Resilio Sync
Resilio Sync is a peer-to-peer file synchronization app for Mac that keeps folders in sync across computers, mobile devices, NAS systems, and servers.
What is Resilio Sync?
Resilio Sync is a file synchronization and transfer app for Mac that helps users keep selected folders consistent across multiple devices without relying on a traditional cloud storage service. It is built for people who want to move or mirror files between Macs, PCs, mobile devices, NAS systems, and servers, including large folders and media libraries. The app is commonly used for personal backup workflows, cross-device file access, shared project folders, and direct device-to-device transfers. It supports syncing across different platforms, linking your own devices, and sharing folders with other people when you want collaborative access. Selective sync options can help save local disk space by letting you download only the files you need on a specific Mac. Resilio, Inc. publishes the product for users who want private, continuous syncing as part of everyday productivity and storage workflows.
Key features
- Sync selected folders directly between Macs, PCs, mobile devices, NAS systems, and servers
- Link your own devices to keep files available across multiple locations
- Share folders with other people for ongoing file access and updates
- Transfer large files without using a traditional cloud storage workflow
- Use selective sync to keep only needed files stored locally
- Back up photos and videos from mobile devices to another device
- Access synced content across different platforms
- Keep project folders updated automatically as files change
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Safety overview
Status: Mostly safe
Resilio Sync is legitimate synchronization software, but it works by reading and updating the folders you choose to sync and may run in the background to keep them current. That behavior is normal for this type of app. Because it can copy changes quickly across connected devices, accidental edits or deletions in a synced folder can also spread quickly. Use it only with folders you intentionally want synchronized, and keep a separate backup for important data.
Recommendation: Keep Resilio Sync if you actively use it to sync files between devices or maintain shared folders. If you no longer use those sync jobs, you can remove the app after confirming that any important files are stored locally where you want them and are backed up elsewhere.
Common paths
/Applications/Resilio Sync.app
Cache paths
~/Library/Caches/com.resilio.Sync
Support paths
~/Library/Application Support/Resilio Sync
Preference paths
~/Library/Preferences/com.resilio.Sync.plist
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