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DirEqual vs FreeFileSync: catalog facts
DirEqual	FreeFileSync
Paid Paid app; see the developer's pricing page for current rates.	Free Free to download and use; the project runs on advertising and donations. A paid Donation…
Windows, macOS	Windows, macOS, Linux
Side-by-side tree view of both folders Detects size, date and content differences	Transfers only the differences between source and target instead of copying everything Saved jobs run unattended in batch mode, suitable for scheduled backups
Paid software Compares folders rather than showing line-by-line text diffs	The installer and the website carry advertising, and the download page pushes donations hard Some conveniences, including parallel file copying, are reserved for the paid Donation Edition
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
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 October 2, 2026	Official website Full listing and sources Checked September 20, 2026

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