FlowToolkit

FlowToolkit is a free, browser-based toolbox with a focus on speed and privacy. It includes tools like CSV Splitter, JSON Formatter, unit converters, BMI Calculator, Sitemap Generator, Robots.txt Generator, and image resize tools. The tools run locally in your browser, so files are not uploaded to a server. The site is designed to be lightweight, with no sign-up and no tracking on the tool surface. It’s built for developers and anyone who wants quick utility tools without extra setup.