The best open source alternative to Insync is Rclone, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Insync and six of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Insync are ODrive (Free, Open Source), google-drive-ocamlfuse (Free, Open Source), drive-cli (Free, Open Source) and Vgrive (Free, Open Source).
Rclone is a command line program to sync files and directories to and from: - Google Drive - Amazon S3 - Openstack Swift / Rackspace cloud files / Memset Memstore - Dropbox - Google Cloud Storage - Amazon Cloud Drive - Microsoft One Drive - Hubic - Backblaze B2 -...
Rclone vs Insync opinions
pros, cons and recent comments
Doesn't share highly-needed features like selective syncing and syncing specific local files to specific folders in cloud drives.
"drive" is a tiny program to pull or push Google Drive files. It runs in the command line. A "push" uploads local content to Google Drive while a "pull" downloads changes from Google Drive to the local computer.