1.qarmin / czkawkaMulti functional app to find duplicates, empty folders, similar images etc.duplicatesrustcleanersimilar-imagessimilar-musicmultiplatform+3 moreFluentOther license35K total1.3K forks+968 starsfrom 33,866 · score 6.88
2.janeczku / calibre-web:books: Web app for browsing, reading and downloading eBooks stored in a Calibre databasecalibreepubmobiebookebook-managerFluentGPL-3.019K total1.9K forks+234 starsfrom 18,298 · score 5.46