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PTGui vs Xpano: catalog facts
PTGui	Xpano
Paid Commercial software, with HDR features reserved for the Pro edition.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
Automatic alignment of overlapping photos, including multi-row sets Supports fisheye and other lens types	Automatically detects which photos form a panorama Projection and pitch, yaw and roll adjustments
Commercial licence required HDR panoramas need the Pro edition	Focused on stitching, with no general photo editing Fewer manual control point options than dedicated panorama suites
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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