Sweet Home 3D Alternatives (Real Limits Compared)
Sweet Home 3D is a solid choice, but people look for alternatives because of the fine print: Completely free and open-source for personal and commercial use with no feature paywall; the only real limit is that the online and mobile versions can't import custom 3D models or export OBJ, which the desktop app handles. On top of that, dated Java interface feels clunky next to modern rivals. Strong options to compare include SketchUp, Planner 5D, and Floor Plan Creator. Below we line up the real free limits of each — what it exports, what it watermarks, and which platforms it runs on — so you switch for the right reason.
Alternatives at a glance

SketchUp
Free, with limitsSketchUp Free is free for personal, non-commercial use in the browser only; you can model and download skp/png/stl, but DWG/DXF/OBJ/PDF export, the desktop app, and extensions all require a paid plan.

Planner 5D
Free, with limitsFree to design unlimited 2D/3D projects, but about half the furniture catalog is locked, you get no proper renders, and DWG/DXF export plus custom 3D import require the Professional plan.

Floor Plan Creator
Free, with limitsThe Android free tier lets you draw unlimited projects and floors and save in-app, but any export (PNG/JPG/PDF/DXF/SVG/OBJ) needs a one-time paid unlock; the separate web free tier allows only 1 project and low-res PNG/JPG.
Switch to one of these if…
Each card leads with its pricing and free-tier reality — pick the one whose limits you can live with.

SketchUp
Free, with limitsSketchUp Free is free for personal, non-commercial use in the browser only; you can model and download skp/png/stl, but DWG/DXF/OBJ/PDF export, the desktop app, and extensions all require a paid plan.

Planner 5D
Free, with limitsFree to design unlimited 2D/3D projects, but about half the furniture catalog is locked, you get no proper renders, and DWG/DXF export plus custom 3D import require the Professional plan.

Floor Plan Creator
Free, with limitsThe Android free tier lets you draw unlimited projects and floors and save in-app, but any export (PNG/JPG/PDF/DXF/SVG/OBJ) needs a one-time paid unlock; the separate web free tier allows only 1 project and low-res PNG/JPG.