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rsyncRclone
Free

Free and open source under the GPL.

 Free

Free and open source under the MIT licence. You still pay whatever your storage provider…

Windows, macOS, Linux, Command line Windows, macOS, Linux, Command line
  • Transfers only the changed parts of files, so repeat syncs are fast
  • Preserves permissions, links and attributes, which makes it safe for system trees
  • 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
  • No versioning or snapshots on its own; --delete destroys without warning
  • Command-line only, with a long list of subtle flags
  • 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
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: MIT
Not stated if an account is needed No account needed
Not stated if it works offline Needs internet

Checked September 22, 2026

Checked September 20, 2026

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