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Meld vs Spekter: catalog facts
Meld	Spekter
Free Free and open source under the GPL, part of the GNOME project.	Free Free and open source under the MIT license.
Windows, Linux	Linux
Two-way and three-way comparison of files with live editing in place Three-way merge assistance with conflict handling and the base version shown	Recursive folder and file comparison Side-by-side and unified diff views
No official macOS build; it is Windows and Linux GTK on Windows means it looks and behaves like a port	Linux desktop distribution is identified
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 8, 2026

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