What is How do I convert a texture 3D model without Photoshop?

You can convert a textured 3D model without Photoshop by using specialized 3D software (e.g., Blender) or open-source/image tools (GIMP, Photopea) that handle texture mapping and conversion. Blender (free) has a Texture Paint mode to edit textures directly on the model, ideal for full 3D workflows. GIMP modifies texture files (like PNG/JPG) that integrate with 3D modelers. Photopea is a browser-based tool for basic conversions without desktop software. For beginners, Blender offers complete texture and model control (with free tutorials), while GIMP is simpler for quick texture edits.