Maker Growth Hub

Free maker tool

UV Print Checker

A print file fails differently to a cut file, and the failures are invisible until the roll is already running.

Nothing is uploaded. It runs in your browser, so your files never leave your machine — and it stays free.

Part of the Maker Toolkit: fourteen tools that share one shop profile and one product list, so what you set up here is already known everywhere else.

Maker Toolkit v1.0 · August 2026

How it works

UV Print Checker, step by step

It reads your artwork the way a UV printer will. Real resolution at the size it actually prints — not in pixels. Whether the background is genuinely transparent or a white rectangle somebody flattened. How clean the white underbase will be. What detail is finer than the process can lay down. You get a score out of 100 and a fix list in plain English.

  1. Drop your artworkPNG, JPEG, WebP or SVG. It is read in your browser and never uploaded.
  2. Set the printed sizeThis is the whole game. The same file is fine at two inches and unusable at ten.
  3. Look at the white underbaseThe second view is the white ink itself. Grey means partial coverage, which is where halos come from.
  4. Fix, then gang it upSend it straight to the Gang Sheet Builder at the size you just checked.

Why it is built this way

The decisions behind it

Resolution at print size, not in pixelsA 4000 px file is glorious at three inches and thin at fifteen. Pixels alone tell you nothing — the number that matters is dots per inch at the size on the roll.
Catches the white rectangleThe most expensive UV DTF mistake is artwork flattened onto white. It looks like nothing on a white screen and prints as a white box around your design. This spots it before the roll does.
Honest about what it is notIt does not estimate ink, and the colour warning is a heuristic about where four-colour process is weakest. Only your printer profile and RIP know the real shift, and pretending otherwise would cost you material.

Questions

UV Print Checker — common questions

What resolution do I need for UV DTF printing?

Work back from the printed size, not the pixel count. 300 dpi at the size it will actually print is the working target: a decal printing at 4 in wide wants around 1200 px across. A 1200 px file printing at 10 in is 120 dpi and will look soft no matter how large the number sounded.

Why does my UV print look different to the file on screen?

Usually colour mode. Screens are RGB and additive, ink is subtractive, and saturated RGB blues, greens and oranges sit outside what the printer can physically mix. This tool flags colours at risk rather than showing you a fake proof, because an accurate proof needs your printer profile and a calibrated screen.

Why did fine detail vanish from my print?

Strokes and gaps below roughly 0.02 in tend not to survive the transfer, and thin light-on-dark detail goes first. The checker erodes your artwork to find the parts that fall below that threshold, so you can thicken them before printing rather than after.

Does it estimate ink cost?

Deliberately not. Ink use depends on your printer, profile, white underbase settings and pass count, none of which a browser can see. A confident number here would be a made-up one, so it reports coverage instead and leaves the costing to the pricing calculator.

Next in the workflow

What most makers open after this

These are not a list of everything. They are the tools this one hands off to, and they already know what you did here.

FreeGang Sheet BuilderPack a UV roll into the shortest length you can, then see what one decal really costs.FreeFile CheckerFind the problems that waste a sheet, before you load one.FreeProduct PricingPrice it so you actually get paid.

Free, and staying free

This one costs nothing. No account, no limits, no watermark.

Ten of the fourteen tools are free for good. If you want the generators that design the product, and the planner that tells you whether the batch fits your week, that is what the Hub is for.

See what the Hub adds