Frequently Asked Questions

A QR code (Quick Response code) is a two-dimensional barcode that stores information such as URLs, text, contact details, or WiFi credentials. QR codes can be scanned instantly using any smartphone camera, making them a fast and convenient way to share information in both digital and print formats.

Visit qrcodes.gg and select the type of QR code you want to create. Enter your content — such as a URL, WiFi password, or contact information — and click "Generate." Your QR code is created instantly and can be downloaded as a high-resolution PNG file, completely free.

No, you do not need an account or sign-up to generate QR codes on qrcodes.gg. Simply visit the site, choose your QR code type, enter your data, and download. There are no paywalls, no watermarks, and no limits on how many QR codes you can create.

qrcodes.gg supports a wide range of QR code types including URL, WiFi, vCard (contact cards), email, phone, SMS, calendar events, and plain text. Each type is optimized for its specific use case so the encoded data is recognized correctly by scanning devices.

Most modern smartphones can scan QR codes directly through the built-in camera app — just point your camera at the code and tap the notification that appears. On older devices you may need a dedicated QR code scanner app. QR codes work on both iPhone and Android devices without any special software.

Yes, every QR code you generate on qrcodes.gg is free for both personal and commercial use. You can print them on packaging, business cards, menus, flyers, posters, and any other materials without licensing fees or attribution requirements.

A WiFi QR code stores your network name (SSID), password, and encryption type. When someone scans it, their phone automatically connects to the WiFi network without typing the password. This is perfect for restaurants, offices, vacation rentals, and any space where guests need easy WiFi access.

A vCard QR code encodes your contact information — name, phone number, email, company, and job title — in a standard digital format. When scanned, the contact details are added directly to the recipient's phone contacts. It is the modern alternative to exchanging business cards.

Select the Email QR code type on qrcodes.gg and fill in the recipient address, subject line, and optional message body. When scanned, the QR code opens the user's email app with a pre-filled draft ready to send. This is great for customer support, feedback collection, and making it easy for people to reach you.

Yes. Use the Event QR code type to encode event details including the title, date, time, location, and description. When scanned, the event is added to the user's calendar app. This is ideal for weddings, conferences, meetups, and any occasion where you want attendees to save the date.

A static QR code has data permanently encoded at the time of creation — the content cannot be changed later. A dynamic QR code redirects through a short URL that can be updated after printing. All QR codes generated on qrcodes.gg are static, which means they work forever without depending on any external service and never expire.

Yes. The SMS QR code type lets you pre-fill a phone number and message body. When scanned, it opens the user's messaging app with the text ready to send. This is useful for opt-in campaigns, quick customer communication, and support lines.

Yes, qrcodes.gg lets you pick custom foreground and background colors for your QR code. You can match your brand palette or design aesthetic. Just make sure there is enough contrast between the foreground and background so the code scans reliably — dark modules on a light background works best.

QR codes generated on qrcodes.gg are high-resolution PNG images suitable for both digital screens and print. The output is crisp and scalable, so you can resize it for a website banner or a large poster without losing scan quality.

Currently, qrcodes.gg focuses on generating clean, highly scannable QR codes without embedded logos. Adding a logo reduces the scannable area and can lower reliability. If you need a logo overlay, you can add one manually in an image editor — just keep it small (under 30% of the code area) and use a high error correction level.

QR codes can be downloaded as PNG images, which are universally supported across web, print, and design software. PNG offers lossless quality and transparency support, making it the best all-around format for QR codes in any context.

Generate your QR code at the highest resolution available, then download the PNG file. For best results in print, ensure the QR code is at least 2 cm (0.8 inches) on each side and has a quiet zone (white border) around it. Always do a test scan from the printed piece before mass production. See our guide on QR codes for flyers for more tips.

Static QR codes — like those generated on qrcodes.gg — never expire. The data is encoded directly in the pattern of the code itself, so it works as long as the image is intact. Dynamic QR codes that rely on a redirect service may expire if that service is discontinued, but that does not apply here.

Error correction allows a QR code to be read even when part of it is damaged, dirty, or obscured. QR codes support four error correction levels: L (7%), M (15%), Q (25%), and H (30%). Higher levels make the code more resilient but also denser. qrcodes.gg uses an appropriate level by default to balance size and reliability.

A single QR code can store up to about 3,000 bytes of data — roughly 4,296 alphanumeric characters or 7,089 numeric digits. In practice, shorter content produces simpler, faster-scanning codes. For URLs, keep them under 200 characters for the best user experience across all devices.

Yes. QR codes are a universal standard (ISO/IEC 18004) supported by virtually all modern smartphones. iPhones running iOS 11 or later and most Android phones from 2018 onward scan QR codes natively through the camera app. No special app is needed on recent devices.

The minimum recommended print size for a QR code is about 2 cm by 2 cm (roughly 0.8 inches). At smaller sizes, phone cameras may struggle to focus and decode the code. If your QR code encodes a lot of data, you may need to print it even larger because the individual modules become smaller and harder to scan.

A QR code itself is simply a data container — it is as secure as the content it encodes. Static QR codes cannot be altered after creation, so the encoded data stays the same forever. Always verify that the URL or data you encode is correct and points to a trusted destination before distributing the code.

Restaurant QR codes link to a digital menu that guests can view on their phones. Print the QR code on table tents, coasters, or directly on the table. This eliminates the need for physical menus, allows instant menu updates, and provides a contactless dining experience.

Absolutely. A vCard QR code on your business card lets people save your contact information with a single scan instead of typing it manually. Include your name, phone, email, company, and title — all stored directly on their phone in seconds.

Use qrcodes.gg to create QR codes for your wedding — link to your wedding website, share the venue location, encode the WiFi password for the reception, or create an event QR code so guests can save the date to their calendars. Print them on invitations, table cards, or signage.

Yes. Generate a unique QR code for each attendee or a single code that links to your event check-in page. Attendees scan the code on arrival for fast, contactless registration. This speeds up entry lines and reduces manual data entry at conferences, workshops, and meetups.

Create a URL QR code that links directly to your Google Business review page. Print it on receipts, table tents, or thank-you cards so customers can leave a review in seconds. The fewer steps between the ask and the review, the more responses you will receive.