Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.
Cost / License
- Freemium
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Flathub
- PortableApps.com
- Chocolatey




The best free alternative to Air Explorer is FreeFileSync, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Air Explorer and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Air Explorer are Rclone, Koofr, Cyberduck and odrive.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.




Versatile command-line utility for syncing, copying, and verifying files across local disks and multiple cloud storage providers. Features include hash-based integrity checks, timestamp preservation, compression, encryption, and mounting storage as drives for backup and transfer tasks.


Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.




A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.




Unify all your storage. odrive makes it easy to access, sync, and share all your files from one place. Integrations to 20+ services, desktop sync, CLI (inc. Linux), placeholders, zero-knowledge-encryption, web client, advanced sharing, and more.




Mount NAS, Router, Google Drive, OneDrive and Dropbox to a network drive on File Explorer. No need for synchronization and no need for web browsers!.




CarotDAV is a Simple WebDAV / FTP / SkyDrive / DropBox / GoogleDrive / Box / SugarSync client for Windows OS, available free of charge. It is also able to read GoogleDocs or IMAP.


Centralize management of numerous cloud accounts in a single platform, transfer data directly between services such as Dropbox, OneDrive, Google Drive, and FTP, automate transfers with scheduling, organize files using unified login, and track transfer history securely.




Round Sync helps you to manage your files, everywhere you go, on your local device or on most cloud providers.




Air Cluster is an application to join all your clouds in a one big cloud. It supports multiple cloud servers as Google Drive, OneDrive, Dropbox, Mega, Box, WebDAV, Naver, Yandex, Baidu, SFTP... You can do your syncs and backups in the unified cloud.



A GUI for Rclone, with additional features including batch file generation, auto cloud setup, and saved file/folder paths.




First I was afraid, I was petrified, no GUI... then I looked at the doc 2 minutes and ok it's super simple to setup & use, great alternative to Air Explorer that does not exists yet on linux