QR codes have gone from novelty to necessity. They appear on business cards, restaurant tables, product packaging, event posters, and marketing materials everywhere. Creating one used to require expensive software — now it takes 30 seconds and a free online tool. Here is everything you need to know.
What Can You Encode in a QR Code?
A QR code is just a visual encoding of data. You can encode: website URLs (most common use), plain text, email addresses (opens a compose window when scanned), phone numbers (opens the dialer when scanned), SMS messages, WiFi network credentials (auto-connects when scanned), geographic coordinates, vCard contact information, and calendar events. The most popular use is encoding a website URL so people can visit your page just by scanning with their phone camera — no typing required.
How to Create a Free QR Code (Step-by-Step)
1. Go to freepdfconvertor.com and click the QR Code tab. 2. In the text box, enter the content you want to encode — a URL, text, email address, or anything else. 3. Select a size: Small (132px), Medium (198px), or Large (330px). For print materials, use Large. For digital use, Medium is fine. 4. Click Generate QR Code. 5. Your QR code appears instantly. Click the download link to save it as a high-resolution PNG image.
The whole process takes under 30 seconds. The downloaded PNG is ready to paste into Word, PowerPoint, Canva, or any design tool.
Choosing the Right QR Code Size
The size you need depends on where the QR code will be used and how close people will be to it. For business cards: Small (132px) — people hold business cards close. For flyers and posters: Medium (198px) or Large (330px). For billboards or vehicle graphics: Large (330px) minimum — scale up further in your design software. For websites and email: Small or Medium. For product packaging: Medium or Large depending on the package size.
A common mistake is using a too-small QR code on a poster — people across the room cannot scan it. When in doubt, go larger.
Do QR Codes Expire?
QR codes themselves never expire — they are just images containing data. If you encoded a URL in the QR code and that URL still works, the QR code still works. The only way a QR code 'stops working' is if the destination URL goes offline or changes.
For this reason, it is wise to encode a URL that you control (like your website's homepage or a landing page) rather than a specific page that might move. If you need to update where the QR code points after printing, consider using a URL shortener service in the middle.
Batch QR Code Generation
If you need to create QR codes for multiple URLs or items — for example, one QR code per product SKU in a catalog, or one per employee badge — use the Batch QR Code Generator. Enter your values separated by commas, select a size, and generate up to 100 QR codes at once, downloaded as a ZIP archive. This is far faster than generating them one by one.
Frequently Asked Questions
Are QR codes free to create?
Yes, on ToolSuite you can create unlimited QR codes completely free. There is no signup, no daily limit, and no watermark on the downloaded image.
Can I edit a QR code after creating it?
QR codes cannot be edited once created — they are static images. If you need to change the encoded content, generate a new QR code and replace the old one.
What format is the downloaded QR code?
The QR code downloads as a PNG image, which is compatible with virtually all design software, word processors, and publishing tools.
How many QR codes can I create at once?
The batch generator supports up to 100 QR codes per batch, all downloaded in a single ZIP file.