Convertix | Free QR Code Generator with Logo - Fast & Private
Free QR Code Generator
Create custom QR codes for URLs, WiFi networks, WhatsApp links and plain text. Add your logo, choose colors and download as PNG or SVG — no account, no watermark, no limits.
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How to Create a Free QR Code Online Without Signing Up
QR codes have gone from a niche logistics tool to something you see on every restaurant table, product label, and business card. The problem is that most QR code generators online either watermark your output, put your data behind an account, or charge for simple features like changing the color. This tool does none of that — every QR code is generated instantly in your browser, your data never leaves your device, and downloads are free with no watermark.
Here is a step-by-step guide to using every feature of the Convertix QR Code Generator.
Step 1 — Choose your QR code type
The first thing to do is select what kind of information you want to encode. There are four options:
- URL — paste any website link. When scanned, the camera app opens the URL directly in a browser. This is the most common use case and works on every smartphone without any additional app.
- Text — encode any plain text up to a few hundred characters. This works well for short messages, addresses, product descriptions, or contact notes that you want people to read without launching a browser.
- Wi-Fi — let guests connect to your network just by scanning. No typing, no asking "what is the password again?" — the phone connects automatically once the code is scanned.
- WhatsApp — creates a direct link to a WhatsApp chat with a specific phone number. You can also pre-fill a message so the recipient already has a template ready to send. Great for customer support, business contacts, and event sign-ups.
Step 2 — Fill in your content
Each type has its own input fields. For URLs, paste your full link including the https:// prefix. For Wi-Fi, enter your SSID (the exact network name, case-sensitive), your password, and choose the encryption type — WPA is correct for virtually all modern home and office routers. For WhatsApp, enter the phone number in international format, for example +1 followed by the area code and number for US contacts.
Step 3 — Customize colors and size
Click the foreground color swatch to change the module (dot) color of the QR code. Click the background color swatch to change what sits behind it. A few important rules for color customization:
- The foreground must always be darker than the background. A dark-on-light QR code scans reliably on all phone cameras; a light-on-dark code can fail on some older scanner apps.
- Avoid very similar shades — a contrast ratio of at least 3:1 between foreground and background is recommended for reliable scanning.
- Use the size slider to set the output resolution. 400px is fine for digital use. For print materials like posters or packaging, choose 800–1000px to ensure sharp output.
Step 4 — Add a logo to the center (optional)
Click the logo upload zone and choose a PNG, JPG, or SVG file from your device. Your logo will be placed in the center of the QR code automatically. The generator uses high error-correction level H when a logo is detected, meaning the QR code can remain scannable even with up to 30% of its modules obscured. Keep your logo to roughly 25–30% of the total QR size for the best balance of brand visibility and scan reliability.
Step 5 — Generate and download
Click Generate QR Code and the preview updates instantly. Once you are happy with the result, click PNG to download a high-resolution raster image — perfect for sharing digitally, embedding in documents, or printing at moderate sizes. Click SVG to download a vector file that scales to any size without losing quality. SVG is the better choice for large-format print, laser engraving, or embedding in a logo file.
How to create a WiFi QR code — the complete guide
A Wi-Fi QR code is one of the most practical things you can print and stick somewhere useful. Select the Wi-Fi tab, enter your router's SSID (network name) exactly as it appears in the network list — capitalisation matters — then enter the password and select WPA/WPA2 for encryption (most routers since 2010 use this). Generate the code, download the PNG, print it at a good size (at least 5 × 5 cm for reliable scanning), and stick it on your router, near the front door, or in a guest bedroom. Anyone with an iPhone (iOS 11+) or Android phone can scan it and connect without typing a single character.
How to create a WhatsApp QR code for business
Select the WhatsApp tab and enter your business phone number in full international format. In the pre-filled message field, type something like "Hi, I'd like to enquire about your services" — this saves your customers from writing a first message from scratch, which dramatically increases the chance they'll actually follow through. Generate the QR code and add it to your business cards, flyers, or store window. When a customer scans it, WhatsApp opens directly to a new message to your number with your text already filled in.
Tips for printing and using QR codes
- Always test your QR code by scanning it yourself before printing or publishing it.
- For print, use the SVG version — it stays perfectly sharp at any scale.
- Add a short "Scan me" or "Scan to connect" label below the code — people scan QR codes more when they know what they will get.
- Keep some white space (quiet zone) around the QR code. Placing it too close to the edge of a printed page can prevent scanners from detecting it.
- If your QR encodes a URL, use a short URL (such as a link shortener) so the QR code has fewer modules and scans faster and more reliably from a distance.
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