To fulfill previous post I want to provide my research on free online issue and bug tracking systems available on the Internet. Surprisingly there are very few of them matching my criteria: 5 users minimum, 10000 tickets minimum, closed for public. Here they are: The only totally free & unlimited is defectr.com . It has limited functionality and funny UI but has no users nor projects limitations. My choice #1 for not complex projects. w3spt.com offers 10000 messages/5 users/100Mb-limited complex integrated project tracking system . It has a lot of custom views and reports such as FAQ, Forum, Feedback zone, Knowledge base . I would recommend it for complex but not huge projects. And the last one I want to mention is teamatic.com . It provides simple tracker for 5 persons with 5Mb attachments storage and nice interface . It may be used for small simple projects.