STEP file viewer for Mac, free in your browser
Open a STEP or STP file on your Mac and turn it around in 3D, with nothing to download or install. It runs in your browser, it's free, there's no account to make, and the file is never uploaded.
Nothing to install
- It's built to run in Safari, Chrome and Firefox. We test it in the engines they use: WebKit (Safari's), Gecko (Firefox's) and Chromium.
- No app, no plug-in and no admin rights, so it works on a Mac you can't install software on.
- Choose the file, or drag it from Finder onto the studio.
What you can do with it
- Orbit, pan and zoom, or jump to the front, top, right or isometric view.
- Browse the assembly tree, find parts by name, and hide parts to see inside.
- Open STEP (.step, .stp), IGES (.iges, .igs) and BREP (.brep) files.
What else your STEP file can become
Viewing is the start. The same file makes exact drawings, parts pages and assembly manuals. These are from the example manual.
A parts page: exploded view, 16 balloons and the parts list, placed for you.
An assembly manual: 11 steps on 5 pages, worked out from the explosion.- Free, in the studio. Exact hidden-line drawings and exploded views of up to 250 parts, as SVG, DXF, PDF or PNG, with no account.
- Pro, £49 a month per editor. Balloons and parts lists, step-by-step assembly manuals as PDF, your own title block and logo, and drawings that follow the CAD when it changes. Just one job? Project pass: Pro for 30 days, £79 once, with nothing to cancel.
- Or we draw it for you, from £150. Send the STEP file and we draw one view free first, so you can judge it before you pay anything. Drawings done for you.
Your file stays on your Mac
The viewer reads the file in your browser, with the Open CASCADE geometry kernel compiled to WebAssembly. It isn't sent to us or to anyone else. Security and your files says exactly what is and isn't sent.
Free, with no account
Viewing needs no sign-up. The free plan keeps one file in your browser at a time. The same file can also become an exact hidden-line drawing or an exploded view, exported as SVG, DXF, PDF or PNG, free for up to 250 parts.