Question 1

Is QBar Studio completely free for personal and commercial use?

Accepted Answer

Yes, QBar Studio is 100% free with unlimited generation and high-resolution exports for both personal and commercial projects. There are no subscriptions, no credit card requirements, and no paywalls.

Question 2

Do generated QR codes ever expire, or are there scan limits?

Accepted Answer

No. Unlike subscription-based QR services that disable your codes after a 14-day trial, QBar Studio generates permanent static QR codes that encode data directly into the matrix. They never expire and have zero scan limits.

Question 3

How does QBar Studio protect my privacy?

Accepted Answer

QBar Studio operates entirely client-side inside your browser. Your URLs, contact details, Wi-Fi passwords, and barcodes are never transmitted to, logged on, or tracked by any external server.

Question 4

Which barcode and QR formats are supported?

Accepted Answer

We support CODE128, EAN-13, UPC-A, Code 39, ITF-14, along with URL, plain text, Wi-Fi network credentials, vCard contact cards with photos, business profile cards, email, SMS, and custom styled QR codes with logos.

Question 5

Can I add a custom company logo or photo to my QR code or vCard?

Accepted Answer

Yes. You can upload any PNG, WebP, or SVG logo, customize its shape (circle, rounded, square), add borders, and adjust error correction levels (Level H / 30%) to ensure rapid scanning.

Question 6

Can I export scalable vector SVG files for professional printing?

Accepted Answer

Yes. Every QR code and barcode can be exported as scalable vector SVG files or high-DPI PNGs, perfect for billboards, product packaging, books, stickers, and industrial thermal label printers.

Question 7

What is the difference between CODE128, EAN-13, and UPC-A barcodes?

Accepted Answer

CODE128 is a high-density alphanumeric format used for logistics, shipping, and inventory. EAN-13 is the 13-digit international retail standard used across Europe, Asia, and globally. UPC-A is the 12-digit standard used for retail consumer goods across the United States and Canada.

Question 8

Can I generate and print bulk barcode labels on adhesive sheets?

Accepted Answer

Yes. Our Bulk Barcode & Labels tool allows you to create multi-row product label sheets with custom column layouts, margins, item descriptions, and prices ready for standard A4 and sticker printing.

Question 9

Does QBar Studio work offline without an internet connection?

Accepted Answer

Yes. QBar Studio is a Progressive Web App (PWA) with full service worker caching. You can install it on your Android, iOS, or desktop device and generate or scan codes anywhere without an internet connection.

Question 10

Can I scan paper invoices or stock sheets to generate barcodes automatically?

Accepted Answer

Yes. Our AI Sheet Scanner allows you to take a photo or upload an image of a printed invoice or inventory table, automatically extracts Article and EAN numbers, and generates printable dual-barcode sheets in seconds.

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