I-Mesh, also called Image Mesh, is a Blender add-on from Luwizart that turns a 2D image into a 3D object. It generates depth information from the 2D image and builds geometry from that data. A set of procedural parameters exposes several attributes you can adjust to reach the result you want.
The add-on generates a 3D object from a selected image and supports images that carry alpha channels. Cleaning up UVs and generating textures is handled in one click, so those steps happen together as part of building the object.
The 3.3 update moved I-Mesh offline, removing the internet requirement to run it, and introduced a new and improved interface. It's distributed under a Creative Commons license and lists support for Blender 3.2, 3.3 and 3.4. A demo video is available for a closer look.