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Fileside vs QSpace: catalog facts
Fileside	QSpace
Paid Paid licence with a free trial.	Paid Sold through the Mac App Store and as QSpace Pro; the page does not list prices.
Windows, macOS	macOS
Tiled multi-pane layouts saved per project Keyboard palette for jumping between folders	12 switchable multi-pane layouts Built-in FTP, SFTP, WebDAV, SMB, S3 and cloud drive connections
Paid after the trial No Linux version	macOS only App Store and Pro editions differ in features
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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