jimp-dev/jimp

Jimp is an image processing library for Node.js, with a name that stands for JavaScript Image Manipulation Program. Its main selling point, as stated in the README, is that it is written entirely in JavaScript and has zero native dependencies. Most Node image libraries call out to compiled C or C++ code, which can break across platforms and require build tools at install time. Jimp avoids that by doing everything in JavaScript, so a plain npm install is enough to get it working. The repository description adds that the library has no external dependencies either, beyond the JavaScript packages it pulls in. The repo is set up as a monorepo, with packages living under a packages directory. The README points to one of those packages called @jimp/custom for users who want a customized build of Jimp. The README explains two ways to use that custom package. You can add or remove file types, which means switching the encoders and decoders that handle formats like PNG or JPEG. You can also add or remove plugins, which in Jimp's language are the methods that actually manipulate images, such as resizing, cropping, or applying filters. By trimming down to just the formats and operations you need, you can keep your bundle smaller, which matters in serverless or browser-adjacent settings. Beyond that, the README itself is short on detail about the API. It does not include a usage example or list the built-in operations. The reader is pointed at a separate CONTRIBUTING.md for anyone who wants to submit code changes, and at the @jimp/custom package for the extension story. For day-to-day usage details you would need to look at the package documentation or the source under the packages directory. The rest of the README is taken up by a large contributors table generated by the all-contributors tool. It lists dozens of people who have helped with code, documentation, infrastructure, and tests, alongside avatars and links to their GitHub profiles. The maintenance has clearly passed through many hands over time.