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Synology Cloud Sync vs Rclone: catalog facts
Synology Cloud Sync	Rclone
Free Runs as a package on a Synology NAS; the cloud storage services are billed separately by…	Free Free and open source under the MIT licence. You still pay whatever your storage provider…
Self-hosted	Windows, macOS, Linux, Command line
Works with Backblaze B2, Dropbox, Google Drive and OneDrive One-way or two-way sync with per-task schedules	Over seventy cloud storage products behind one command syntax, including S3, Drive, Dropbox, B2 and Azure Preserves timestamps and verifies checksums at all times, and resumes interrupted transfers
Requires a Synology NAS Closed source	Command line only; the web GUI is experimental and third party front ends vary in quality Mounting a remote as a drive needs WinFsp on Windows or FUSE on Linux and macOS
Self-hosted	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.