Open Utility

QR Scanner Tools

Free, local-first utilities for scanning QR codes from screens and cameras.

Local-first utilities

These small tools are designed to scan QR codes from a screen or camera without uploading the image or decoded content to a third-party service.

Windows + Linux

Full-Screen Scanner

Watches the display while running and detects QR codes that appear in videos or images.

Windows

Frame Overlay

A draggable, resizable transparent frame that scans only the region placed over a QR code.

Android / Pydroid 3

Camera Scanner

Uses the phone camera for live QR detection with a deliberate tap-to-open link workflow.

Privacy and link safety

Nothing uploaded. Scanning and decoding happen locally on the device.
No automatic link opening. A decoded URL requires an explicit user action before it opens.
Source still matters. A QR code from an untrusted image or video should be treated like any other unknown link and checked before opening.

Setup and troubleshooting

The source document contains Windows, Linux, and Android setup instructions, dependency installation, usage guidance, and troubleshooting for common issues including libzbar/DLL errors, Linux Wayland screen-capture restrictions, and CPU usage.

Read source document (PDF)