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Furnace vs Schism Tracker: catalog facts
Furnace	Schism Tracker
Free Free and open source under the GPL.	Free Free and open source under the GPL-2.0.
Windows, macOS, Linux	Windows, macOS, Linux
Supports many classic sound chips in one tracker Compatible with DefleMask modules	Faithful Impulse Tracker workflow and feel Improved IT playback over the original engine
Tracker interface has a learning curve for newcomers	Old-school tracker interface has a steep learning curve Not a full DAW; focused on sample-based module music
Downloadable app	Downloadable app
Open source	Open source
License: GPL	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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