New here? Start with this
HideUpload a photo of your part
A die bore, a wire end, a tube, any round feature. A clear, well-lit, straight-on photo works best. You can drop several at once.
Set the scale — or skip it for now
Scale tells the tool how big one pixel is in real life. If you don't know it, leave it at 1 and results come back in pixels. Use Calibrate once you have something of known size in the photo.
Draw a box around the circle
Drag a box around just the round feature. Or press Suggest area and the tool finds it for you. This is the step people skip — the engine will not guess which circle you mean.
Press Run measurement
You get diameter, ovality, roundness and a confidence score. Hover the small ? next to any setting to learn what it does.
Drop images or click
JPG, PNG or TIFF · multiple allowed
Without calibration, results are reported in pixels. Calibrate once against a scale bar for true micron values.
Fill this in only if you want an automatic pass / watch / reject verdict. Leave it blank and you still get every measured number.
Watch fires at 80% of the limit, so you see drift before it becomes scrap.
Step 1 — upload a photo. Drag one onto the box on the left, or click it. Then come back here, drag a box around the round feature, and press Run measurement. Never used this before? Open the green guide at the top.
Working
Turns the numbers into plain words: which wear pattern this looks like and what to do. Needs your own AI key — the measurement itself works without it.