Skip to main content
Support

Browse by category

All categories

Open STEP, STL, DXF, and Gerber files in your browser

Inspect a part in the STEP Viewer, which finds holes, wall thickness, and mass on its own, or review a PCB fab archive in the Gerber Viewer. Read a 2D drawing in the DXF Viewer, check a model before printing in the STL Viewer, and repair a broken mesh with the Mesh Fixer.

Your files never leave your device.
How it works

All CAD & 3D

9 of 9
Featured

STEP Viewer

Open a STEP / STP part and it measures itself — volume, thinnest wall, draft and undercut checks on load, plus hole detection with a BOM. Measure, section, export STL. Rust + WASM B-rep kernel, runs in your browser.

Featured

Gerber Viewer

Open Gerber, Excellon, ODB++ and IPC-2581 PCB files. Inspect layers, measure traces, run DRC, export to PNG / SVG / DXF.

Featured

DXF Viewer

Open .dxf drawings in your browser. Layers, text, dimensions, hatches, blocks and paper-space layouts, with distance measuring and SVG, PNG or PDF export.

STL Viewer

Open a binary or ASCII STL — including one straight out of a 3D generator — and see whether it can actually be made. Minimum wall, undercuts, draft and a print or machining estimate, read from the mesh itself. Orbit, measure, section, PNG export.

3MF Viewer

Open .3mf files with their print settings and material slots, and see whether the part can be made. Minimum wall, undercuts, draft and a cost estimate from the mesh. Orbit, measure, section, PNG export.

GLB / glTF Viewer

Open .glb and .gltf assets — including generated ones — inspect PBR materials, and check the geometry for minimum wall, undercuts and draft if you plan to make it. Draco-compressed GLBs supported. Orbit, measure, PNG export.

Mesh Fixer

Repair broken meshes to watertight, boolean-combine two meshes, and rebuild a mesh from a point cloud — all in your browser, nothing uploaded.

OBJ Viewer

Open Wavefront .obj files and check the geometry before committing to it. Minimum wall, undercuts, draft and a cost estimate, read from the mesh itself. Orbit, pan, zoom, point-to-point measure, PNG export.

PLY Viewer

Open Stanford PLY scans and meshes, binary or ASCII, and check them before making anything. Minimum wall, undercuts, draft and a cost estimate from the mesh. Orbit, pan, zoom, measure, PNG export.

About these CAD and 3D tools

View, measure, and repair CAD and 3D files in your browser. Drop a STEP or DXF from an engineering handoff, an STL before a 3D print, an OBJ, PLY, or GLB from a scan or game pipeline, a 3MF from your slicer, or a Gerber fab archive for a PCB, and open it without installing the native software. The STEP Viewer tessellates the real part geometry with a CAD kernel compiled to WebAssembly, then finds holes, measures wall thickness, and computes mass. The mesh viewers read minimum wall, undercuts, and draft straight from the mesh, and the Mesh Fixer repairs the problems that break prints: holes, flipped normals, and non-manifold edges. Each viewer loads its engine with the first file you drop, so the rest of the site stays fast, and every file stays on your device: CAD models, board layouts, and scan data are exactly the files that should not sit on a stranger's server. Viewing is read-only by design (pan, zoom, orbit, measure, inspect, export), and real editing stays in the native tools.

Frequently Asked Questions

What file types can I open?

Today: STEP (.step/.stp), STL, OBJ, PLY, GLB/glTF, 3MF, DXF, and Gerber/Excellon fab archives. The Mesh Fixer also repairs common mesh formats before 3D printing. New formats land as their parsers stabilise.

Can I edit files with these tools?

Viewing is read-only by design — pan, zoom, orbit, measure, inspect, and export. The exception is the Mesh Fixer, which repairs meshes (fills holes, fixes flipped normals and non-manifold edges) so they print cleanly. Real editing belongs in the native software.

Why a separate category instead of grouping under PDF or Image?

These formats normally require the native application just to look at a file. The point of this category is opening them in a browser tab — no install, no account, and the file never leaves your device. Filing them under generic image utilities would bury that.