🔳 QR Code Generator

What is a QR Code Generator?

A QR code generator turns a link, URL, plain text or Wi-Fi details into a square pattern that phone cameras can read. This maker runs entirely in your browser: the data you enter is never sent to a server, stored or tracked. In seconds you can create custom QR codes for businesses, event posters, menus, business cards, product labels and social media profiles.

How to create a QR code

1. Enter the content: type a web address (e.g. https://projedefteri.com), plain text, an email or a phone number in the box above. The code updates instantly as you type.
2. Adjust the look: pick the size (in pixels), the quiet-zone margin and the foreground/background colors. You can match your brand, but keep the foreground noticeably darker than the background so scanners read it reliably.
3. Choose an error-correction level: L, M, Q or H. A higher level keeps the code readable even if it gets damaged.
4. Download: use "Download PNG" to save a high-resolution image, "Download SVG" for a crisp print-ready vector file, or "Copy image" to paste it straight into another app.

Content types: Wi-Fi, email, phone, SMS and vCard

Beyond plain text, the tabs above let you build QR codes that trigger a ready-made action. The Wi-Fi tab encodes your network name (SSID), password and encryption type so guests join with a single tap without typing the password — handy for cafés, offices and homes. The Email tab pre-fills the recipient, subject and message; Phone drops the number straight into the dialer; SMS opens the messaging app with the number and text. The vCard (business card) tab encodes your name, phone, email, organization and website as a standard VCARD 3.0 block, so scanning adds the contact to the phonebook with one tap. All of these payloads are built on your own device.

PNG or SVG? The right format for print

For on-screen sharing and social media, PNG is enough. But for print work — posters, signage, packaging or business cards — choose SVG: as a vector format every module is defined mathematically, so you can scale the code to any size, from A4 to a building façade, with no loss of quality. Print shops also tend to ask for vector files; the "Download SVG" button exists for exactly this.

Tips and best practices

• Contrast is essential: dark modules on a light background are the safest choice. Inverting the colors (light pattern on a dark background) can confuse some readers.
• Use level H for print: for codes that will be printed small or carry a logo, pick level H so they survive scratches and smudges.
• Keep the margin: the "quiet zone" around the code makes scanning easier; at least 4 modules is recommended.
• Use short URLs: the shorter the link, the sparser the pattern and the easier it is to scan from a distance.

Because all computation is local, it works even without an internet connection. The QR codes you create are static: the content is embedded directly in the pattern, so they never expire and require no subscription.