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koa2

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Koa is a new web framework designed by the team behind Express,

which aims to be a smaller, more expressive, and more robust foundation

for web applications and APIs. By leveraging async functions, Koa allows you

to ditch callbacks and greatly increase error-handling. Koa does not bundle any

middleware within its core, and it provides an elegant suite of methods that make

writing servers fast and enjoyable.

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A highly extensible Markdown editor featuring version control, AI Copilot, document annotations, mind maps, document encryption, executable code snippets, chart embedding, HTML applets, plugins, and macro replacement. Its integrated sidebar terminal makes working with AI faster and more convenient.

  • Updated Sep 18, 2026
  • TypeScript

Created by TJ Holowaychuk

Released December 19, 2013

Latest release 4 months ago

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5.9k followers
Repository
koajs/koa
Website
github.com/topics/koa