Many utility sites are cluttered with aggressive pop-up ads that slow down the user experience. Jyagit.com maintains a relatively clean interface. The learning curve is virtually non-existent; you land on the page, select your tool, and get to work.
Furthermore, the processing speed is impressive. Because it leverages modern web technologies (often client-side processing for simple text tools), results are often instantaneous.
Understanding Jyagit.com: Safety Analysis and Security Risks