JIRA, Trello, monday.com, Redmine, OpenProject, GanttProject, Taiga.io, Kanboard, Zenkit, Walling, Wrike, Quire, Oracle Primavera, Gantter, Wimi, Zoho Projects, Twproject, WP Project Manager, Spider Project, Comindwork, BetterMeans are some alternatives to ONLYOFFICE Projects.