在浏览器中即时、私密地扫描条形码。无需上传服务器，100%免费且无需安装任何应用。
Open your device camera for physical barcodes or upload a screenshot/photo from your image gallery.
Point your camera at the barcode or crop closely around the code in your uploaded picture.
View your decoded text or website URL instantly. Copy with one click or export your scan history to CSV.
Unlike conventional online scanners that send your uploaded photos or camera streams to remote servers, Offline Barcode Reader processes 100% of image pixels directly inside your device memory. Your photos never leave your smartphone, tablet, or computer.
将礼品卡照片上传至云端服务器可能导致条形码泄露。本地解码确保您的礼品码100%安全私密。
Boarding passes and event tickets encode passenger names, booking reference numbers, and access tokens. Serverless scanning ensures your sensitive travel itinerary and identity details are never stored or transmitted.
Scanning Wi-Fi access codes or 2FA authentication setups locally prevents network passwords and secret keys from being sent across remote endpoints.
Instantly check UPC and EAN retail product codes or Code 128 shipping package barcodes without installing heavy mobile apps.
| Feature & Security Standard | Offline Barcode Reader (This Site) | Cloud Upload Scanners | App Store / Mobile Apps |
|---|---|---|---|
| Photo & Camera Privacy | 🛡️ 100% On-Device (0 Server Uploads) | ❌ Uploaded to External Server | ⚠️ Varies (Ad Tracking / Analytics) |
| Gift Card / Coupon Security | ✅ 100% Safe (Local Memory Only) | ⚠️ Risk of Server Leak & Redemption Theft | ✅ Protected on Device |
| App Download & Storage Size | ⚡ No Install Required (0 MB) | ⚡ No Install Required | ❌ Requires App Download (50MB+) |
| Offline & Airplane Mode | ✅ Works 100% Offline | ❌ Fails Without Internet | ✅ Works Offline |
| Screenshot & Gallery Crop | ✅ Crop & Scan from Gallery | ✅ Supported | ⚠️ Requires Extra Permissions |
无需下载！直接在 iPhone、Android、Windows 或 Mac 的浏览器中打开即可使用。
100%安全。所有图像均在您设备的内存中本地解析，绝不会传输至任何外部服务器。
可以！支持 PWA 离线技术，即使在飞行模式下也能正常扫描条形码。