App Are Cool - 260+ Dev Tools is a free Chrome extension designed for developers, offering instant access to over 260 professional tools directly from the browser toolbar. This extensive toolkit includes specialized tools for handling various data formats like JSON, XML, and YAML, as well as essential utilities for coding and development tasks. Users can benefit from tools that beautify and minify code, validate data, and convert between formats, all while ensuring that their data remains private and secure as all processing is done client-side.

In addition to its core functionalities, the extension features a user-friendly interface that supports both dark and light modes for comfort. Quick search capabilities and access to recently used tools enhance user experience, while the absence of ads and the open-source nature of the toolset promote a clean, efficient workflow. Whether you are a web developer, software engineer, or a student, this toolkit provides an all-in-one solution for various development needs.