返回工具

QR Code Generator

从文本或URL即时生成二维码

100% 免费浏览器中运行无需注册

关于此工具

在几秒钟内从文本、URL或联系信息创建二维码。自定义大小和纠错级别，然后下载高分辨率PNG或可缩放SVG。与aukimi Vectra结合，将二维码嵌入矢量设计。 aukimi Vectra的一部分.

功能

  • 从文本、URL或联系信息生成
  • 下载为PNG或SVG
  • 可调大小和纠错级别
  • 高分辨率输出
  • 即时生成

使用场景

营销材料和传单产品包装标签活动门票和邀请函

分享此工具

帮助他人发现

HN

创建免费账户以移除水印

保存您的作品，访问完整的创意套件，无水印导出。

创建免费账户

需要更多功能？

试试 aukimi Vectra

精确的矢量插画，配备贝塞尔曲线、布尔运算和排版工具。

了解更多创建免费账户

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. 1

    Pick a content type

    Select URL, Wi-Fi, vCard, SMS, Email, or Phone at the top of the tool.

  2. 2

    Fill in the fields

    Enter the URL, network credentials, contact details, or whatever your preset requires. The encoded string preview updates live.

  3. 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. 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. 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.

常见问题

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.