Upload a design and inkPreflight measures the thinnest line, tightest gap, black-fill density and merge risk at the real tattoo size - then flags what will blur, blow out or merge once healed. Export a 1:1 stencil.
Free to start - 5 analyses/month, no card required.
Four steps, about a minute.
PNG, JPG, WEBP, SVG or PDF line-art. Nothing is shared - files auto-delete within hours.
Enter the width it will be tattooed at (mm). Everything is measured at that true scale, not on-screen pixels.
Sub-pixel line-width, spacing, black density and merge-risk maps computed with a calibrated CV engine.
Flagged thin lines and merge zones, an artist and a client PDF, and a 1:1 real-size stencil (plus mirrored).
The numbers that decide if a design survives on skin.
The thinnest stroke in millimetres. Lines below the safe threshold for your style blur or drop out as they heal.
The tightest gap between lines. Too tight and ink spreads until separate lines read as one solid mass.
How much solid black sits in each area - the driver of trauma, patchiness and long sessions.
Where nearby ink is likely to spread and touch after healing, shown as an overlay you can grow by 0.1-0.3 mm.
The smallest size at which the whole design still respects safe thresholds.
Blowouts, blurred fine lines and filled-in gaps are the most common ways a clean design fails on skin - and they are geometry problems you can catch before the needle, not after. inkPreflight turns 'this looks a bit thin' into an exact millimetre reading, so you can resize, respace or warn the client with evidence instead of a guess. Fewer touch-ups, clearer expectations, better healed work.
Stencil and preview tools set size and print. None of them measure whether the design survives.
Start free. Prices shown in USD; your local currency is applied at checkout.
Try it on real work
Cancel anytime from the billing portal. VAT/tax handled at checkout.
It reports geometry and flags thresholds. It never claims to know how your client's skin will heal.
Uploads are processed to produce your result and auto-deleted within hours. Never used to train anything.
Every number is at the true tattoo scale you set - not screen pixels.
No. It measures geometry - line width, spacing, density, merge risk - and flags values below safe thresholds. It never predicts an individual's healing.
PNG, JPG, WEBP, SVG or PDF line-art up to 12 MB. Vector (SVG/PDF) gives the most precise measurements.
You enter the real width the piece will be tattooed at. Every measurement is computed at that true scale with a sub-pixel CV engine, not from screen pixels.
Uploads are processed to produce your result and auto-deleted within hours. They are never used to train models or shared.
No account for a few free analyses. Create a free account for 5/month, or upgrade to Pro/Studio for unlimited.
Prices are shown in USD; Stripe applies your local currency automatically at checkout.
Start free - 5 analyses a month, no card. Upgrade when you run more.