How it works
输入数据、选择纠错级别和尺寸、工具在ローカル绘制二维码、可ダウンロード PNG 或 SVG。
为链接、テキスト、Wi‑Fi 等生成二维码——在您的设备上完成。
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输入数据、选择纠错级别和尺寸、工具在ローカル绘制二维码、可ダウンロード PNG 或 SVG。
Conversions run in your tab with JavaScript — no desktop app required.
Files stay on your device during processing. We do not receive your uploads.
Heavy codecs and AI models run locally via Web Workers and WASM (FFmpeg.wasm, Transformers.js).
输入数据、选择纠错级别和尺寸、工具在ローカル绘制二维码、可ダウンロード PNG 或 SVG。
二维码容量有限；过长链接可能需要先缩短。打印尺寸与对比度影响扫描——正式使用前请测试。
Yes. This tool is free convert online with no signup. Processing stays in your browser — no uploads.
You control quality settings. Choose higher quality for no quality loss when converting online.
Every conversion runs inside your browser tab using JavaScript and Web Workers. There is no background server queue and no account is required for core tools.
Your files are never uploaded to FreeConvertKit for processing. Originals, previews, and exports stay on your device unless you choose to download or share them yourself.
When codecs or AI models are needed, WebAssembly modules such as FFmpeg.wasm and Transformers.js execute locally — giving you desktop-class power with absolute file privacy.