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Hammer vs Skribisto: catalog facts
Hammer	Skribisto
Free Free and open source under the MIT licence.	Free Free and open source under the GPL-3.0-only licence.
Windows, Linux, Android	Linux
Native apps rather than a web page in a wrapper Runs on phones and desktops	Built specifically for writers Open source with a long development history
Issue reporting is steered towards Discord Feature details are sparse in the available documentation	Small project with a limited user community Linux is the documented platform
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-only
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 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.