senanto/color-picker

Color Picker is a small browser based tool for pulling color values out of any image. According to its README, a user can upload an image by dragging it in, choosing a file, pasting with Ctrl+V, or entering an image URL, and the page will show that image so colors can be sampled from it. Once an image is loaded, hovering over it brings up a magnifier that zooms into the pixels under the cursor with a crosshair, making it easier to land on an exact pixel. Clicking a spot reads that pixel's color and shows it in four formats at once: HEX, RGB, HSV, and CMYK. Picked colors can be saved to build up a palette while working, and any single color value can be copied to the clipboard with one click. The README describes the tool as privacy first, saying all of the image processing happens directly in the browser and nothing is uploaded to a server. To use it, the instructions are simply to open the project's index.html file in any browser, load an image, and start picking colors with the magnifier. There is also a link to a hosted version of the tool that can be tried without downloading anything. The project is released under the MIT license, which allows the code to be used, copied, and modified freely, including for commercial purposes, as long as the original copyright notice is kept. The README is short and does not mention a build process, dependencies, or any backend, which fits with the tool being a single browser based page rather than a larger application.