koa-multer is middleware for Koa.js, designed to handle multipart/form-data for file uploads. Built upon multer, it allows you to parse incoming requests containing files, making it simple to integrate file uploading capabilities into your Koa applications. Offering flexibility in storage options, you can save files to disk or memory, processing them as needed. koa-multer simplifies dealing with file uploads, enhancing ease of use and streamlining development workflows.