二维码生成器

为链接、文本等创建静态二维码。 一切都在您的浏览器中运行——无需注册、无水印、无限下载。

二维码生成器 at a glance

  • Encodes URLs, plain text, numbers or raw bytes
  • Four error-correction levels: L, M, Q, H
  • Version grows with payload size
  • Static codes never expire and need no account

How to use the 二维码生成器

  1. Choose what the code should carry — a link, plain text, or another data type.
  2. Set the colours, size and error-correction level to suit where it will be used.
  3. Download a PNG for screens or an SVG for print at any size.

Where it is used

  • Posters and flyers linking to a landing page
  • Packaging that points to instructions or registration
  • Business collateral where a short link is awkward to type

Frequently asked questions

Do these QR codes expire?

No. A static QR code encodes your data directly in the pattern, so it works for as long as the destination exists. There is no account and no renewal.

Which error-correction level should I pick?

Medium is a sensible default. Raise it to Q or H only if you are placing a logo in the centre or expect the printed code to get scratched.

Why does my code look denser than another one?

Longer data needs a higher QR version, which means more modules. Shortening the URL first produces a visibly simpler pattern that scans faster.