Free software application for watermarking STL files

Free software application for watermarking STL files

Integrate hidden information into your STL files without causing any structural changes or leaving visual marks. Secure the intellectual property of your 3D models and protect them from theft.

Get Started for FREE How it Works

Robust protection

Watermark is almost impossible to detect or change.

Free to use

Watermark 10 STL files per day for FREE

Easy to use

Upload STL file and watermark in a few clicks

Upload STL file
All STL files are supported (binary and ASCII). Please note that color extensions are not supported.
Enter watermark information
This information will be placed inside the watermark. Please try to keep it as succinct as possible. ASCII characters and symbols recommended.
Enter watermark password
If you want the contents of your watermark to remain private, please create a password. You may leave the password field empty if you want the contents of your watermark to be made public to all users.
Even without a password the watermark cannot be changed or overwritten once it’s applied.
Enter your email
The download link for your first watermarked file will be sent to this email. All subsequent downloads will occur directly.
Can prevent certain attacks to the watermark but will cause some minor changes that are practically invisible to the form of the 3D model.
Receive information about updates of our products.
Accept the terms
Please read our Terms of Service. Keep in mind that the free service is limited to 10 watermarks per day. If you need more, feel free to contact us for a subscription.
Upload STL file
All STL files are supported (binary and ASCII). You may convert mesh from other formats into STL.
To view the contents of a private watermark, the correct password is required. If the watermark was made public to all users, you may leave the password field empty.
Accept the terms
Please read our Terms of Service.

How it Works

1Upload file

Click “Upload STL” and select an STL file.

2Embed data

Enter watermark information, create a password and provide your email address.

3Apply watermark

Your file is now protected with a unique watermark which only you can access.

About Watermark

Simply stated, Watermark 3D is a unique system for embedding hidden information into an STL file without any structural changes or visual marks. The watermark can only be detected if the STL file is uploaded to Watermark 3D and with the correct password. Compare it with traditional watermarks on bank notes where the identifying patterns are only visible when the note is held against a light. As for 3D models, our watermarks are near impossible to detect or duplicate.