How to Use STEPFILE.com

1Open a file

There are three ways in:

• Drag and drop. Drag a file from your computer straight onto the page.
• Upload a file. Click Upload a file and pick it from your device.
• Open a saved file. If you have an account, click Open a saved file to pull up a model you saved earlier.

It reads STEP, STP, IGES, IGS, STL, OBJ, glTF, and GLB as 3D models, and DXF as a flat 2D drawing. Not sure what your file is? See the file formats guide.

2Move around the model

• Rotate: click and drag (one finger on a touchscreen).
• Zoom: scroll the wheel, or pinch on touch.
• Pan: right-click drag, or two fingers.
• Snap to a view: use the orientation cube in the corner to jump to top, front, or side.

There’s a fullscreen button if you want the model to fill your screen, which helps a lot on a phone.

3Measure something

Tap the ruler icon, then tap two points on the model to get the distance between them. The viewer snaps to corners and edges so you can grab exact points instead of guessing. You can switch between inches and millimeters with the units toggle, and keep multiple measurements on screen at once.

4Save a model to your account

Create a free account and you can save a model so it’s there when you come back. Saving keeps the model along with your measurements and notes, so you pick up right where you left off. You can organize saved models into folders, star the ones you use most, and rename or move them anytime from your account page.

5Add notes to the model

Notes let you pin a comment to an exact spot on the part, the way you’d call out a detail on a drawing.

• Click the note button to turn note mode on. It stays on, like the ruler.
• Click a spot on the model. A note box pops open and you type what you want.
• The box is anchored to that point but floats freely, so you can drag it out of the way and a line keeps it linked to the spot it’s about.
• Add as many as you like. Click the note button again to turn note mode off.
• Each note has a close (X) that collapses it to a small numbered pin. Tap the pin to reopen it. The eye button collapses or shows all of them at once.

Notes save with the model, so they’re there when you reopen it, and they travel with a shared link. That means you can send someone a marked-up model, and they can spin it around and click each pin to read what’s going on.

6Share a model

Click Share to create a link to the model. Send that link to anyone and they can open the model in their browser, no account needed, and see your notes right along with it. It’s the fastest way to get a part in front of a coworker, a customer, or your shop floor.

Shared links are set to expire after a while on the free plan. If you want links that stick around longer and stay reshareable, that’s what a paid plan is for.

7Attach drawings and documents

A model is often only half the story. The drawings, build instructions, and photos matter just as much. So you can bundle them with the model.

• Open a saved model and click the documents button.
• Attach PDFs (drawings, instructions), images (JPG, PNG, and the like), or extra CAD files such as DXF.
• PDFs and images open right in the browser. A DXF attachment opens in the viewer as a drawing.
• The whole bundle travels with a shared link, so whoever you send it to sees the model and every document that goes with it.

This is built for the shop-floor case: an engineer saves the model with its drawings, shares one link, and everyone who needs it can view the part and the paperwork together without an account or a license.