Upload a QR code for a full scannability report with scores.
Drop a QR image here, click to browse, or paste it — we’ll score its scannability
Upload a QR code and this tool reads it the way a scanner would, then grades five things that decide whether it scans reliably. Contrast is the difference in lightness between the code and its background. The quiet zone is the clear margin around it. Logo space measures how much of the pattern a centre logo hides. Error correction is the spare data that repairs damage. Print quality is how many pixels each module has to stay sharp.
Each check gets a score from zero to a hundred, combined into one overall rating, with specific advice for anything that falls short — not just “low contrast” but how far off it is and what to change. It is a fast, honest second opinion before a design goes to print.
For the truest reading, upload the original exported image rather than a photo of a screen. If a code will not decode at all, the more forgiving margin checker can still measure its quiet zone.
Audit the final artwork before you print thousands of menus, boxes, or flyers — catching a weak margin now saves a costly reprint later.
Customers say a code will not scan? Upload it here to see exactly which factor — contrast, margin, logo, or size — is the culprit.
A designer sent you a branded QR code with a logo? Verify it survives real scanning before you approve and pay for it.
It scores five things that decide whether a QR code scans reliably: colour contrast, the quiet-zone margin, how much of the code a centre logo covers, the error-correction level, and the print resolution (pixels per module). Each gets its own score plus an overall rating.
No. The image is decoded and analyzed entirely in your browser. Nothing is uploaded or stored, so it is safe to analyze codes for unreleased products or private campaigns.
A photo of a screen or a print adds glare, blur, and moiré that lower the scores unfairly. For the most accurate reading, upload the original exported image file. Use a photo only when you specifically want to test how the printed code performs.
Your phone may be forgiving in good light. A low score means the code has little margin for error — it may fail on cheaper cameras, in dim light, at a distance, or once printed and worn. Fixing it protects every scan, not just the easy ones.
The analyzer reads the average brightness of the dark and light modules and compares them, similar to a WCAG contrast ratio. A ratio near 5:1 or higher is comfortable; below 3:1 many scanners struggle. It is an estimate from the image, so treat it as guidance and confirm with a real scan.
Dynamic QR codes let you change the destination anytime — no reprinting — and show you every scan: when, where, and on which device. Try the full QRA studio free for 14 days.