Batch resize one thumbnail across 7 platform formats, check whether your text will actually be readable at small size before you publish, and preview it as merch — all in one place, instead of juggling separate tools.
Start Your Free 3-Day TrialOne source image, resized for every platform you need.
Live contrast checker flags text that'll wash out at small size, before you publish.
See the same design mocked up across 9 merch product types.
One upload, resized correctly for every platform at once.
Real contrast math, not a guess — flags text that won't read at thumbnail size.
See your design on real product types before committing to print.
Text that looks fine at full size often disappears at thumbnail size. The contrast checker measures the actual contrast ratio between your text and its background — not a guess, real math — so you catch it before publishing, not after watching click-through rates drop.
It also checks safe zones. A focus point sitting under YouTube's duration badge or a Shorts UI overlay gets flagged too, so your subject doesn't end up covered by an element you can't control.
Start with a free 3-day trial — £9/month after, cancel anytime.
Start Your Free Trial