37 content typesvector for printruns in your browserno account
Check it before you print it.
Most generators hand you a PNG and wish you luck. This one reads the symbol it just built — the version, the modules your logo covers, the quiet zone, the contrast, the width in millimetres — and tells you what will stop it scanning, while there is still time to change it.
www.gencore.space/qr-generatorEncoded on the server and drawn from the module matrix. Point a camera at it.
- Version
- 3 · 29×29
- Payload
- 38 of 42 bytes
- Recovery
- level M
- Quiet zone
- 4 modules
What goes inside
The actual text the symbol carries — not a description of it.
Everyday
The six people come for
URL / Link
https://www.gencore.spaceWi-Fi
WIFI:T:WPA;S:Office 2F;P:hunter2;H:false;;vCard / Contact
BEGIN:VCARD · VERSION:3.0 · FN:Ada Lovelace · N:Lovelace;Ada;;; · TEL;TYPE=CELL:+442079460123 · …Email
mailto:hello@example.org?subject=Invoice+2041Phone
tel:+442079460123SMS
sms:+442079460123?body=Table%20for%20two%20at%20eight%3F
Apps and profiles
A link with the right shape
WhatsApp
https://wa.me/442079460123?text=On%20my%20wayTelegram
https://t.me/gencoreYouTube
https://youtube.com/watch?v=dQw4w9WgXcQInstagram
https://instagram.com/gencoreGitHub
https://github.com/gencore/qrZoom Meeting
https://zoom.us/j/8451230099
Payments and places
Formats a wallet or a map app knows
Bitcoin
bitcoin:bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq?amount=0.015Ethereum
ethereum:0x71C7656EC7ab88b098defB751B7401B5f6d8976F?value=500000000000000000e18PayPal
https://www.paypal.com/paypalme/gencore/25.00UPI Payment
upi://pay?pa=gencore%40okaxis&pn=GenCore&tn=Payment&am=499&cu=INRSEPA Payment
BCD · 001 · 1 · SCT · · · GenCore Ltd · DE89370400440532013000 · · · 120.00 · ·GPS Location
geo:48.8584,2.2945
What gets checked
Before the download button does anything.
The quiet zone, in modules
Four modules of empty border, which ISO/IEC 18004 requires. It is the first thing missing when a printed code refuses to scan against coloured artwork.
Dark on light, not the reverse
A contrast ratio cannot see inversion: white modules on black score a perfect 21:1, and most phone cameras will not read them. This check looks at which of the two is actually darker.
What the logo costs
A logo hides modules. The studio counts exactly how many, raises error correction to level H on its own, and says no to a logo the recovery budget cannot carry.
Millimetres, not pixels
PDF and EPS come out at the width you ask for. The studio names the smallest width that still survives a press: modules under 0.17 mm, or under four printer dots, break up on paper.
Frequently Asked Questions
What content types do you support?
We support 30+ content types: URLs, text, email, phone, SMS, WhatsApp, Telegram, Discord, FaceTime, Wi-Fi, vCard, location, Google Maps, calendar events, cryptocurrency addresses (Bitcoin, Ethereum, Litecoin, Monero), payment (PayPal, UPI, SEPA), app store links, meeting links (Zoom, Teams), social media profiles (YouTube, Instagram, Facebook, LinkedIn, TikTok, X, GitHub), gaming (Steam, Epic Games), and custom URIs.
Can I add a logo to my QR code?
Yes. Upload a PNG, JPG, or SVG logo and it will be placed in the center of the QR code. The system automatically checks logo size against error correction level and warns if it may affect scanability. Use High (H) error correction for best results with logos.
What export formats and sizes are available?
Export as PNG, SVG, WEBP, JPEG, PDF, or EPS in Small (256×256), Medium (512×512), Large (1024×1024), or Extra Large (2048×2048). PNG supports transparent background. SVG and EPS are ideal for professional printing.
Do you store any QR data?
No. Everything runs in your browser. QR codes are generated client-side using the Canvas API. No data is sent to any server.
Make one and see what it says
{count} formats, vector out, nothing stored, no account.
Open the studio