1.qarmin / czkawkaMulti functional app to find duplicates, empty folders, similar images etc.duplicatesrustcleanersimilar-imagessimilar-musicmultiplatform+3 moreFluentOther license35K total1.3K forks+221 starsfrom 34,558 · score 5.40
2.janeczku / calibre-web:books: Web app for browsing, reading and downloading eBooks stored in a Calibre databasecalibreepubmobiebookebook-managerFluentGPL-3.019K total1.9K forks+52 starsfrom 18,473 · score 3.97