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Roundup Issue Tracker vs MantisBT: catalog facts
Roundup Issue Tracker	MantisBT
Free Free and open source.	Free Free and open source under the GPL; third-party hosting is available separately.
Web, Self-hosted, Command line	Web, Self-hosted
Many interfaces including email, REST and command line Schema and workflow can be customized	Per-project role-based access control Customizable fields, notifications and workflow
Customization requires editing Python and templates Plain interface compared with newer trackers	Requires a PHP web server and database to set up Interface is dated next to newer trackers
Self-hosted	Self-hosted
Open source	Open source
License: MIT/ZPL-2.0	License: GPL-2.0
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 2, 2026

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