Open-source Featurebase alternatives

2 open-source alternatives to Featurebase, curated: LogChimp, Fider. Each is open-source; compare license and links below.

Tool	What it is	License	Open source
LogChimp	LogChimp collects customer feedback on boards and roadmaps you self-host — an AGPL open-source Canny and Featurebase alternative.	AGPL-3.0	yes
Fider	OSS alt to Featurebase; ~4458 stars; via openalternative.co	AGPL-3.0	yes

Positioning is each tool's own description; open-source status is evidence-based. See each linked entry for details.