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QR ScanGen vs Qrca: catalog facts
QR ScanGen	Qrca
Free Free and open source under MIT-0 or CC0-1.0.	Free Free and open source under the GPL-3.0+.
Linux	Linux, Android
Scanning and generating in one window Scanned content copied to the clipboard automatically	Both scans and generates QR codes Runs on Linux desktops and Android
Small project with few contributors Basic feature set	Scanning needs a camera Narrow single-purpose tool
Downloadable app	Downloadable app
Open source	Open source
License: MIT-0 OR CC0-1.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.