Arq is online backup for the Mac:
- Automatically back up your important files to Amazon's S3 (Simple Storage Service).
- Never again worry about remembering to plug in an external drive for backups.
- Maintain 100% privacy (AES-256 encryption) and control of your data.
- Control exactly what gets backed up, with no limits.
- Drag-and-drop to restore files immediately and correctly, with all the Mac metadata and resource forks.
- Arq throttles its network usage so it doesn't get in your way.
- Arq "de-duplicates" your files, never backing up the same file twice.
- Arq thins your backups as they get older to save space, just like Time Machine.
- Give Arq a storage budget and Arq drops the oldest backups to stay within it.
- Arq never modifies your files or folders. Follow Arq at @arqbackup