- 内置 csrf 支持
- 提供内置工具函数模块 util
- session 支持
- 日志 logger 模块
- 添加 API: ctx.jsonp()
- 国际化
- koa.js https://github.com/koajs/koa
- express.js https://github.com/expressjs/express
- hapi.js https://github.com/hapijs/hapi
- sails.js https://github.com/balderdashy/sails
- fastify.js https://github.com/fastify/fastify
- think.js https://github.com/thinkjs/thinkjs
- nest.js https://nestjs.com/
- egg.js https://eggjs.org/