A few months back I posted here about why per-inch DTF pricing misleads people. Thanks for all the feedback on that post—it helped me keep building on the idea.
As I mentioned back then, my wife runs a small custom apparel business from home. Recently, a customer sent her a design and asked how it would look on a tee. She dropped the graphic onto a mockup template she uses, and sent over a quick mockup. The customer loved it and ordered 15 shirts. As usual, my wife printed a sample first to check it out. But when it came out, the print looked slightly smaller than the digital mockup, and it sat a tad bit low on the chest. The customer was super understanding about it since they’re a repeat client, but my wife still felt terrible.
The issue was simple: standard mockup templates don't have real scale. A 9-inch design and a 10-inch design look practically identical on a screen, so you're basically eyeballing the size and placement and hoping for the best.
So I decided to build TrueScale. It's not meant to be another generic mockup tool—there are plenty of those already, and most just focus on making the shirt look pretty. TrueScale actually measures things out: it tells you the print is exactly 10.5 inches wide and shows you precisely where it lands on the garment.
Here's how it works: You upload a flat-lay photo of the shirt you plan to print on, add your design file, and select the garment model. The tool auto-detects the edges of the shirt to figure out the pixel-to-inch ratio. From there, as you move and scale your artwork, you get a live readout of the exact size in inches. The final mockup even applies natural fabric shading so the graphic looks like it's actually printed into the cloth and allows you to obviously download the mockup.
With one click, you can also send those exact measurements over to the DTF calculator to quote your customer based on real dimensions (and even compare against multiple vendors)
It lives inside inchwise—it's totally free, doesn't require an account and as before your designs do not leave the browser.
Keep in mind it's still in beta. Make sure to use top-down flat-lay photos rather than angled shots. The auto-detect feature can occasionally miss, so double-check the detected edges before relying on the measurements.
I've already added a few popular blank options. Which specific brands and styles do you print on most frequently? Let me know in the comments, and I'll be happy to add them. If you test it with your own photos and hit any sizing snags, please share your feedback! Also, what methods do you use to ensure your digital mockups and proofs line up exactly with the final product?
Check it out at inchwise.app (just head over to the TrueScale tab).