Easy Sky is an HDRI preset manager for Blender. It lets you create, organize, and swap between HDRI presets so you can switch lighting environments in your scenes without reconfiguring settings each time. Presets are added with one click using the '+' button and saved for reuse, and any preset in your list can be applied instantly to compare moods and light conditions.
Loading an HDRI is done through a 'Load HDRI' button that browses your drive and applies the selected file to your World automatically. Each setup can be fine-tuned through rotation to control light direction, strength to adjust lighting intensity, interpolation for texture quality (Cubic recommended), and color space (usually sRGB for HDRIs). The tool works with any HDRI image file.
Controls sit in a panel under Blender's World Settings and the addon is ready to use right after installation with no complex setup. Easy Sky supports Cycles and Eevee and is one of the tools published by Techqon core. A video tutorial is available for reference.