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QR ScanGen vs Decoder: catalog facts
QR ScanGen	Decoder
Free Free and open source under MIT-0 or CC0-1.0.	Free Free and open source under the GPL-3.0-or-later licence.
Linux	Linux
Scanning and generating in one window Scanned content copied to the clipboard automatically	Scans from a camera or a screenshot Generates QR codes as well as reading them
Small project with few contributors Basic feature set	Linux only Focused on QR codes rather than other barcode types
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.