Free software that can be used to open Photoshop PSD files in Windows and also convert to other file extensions like JPEG.

Photopea is a web tool that lets you create, open, edit Photoshop & GIMP image files using its free online photo editor, using Filters & other features.

A new JavaScript-based platform provides code-level access to individual layers in a PSD file. Plus, some stability improvements and tool enhancements for Photoshop CC.