QR Sizer
Regenerate blurry QR codes into crisp, print-ready versions

QR Resizer

Upload any QR code and regenerate a clean, high-resolution version in seconds. Everything runs privately in your browser — no uploads, no accounts.

Create QR

Need to build a new QR from scratch? Generate a QR code with logo for URL, WiFi, business card, food menu & more — free, no signup.

Drop your QR image here
or click to browse from your device
PNG
JPG
JPEG
·Up to 10 MB

Built for speed and privacy

No accounts. No servers. Just clean QR codes.

Lightning fast
Decoding and regeneration typically complete in under 2 seconds, right in your browser.
Fully private
Your image never leaves your device. All processing happens locally — no uploads.
Print ready
Export up to 2048×2048 PNG or crisp, infinitely-scalable SVG for any use case.

How to resize a QR code online

QR Sizer is a free online tool that decodes any existing QR code image and regenerates a clean, high-resolution copy in seconds — no signup, no software install, no data ever leaves your browser.

1

Upload your QR code

Drag a PNG, JPG or JPEG QR image (up to 10 MB) into the drop zone above, or click to browse. Even a blurry screenshot or a photo of a printed QR works.

2

Automatic decoding

QR Sizer reads the QR code locally in your browser and shows you the decoded content along with the detected type — URL, WiFi, phone, email, SMS or plain text.

3

Pick size & format

Choose an output size (256, 512, 1024, or 2048 pixels) and format (PNG or SVG). SVG scales infinitely without quality loss — perfect for large prints.

4

Download the new QR

Get a freshly generated, pixel-perfect QR code ready for business cards, posters, packaging, menus, flyers or anywhere else you need a high-resolution QR.

When to use a free QR code resizer

You already have a QR code, but it's the wrong size or too blurry. Instead of hunting down the original URL and rebuilding it from scratch, drop it into QR Sizer and get a print-ready copy instantly.

Business cards (2–3 cm)

Regenerate a small, sharp QR sized exactly for business cards — 2×2 cm or 2.5×2.5 cm — that still scans reliably from arm’s length.

Product labels & stickers

Print micro QRs on packaging, product labels, hangtags, and small stickers at 2 × 2 cm without losing scannability.

Print a large poster

Blow up a QR for a shop window, event banner, or trade-show booth without pixelation.

Restaurant menu QR

Enhance a blurry menu QR into a scannable, professional-looking code for reprints and takeaway bags.

Marketing collateral

Convert a screenshot QR into scalable SVG for brochures, flyers, and packaging.

WiFi share cards

Regenerate a WiFi-connect QR code at higher resolution for guest rooms, offices and cafés.

Add to business cards

Turn a low-resolution vCard QR into a crisp 2.5 × 2.5 cm print at 300 DPI that scans perfectly at card size.

Fix a blurry QR image

Repair pixelated or low-quality QR screenshots so scanners read them reliably again.

Event & wedding invites

Add a QR to printed invites at 2.5–3 cm so guests can scan for maps, RSVPs, or wedding registry links.

Frequently asked questions

Everything you need to know about resizing QR codes online.

What is the smallest scannable QR code size?+
The generally accepted minimum is 2 × 2 cm (0.8 × 0.8 inches) when scanned from about 20 cm away. QR Sizer lets you regenerate at exact print sizes — 2 cm, 2.5 cm, 3 cm, 4 cm and 5 cm — at 300 DPI so the printed code stays crisp and scannable.
How do I make a QR code the right size for a business card?+
Pick 2 × 2 cm or 2.5 × 2.5 cm from the size selector. QR Sizer generates the QR at 300 DPI (~480–600 pixels) which prints sharply at business-card size. For zero pixelation at any size, choose SVG format.
What DPI should a QR code be printed at?+
Aim for at least 300 DPI. QR Sizer’s print sizes (2 cm, 2.5 cm, 3 cm, 4 cm, 5 cm) are pre-calculated at 300 DPI so you can drop them into any print layout without doing the math yourself. SVG downloads are resolution-independent and always print sharp.
Can I use SVG for printing QR codes?+
Yes — SVG is actually the best format for print because it scales infinitely without any pixelation. When you pick a print size (2 cm, 2.5 cm, etc.), QR Sizer embeds physical centimeter dimensions inside the SVG so your design tool (Illustrator, Figma, Canva, InDesign) shows the exact print size.
How do I resize a QR code online for free?+
Upload your existing QR code image to QR Sizer, wait a moment for it to be decoded, choose your desired size (up to 2048 pixels) and format (PNG or SVG), and click Download. The whole process is 100% free, requires no signup, and completes in under 30 seconds.
Is QR Sizer really free?+
Yes — QR Sizer is completely free with no ads, no watermarks, no signup, and no usage limits. There is no premium tier or hidden paywall. Everything runs in your browser.
Can I make a blurry QR code sharp again?+
Yes. QR Sizer does not upscale your original pixels — instead, it decodes the QR content and regenerates a brand-new, mathematically perfect QR code at whatever resolution you choose. This is why a blurry 100×100 pixel screenshot can become a razor-sharp 2048×2048 pixel print-ready image.
Is my QR code data uploaded to a server?+
No. Everything — decoding, type detection, and regeneration — happens locally in your browser using JavaScript. Your QR image and its decoded content never leave your device. We do not store, log, or transmit any of it.
What image formats can I upload?+
You can upload PNG, JPG, or JPEG images up to 10 MB. Screenshots, photos of printed QR codes, and downloaded QR images all work. HEIC, GIF, PDF, and SVG uploads are not supported in this version.
PNG or SVG — which format should I choose?+
Choose PNG for social media, websites, screens, and most printing needs. Choose SVG when you need infinite scalability without any quality loss — ideal for large banners, packaging, business cards, and any print material where you may resize later.
What sizes can I export?+
Two categories: Digital (256, 512, 1024, or 2048 pixels for screens, social media, and websites) and Print (2, 2.5, 3, 4, or 5 cm at 300 DPI for business cards, product labels, stickers and print media). For unlimited scaling, export as SVG.
Will the new QR code still scan?+
Yes — because QR Sizer generates a fresh QR from the exact same decoded content using industry-standard encoding at error-correction level H (the highest), the new QR will scan reliably on any smartphone or QR reader, often better than the original.
What kinds of QR codes are supported?+
QR Sizer handles standard QR codes containing URLs, plain text, email links, phone numbers, SMS, WiFi credentials, contact cards (vCard), geolocation, and cryptocurrency addresses. The tool auto-detects the type after decoding.

QR Sizer is a fast, free online QR code resizer and regenerator. Upload any existing QR code image — whether it's a blurry screenshot, a low-resolution picture, or a photo of a printed QR — and instantly get a crisp new version at up to 2048×2048 pixels in PNG or scalable SVG format. Because everything runs locally in your browser, your QR content is never uploaded to a server, never stored, and never shared. No signup, no ads, no watermarks.