Von fess verwendete Projekte
fess unterstützt Open-Source-Projekte.
| Projektname | URL |
| LastaFlutes | https://github.com/lastaflute |
| DBFlute | https://github.com/lastaflute |
| Elasticsearch | https://github.com/elastic/elasticsearch |
| Apache Tika | http://lucene.apache.org/tika/ |
| SLF4J | http://www.slf4j.org/ |