Content rating
Everyone
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Everyone
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About this app

blastQR is an open-source file transfer app that works completely offline. Data is transferred through sequences of QR codes displayed on a sender device and scanned by a receiver device's camera.

It's fast enough for simple everyday picture and file transfers, and it's especially useful for air-gapped systems (computers that are completely cut off from any network). Transfers can optionally be encrypted with a password to prevent interception.

- Offline & Private File Sharing
- No Internet, No Servers
- No WiFi, No Bluetooth, No Cloud
- True Air-Gap Communication
- Your Data Stays Offline
Easy offline file transfers over QR codes
Updated on
Nov 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

- Improved UI for large screen devices
Content rating
Everyone
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App support

About the developer
(주)블라스트스튜디오
hello@blastapps.dev
대한민국 서울특별시 관악구 관악구 은천로 11-3 201-제이1호 (봉천동) 08719
+82 10-2155-3005