Strengths
- One click from PCBWay's instant quote, so the preview and the order live in one place.
- Credits the author of tracespace, whose open-source libraries render Gerbers in the browser.
- PCBWay offers an online 3D viewer next to it.
What it can't do
- PCBWay says the viewer is "just for reference with some features still being improved".
- A preview is not the manufacturer's engineering review: problems can still come back after you order.
- No design source files.
- Where files go and how long they are kept isn't stated on the page. Check PCBWay's privacy policy.
VerdictFine as a preview on the way to a PCBWay order; for checking your files, use Ucamco's Reference Gerber Viewer or tracespace view.
PCBWay Online Gerber Viewer against each criterion, with sources →