1.Sync-in / serverSync-in · Sovereign platform for file storage, sharing, synchronization, and collaboration.self-hostedcloud-alternativecollaborationcollaborative-editingdropboxfile-server+14 moreTypeScriptAGPL-3.02K total160 forks+332 starsfrom 1,617 · score 5.81
2.ether / etherpadEtherpad: A modern really-real-time collaborative document editor.etherpadcollaborationweb-editordocumentscollaborativecollaborative-editing+9 moreTypeScriptAPACHE-2.019K total3.1K forks+180 starsfrom 18,436 · score 5.20