Sometime ago, I did an extensive research on the net to look for good open source tools which does the job. Every tool I gone through, I did installed it, experimented with it, and looked deep in its features. I had limited my research to tools which fulfills these criteria (so you may find many other tools not included in this comparison, so most probably they do not fulfill one or more criteria below):
- The tool is open-source (not even share-ware)
- The tool has an active development team, which is committed to continue support the tool.
Hope this effort helps you in your new projects.