QR Code Generator
Tạo mã QR tức thì từ văn bản hoặc URL
Gioi thieu ve cong cu nay
Tạo mã QR từ văn bản, URL hoặc thông tin liên hệ trong vài giây. Tùy chỉnh kích thước và mức sửa lỗi, tải xuống dạng PNG hoặc SVG. Kết hợp với aukimi Vectra để nhúng mã QR vào thiết kế vector. Thuoc aukimi Vectra.
Tinh nang
- Tạo từ văn bản, URL hoặc thông tin liên hệ
- Tải xuống dạng PNG hoặc SVG
- Kích thước và sửa lỗi có thể điều chỉnh
- Đầu ra độ phân giải cao
- Tạo tức thì
Truong hop su dung
Chia sẻ công cụ này
Giúp người khác khám phá
Tạo tài khoản miễn phí để xóa watermark
Lưu tác phẩm của bạn, truy cập bộ công cụ sáng tạo đầy đủ và xuất không có watermark.
Cần thêm?
Thử aukimi Vectra
Minh họa vector chính xác với đường cong Bézier, phép toán Boolean và công cụ typography.
How to create a QR code with logo
Generate a real, scannable QR code with custom colors and an optional centered logo, entirely in your browser.
- 1
Pick a content type
Select URL, Wi-Fi, vCard, SMS, Email, or Phone at the top of the tool.
- 2
Fill in the fields
Enter the URL, network credentials, contact details, or whatever your preset requires. The encoded string preview updates live.
- 3
Customize colors and quiet zone
Pick foreground and background colors. The default quiet zone (2 modules) is fine for most uses — increase it for physical printing.
- 4
Optionally add a logo
Upload a PNG/SVG logo and slide its size between 10–30%. Error correction is auto-set to H so the QR remains scannable.
- 5
Download PNG or SVG
Click PNG for raster or SVG for print/design use. The QR is saved directly from your browser — no upload required.
Câu hỏi thường gặp
Are the QR codes generated by this tool real scannable QR codes?
Yes. We use the official QR Code encoder (ISO/IEC 18004) via the qrcode library — each code is a valid, scannable QR code that works with any phone camera or reader app. Earlier builds used a cosmetic pattern that looked like a QR code but was not scannable; that has been fixed.
Can I add my logo in the center of the QR code?
Yes. Upload your logo via the Logo panel and slide the size between 10–30% of the QR. The generator automatically forces Error Correction level H (30% redundancy) so the underlying data stays readable despite the occlusion.
What kinds of data can I encode — just URLs?
Six presets are supported out of the box: URL, Wi-Fi credentials (WPA/WEP/open), vCard contact, SMS message, Email with subject + body, and phone number. Each preset encodes to the canonical text format (e.g. `WIFI:T:WPA;S:...;P:...;;` for Wi-Fi, `BEGIN:VCARD... END:VCARD` for contacts).
How much data can I fit in a single QR code?
Up to ~4,296 alphanumeric characters or ~2,953 bytes at the lowest error correction level, but practical limits are much smaller. Shorter input keeps the QR easy to scan on small displays — for URLs we recommend staying under 200 characters.
Which error correction level should I choose (L, M, Q, H)?
L = 7% recovery (smallest QR), M = 15% (good default), Q = 25%, H = 30% (largest but survives damage/logos). Use M for screen display, Q or H for print or anywhere the code might get scratched. With a logo overlay we force H automatically.
Do my QR codes expire? Can they be tracked?
No. The QR is generated entirely in your browser and encodes the content directly — there is no redirect through our servers, no tracking, no expiration. The QR works offline forever once printed.
PNG or SVG — which export should I pick?
Choose SVG if you plan to print at any size or embed in design files (it is resolution-independent and tiny). Choose PNG for social media, email signatures, or anywhere a raster image is expected. Both are rendered with the same encoder.