Image tools that respect your files.

ImageHelperKit is a growing collection of browser-based image utilities. Each tool is built to do one job clearly rather than imitate a full editor. It started with an image measurement toolfor estimating real-world dimensions from a calibrated photo, followed by an angle measurerfor estimating the angle between two lines in a photo or on a blank canvas. The image colour inverter makes negatives from photos and graphics, including batches of images.

Every tool here runs client-side, using modern browser APIs to process the photo on your own device. There's no server in the loop, no install, and no account — open the tool, do the one thing you came to do, and get your result immediately.

ImageHelperKit is built and managed by Berjin B V, a mechanical engineering graduate (R.M.K Engineering College) turned web and app developer, with support from two UI developers. The team maintains the tools, tests changes, and reviews feedback from people using them.