A free Windows app to view, measure, align, and edit STL, PLY, and OBJ files.
Courtesy of the RapidArch team.
v1.24.42 · Windows 10/11 · No account · Works offline · Free forever
Not on Windows? The Web Version runs in your browser.
Features
Open anything
Supports up to 10 STL, PLY, and OBJ meshes at once.
Measure
Point-to-point measurements, plus automatic dental arch detection with an editable curve and slicing along the arch.
Align & verify
Three-point alignment and one-click align capability.
Occlusion heatmap
Virtual articulating paper and intuitive side-by-side occlusal views.
Scanbody swap
Instantly replace a set of scanbodies with another and export. Support for hundreds of scanbodies coming soon.
Hybrid to Adapted Waxup
Turn a hybrid designed elsewhere into a watertight Adapted Waxup with every MUA seat and screw channel filled, plus the scanbody of your choice stamped at every MUA.
Combine
Fuse, subtract, or merge any two meshes into one file.
Engrave & emboss
Type a name or case ID and stamp it onto any surface.
Slice
Live cross-section pane with measurements that dynamically follow the slice as it sweeps.
Edit mesh
Lasso and pick-piece selection, cut away debris, close holes, plane cuts by gizmo or a drawn line, bridge two selected areas, and soft-warp with adjustable falloff.
Sculpt
Add, remove, smooth, flatten, and push-pull brushes with a surface-draping cursor — straight from RapidArch Web.
Scale
Uniform, per-axis, or gizmo scaling about any pivot — made for print-shrinkage compensation.
Print to DentaFab
Nest on the real DentaFab plate, auto-generate supports with presets, hand-edit pillars, add a contour raft, then save a print-ready STL or send it over Wi-Fi.
Convert formats
Save any mesh as an STL, PLY, or OBJ file.
QC report
Case notes and quality stats composed into a PDF for patient records or for your lab.
Built-in updates
Automatically checks for new versions so you never miss out on new features.

Ready For Even More?
The Biggest Deal in DigitalDentistry Has Landed
- One online platform for all your needs, from lead acquisition to final delivery.
- Save thousands with access to purchasing power normally exclusive to DSOs.
- Unlimited RapidWaxup use, 30-second AI conversions, and 2-minute AI revisions.
- Unlimited crowns with support for waxups, veneers, bridges, etc. coming soon.
- Get access to the RapidArch private community.
All for just $399/month.
$399 a month. Month to month, cancel anytime.
BONUS: Refer a friend - you both get your next month free if they sign up. Stack an unlimited amount of referrals.
Our Founding Partners
- Megagen
- SIN
- CAD-Ray
- Zubler
- anax USA
- Dentafab
- Tupel
- A. Titan
- Maxxeus
- Surgical Esthetics
- Vortex
- SegScrew
- Alien Milling
- Integrity Dental Services
- Foundation Implant Training
- ID Dentistry
Download RapidArch FS Today
Enjoy our feature-filled software with no license keys, no dongles, no trials, and no account.
v1.24.42
Not on Windows? The Web Version runs in your browser.

















