Thank you for your interest in our services.
Options reported to be missing will be added back to Pretty STL Viewer early 2026.
Reason they were not: we did not migrate them yet (costly) + we thought they were not necessary.
When the Free STL Viewer is discontinued, we plan to add a desktop version of it accessible retroactively to all supporters/customers for legacy purposes (but without support).
The online version of Pretty STL Viewer is limited but free for now, we plan to keep it this way as long as supporters or other incomes can pay for it.
Maintenance of such a tool is more expensive than it may seem, and we need regular support if we want to be able to improve and maintain it.
We are considering the release of a lite version, limited to original options and for non-commercial use only. Let us know what cost would be acceptable for a casual user like you (you can email us at contact@pretty-stl-viewer.com)