Terms & Conditions
Last updated: September 16, 2026
Use of the service
STL Viewer Online provides free, browser-based tools for viewing, measuring, repairing and converting 3D files such as STL, OBJ, GLB, 3MF and PLY. By using the site you agree to these terms. You may use the tools for personal and commercial purposes. You may not attempt to disrupt the site, scrape it at scale, or use it for unlawful purposes.
Your files
Files are processed in your browser and are not transmitted to us. You are responsible for the files you open and for keeping copies; the tools never modify your original files, and repaired or converted files exist only once you download them. You are responsible for holding the rights to any model you open, repair or convert.
No warranty
The tools are provided "as is" without warranties of any kind. We do our best to parse, measure, repair and convert files correctly, but mesh files vary, measurements and cost estimates depend on assumptions stated on each page, and we cannot guarantee that every file will be handled perfectly or that a model reported as printable will print. Always check the output in your slicer before relying on it.
Limitation of liability
To the fullest extent permitted by law, STL Viewer Online and its operators are not liable for any loss or damage arising from use of the site, including data loss, incorrect conversions or measurements, failed prints or wasted material.
Third-party services
Advertising and analytics are provided by third parties under their own terms. Links to other websites are provided for convenience; we are not responsible for their content.
Changes
We may change these terms or the tools at any time. Continued use after changes means you accept the updated terms.