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jdDiff vs Spekter: catalog facts
jdDiff	Spekter
Free The Flathub listing identifies the software as GPL-3.0.	Free Free and open source under the MIT license.
Linux	Linux
Compares individual files Compares directories	Recursive folder and file comparison Side-by-side and unified diff views
Supplied package evidence is for Linux	Linux desktop distribution is identified
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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