Curated list of the top 30 file synchronization tools that work seamlessly on macOS and Windows, offering secure, fast, and reliable syncing across devices.
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Industry‑standard cloud storage with automatic folder syncing, selective sync, and robust version history.
Google’s cloud storage integrates with Workspace apps, provides real‑time sync, and 15 GB free storage.
Deeply integrated with Windows and Office 365, offering seamless file sync, personal vault, and 5 GB free storage.
Zero‑knowledge encryption, end‑to‑end security, and cross‑platform sync with generous sharing controls.
Peer‑to‑peer file sync using BitTorrent technology; fast transfers without cloud storage limits.
Powerful two‑way sync and backup solution with real‑time and scheduled options, plus extensive protocol support.
Lifetime storage plans, client‑side encryption, and virtual drive that syncs files without using local space.
Generous 20 GB free tier, end‑to‑end encryption, and cross‑platform sync with secure sharing links.
Enterprise‑grade collaboration platform with granular permissions, workflow automation, and robust sync client.
Swiss‑based, zero‑knowledge encrypted cloud storage focused on high security and compliance.
Open‑source, decentralized sync tool that directly connects devices, offering full control over data.
Self‑hosted file sync and collaboration suite with extensive app ecosystem and strong security features.
High‑performance self‑hosted sync solution with file locking, encryption, and team collaboration tools.
Desktop client that adds multi‑account, selective sync, and advanced sharing to Google Drive and OneDrive.
Unified sync client that aggregates multiple cloud services into a single folder with smart sync.
Real‑time cloud‑to‑cloud sync and backup service that keeps multiple accounts in sync automatically.
Privacy‑first cloud storage with “no knowledge” encryption and secure file versioning.
Simple, low‑cost cloud storage that syncs across devices and integrates with other services via WebDAV.
File sharing and sync platform that combines cloud storage with visual collaboration tools.
Hybrid cloud solution for businesses, offering secure sync, granular permissions, and compliance tools.
Enterprise file sync and transfer service with advanced security, workflow automation, and e‑signatures.
Feature‑rich sync and backup utility with extensive filtering, compression, and scripting options.
Business‑grade OneDrive with SharePoint integration, advanced admin controls, and unlimited storage for plans.
Amazon’s cloud storage service offering photo backup and file sync, integrated with Prime benefits.
Team‑focused cloud storage with real‑time collaboration, file locking, and granular access controls.
Enterprise sync and file sharing platform with strong security, compliance, and offline access.
Cloud storage with built‑in backup, sync, and file sharing, offering unlimited storage on paid plans.
Photo‑centric sync solution that stores media locally on all devices, with optional cloud backup.
Enterprise version of Resilio Sync with centralized management, audit logs, and SSO integration.
Original peer‑to‑peer sync tool (now superseded by Resilio) that still works for legacy setups.
Digital asset management platform with sync capabilities, ideal for creative teams handling large media files.
Self‑hosted enterprise file sync and share solution with customizable branding and compliance features.