Free tools

Every QR question,
answered with a tool.

14 free tools from the people who verify every code they sell. Check a code, make one, or get the size and colours right before the printer does. No account, no watermark, nothing stored.

Check a code

Upload any QR code and find out what it does and whether it will scan.

QR code testerUpload a code and find out if it really scans.Open QR code readerScan a QR code from an image or screenshot.Open

Make a code

Static codes for Wi-Fi, contacts, WhatsApp and campaigns. No account, no watermark.

Wi-Fi QR codeLet guests join your Wi-Fi with one scan.Open vCard QR codeA contact card people can save with one scan.Open WhatsApp QR codeOpen a chat with your number, message pre-filled.Open Bulk QR generatorPaste a list of links, download a zip of codes.Open QR to SVG and PDFTurn a blurry code image into a clean vector.Open Link shortener with QRA short link and a code that counts scans.Open UTM builder with QRCampaign-tagged links, with a code ready to print.Open

Get it right

Sizes, colours, error correction and the reasons codes fail in the wild.

Size calculatorHow big a QR code needs to be for the scan distance.Open Contrast checkerWill these two colours scan?Open Error correction demoSee how much of a code can be damaged and still scan.Open TroubleshooterTwelve reasons codes fail, and the fix for each.Open Print size chartBusiness card to billboard, the sizes that work.Open

Why these are free

AriaQR sells one thing: codes made from your own artwork, verified before download. Everything a classic code needs, from a Wi-Fi generator to a print-size chart, we give away, because a code that scans is the baseline, not the product. When you want the code to look like something, that is the paid part.

The next step

Make the code the artwork.

These tools make and check classic codes. AriaQR turns your photo, logo or illustration into the code itself, verified on real decoders before you download, with a link you can edit and track.

Generate your code See the gallery
An AriaQR picture code