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Darcs vs Mercurial: catalog facts
Darcs	Mercurial
Free Free and open source.	Free Free and open source under the GPL-2.0-or-later licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Change-based model instead of snapshots No central server needed and works offline	Full history in every clone, so most actions are local Approachable command set
Prebuilt binaries are not kept up to date Much smaller ecosystem and hosting support than Git	Fewer hosting services and tools support it than Git Command line first; graphical clients are separate
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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