, it is one of the fastest web frameworks in town. Use Fastify can increase your throughput up to 100%.
hapi is a simple to use configuration-centric framework with built-in support for input validation, caching, authentication, and other essential facilities for building web applications and services.
Express is a minimal and flexible node.js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications.
Flask is intended for getting started very quickly and was developed with best intentions in mind.
Django REST framework
It is a powerful and flexible toolkit that makes it easy to build Web APIs.
See all alternatives

Koa's Followers
473 developers follow Koa to keep up with related blogs and decisions.