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Do you prefer web services? If you have multiple different cloud storage, then I'd say MultCloud. Mover can be an alternative, but the supported connectors are not as many as MultCloud does.


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Partial solution: Google Photos will back up unlimited quantity photos and videos with a cap on quality: Back up unlimited photos and videos for free, up to 16MP and 1080p HD. Access them from any phone, tablet, or computer on photos.google.com – your photos will be safe, secure, and always with you. Amazon Photos: If you have Amazon Prime, Amazon ...


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Nextcloud is an open-source alternative to google drive. The software is free but it is self-hosted. Registered users can also sync documents shared with them. ✔️ Allow visitors to upload, download files, create folders and move files between folders, but restrict them from delete files ✔️ Be recoverable if something goes wrong ✔️ Visitors can view without ...


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https://www.raidrive.com/ I am using it for WebDAV, but it also supports common clouds storages. Currently its free.


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