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Ferrite vs Jottr: catalog facts
Ferrite	Jottr
Free Free and open source under the MIT licence.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, Linux	Linux
Markdown writing with preview Also handles JSON, YAML and TOML	Markdown and plain text editing for writers Focus on speed and simple use
Focused on a few file types rather than general programming Younger project than established editors	Builds for platforms other than Linux are not detailed in the research Not intended as a programming editor
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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