# MEGAsync Desktop Sync Setup, Platform Support, and Source Licensing > MEGAsync is the official MEGA desktop application for two-way folder synchronization across Windows, macOS, and supported Linux distributions. It is suited to MEGA users who need local folders aligned with MEGA Cloud Drive, while source adopters must review the custom licence and platform-specific build files. **meganz/MEGAsync** — Easy automated syncing between your computers and your MEGA Cloud Drive - Repository: https://github.com/meganz/MEGAsync - Stars: 1,923 · Forks: 309 - Language: C++ - License: NOASSERTION - Published: 2026-10-16 · Updated: 2026-10-16 · Language: en - Canonical page: https://hysenlabs.com/projects/meganz-megasync ## What MEGAsync Synchronizes MEGAsync addresses a specific storage problem: keeping selected computer folders aligned with a MEGA Cloud Drive account without manually copying files in both directions. The repository describes the official MEGA Desktop Application as an installable desktop client rather than a command-line synchronization library or a server-side backup service. It is intended for MEGA users who want their cloud files represented locally and local file changes propagated back to the account. The synchronization boundary is a synchronized folder. According to the README, files and subfolders under that folder are replicated in both directions. A file created, renamed, moved, or deleted on the computer is expected to produce the corresponding cloud-side change. The reverse is also true: changes made in MEGA Cloud Drive are applied to the synchronized copy on the computer. This is materially different from a one-way upload utility because remote deletions and reorganizations can affect local content. That design makes MEGAsync relevant to document libraries, shared folders, and users who move between computers and cloud-managed storage. The repository description also calls the application automated syncing and backup, but the documented mechanism described here is bidirectional folder synchronization. The README does not provide retention settings for deleted files, backup snapshots, recovery windows, or exclusions for particular file types. Those capabilities should not be assumed from the word backup. ## Bidirectional Conflict Handling in the MEGA Model The documented data flow begins with a synchronized local folder and its corresponding location in MEGA Cloud Drive. Local changes are sent to the cloud, while remote operations such as renaming, moving, and deleting are reflected in the synced folder. This gives the application a consistent two-way model rather than treating the computer merely as an upload target. The README does not document how MEGAsync resolves simultaneous edits to the same file. It also does not state whether conflicts receive separate copies, what names those copies receive, or whether a user can choose which version wins. The repository layout includes a C++ source tree under `src/`, build configuration in `CMakeLists.txt`, and a `tests/` directory, so implementation details exist in the project. Their presence does not establish the behavior of a particular conflict scenario. This omission matters for adoption. Two-way propagation is convenient for ordinary file operations, but deletion and concurrent modification are high-consequence cases. Before placing an actively edited working directory under synchronization, check the current MEGA documentation or application behavior for conflict handling. Based on the README, the safe conclusion is narrower: MEGAsync states that remote and local changes propagate in both directions, but it does not promise a specific conflict-resolution policy. ## Windows, macOS, and Linux Availability MEGAsync is distributed through platform-specific releases rather than as one universal package. The README lists Windows 10 as the minimum supported Windows version and Windows Server 2019 as the minimum supported server version. For macOS, the stated minimum is Catalina 10.15. Official Linux support covers a limited set of distributions based on Debian and RedHat, including Debian, Ubuntu, Mint, Fedora, and CentOS. The repository contains separate source-build instructions for each desktop platform: `README.win.md`, `README.mac.md`, and `README.linux.md`. It also includes installer-related files such as `installer_win.nsi`, `installer_mac.sh`, and Linux packaging directories. Recent release entries are named `v6.6.2.0_Win`, `v6.6.2.0_OSX`, and `v6.6.2.0_Linux`, which indicates that releases are built separately for these operating-system families. The support statement has an important boundary. The README says that pre-built packages are available for several other Linux distributions but directs readers to `https://mega.io/desktop` rather than claiming that every Linux distribution is officially supported. A Linux package that exists is therefore not, by itself, evidence of official platform support. Teams with strict operating-system requirements should distinguish between the named supported distributions and any additional packages found on the download page. ## Installing MEGAsync and Beginning a Sync The README does not provide a direct installation command, package name, or portable archive path. It directs users who want pre-built packages to the MEGA Desktop download page: `https://mega.io/desktop` That is the documented starting point for installing the packaged application. The page is also the place to check whether an official package exists for a Linux distribution beyond the distributions officially named in the repository. After obtaining an official build, the README does not document individual installer screens, account sign-in steps, or the exact control used to select a folder for synchronization. Consequently, an exact first-use tutorial with invented buttons or commands would be misleading. The first operation that can be stated precisely from the README is selection of a folder to synchronize with MEGA Cloud Drive. Once synchronized, changes in either that folder or its cloud counterpart should propagate in both directions. Developers who intend to compile MEGAsync should use the instructions matching their target platform. Windows instructions are in `README.win.md`, macOS instructions are in `README.mac.md`, and Linux instructions are in `README.linux.md`. The top-level repository also contains `CMakeLists.txt`, `vcpkg.json`, `cmake/`, `contrib/`, and dependency-related files, but the README does not expose a short, platform-independent build command that can safely be reproduced here. ## Why the MEGAsync Source Licence Needs Direct Review The repository does not use a licence classification that GitHub can place among standard categories. The README points to `LICENCE.md`, with the British spelling used by the project, for the source-code terms. It separately directs users to `CREDITS.md` for third-party libraries. That separation is appropriate because use of the MEGAsync source and use or redistribution of bundled dependencies can involve different terms. This custom licence status is a concrete adoption constraint. An organization considering compilation, redistribution, or integration cannot rely on the repository description alone to establish permitted use, modification, distribution conditions, or warranty language. Those points must be read in `LICENCE.md`. This article does not interpret the licence or provide legal advice. Source adopters also face more than the top-level licence file. The repository contains `CREDITS.md`, `.gitmodules`, and `vcpkg.json`, which indicate that third-party components are part of the source and dependency picture. Reviewing those records is necessary before deciding whether a particular build or distribution path fits the organization's policy. The README is explicit about where the relevant files are, but it does not summarize the permissions. ## Maintenance Signals and Upgrade Surface The repository is not archived, and its last push was on 2026-09-21. Releases named `v6.6.2.0_Win`, `v6.6.2.0_OSX`, and `v6.6.2.0_Linux` were published on 2026-09-21. These facts show repository activity around that release, but they do not establish how frequently future releases will occur or how quickly issues will be addressed. MEGAsync has a broad native build surface. The primary language is C++, with Qt-related build and deployment files present in the repository. Separate platform instructions, installers, signing scripts, dependency declarations, and packaging assets mean an upgrade can involve more than replacing one executable. Depending on the chosen path, a team may need to account for Windows installer generation, macOS installation and signing files, Linux packages, third-party dependencies, and platform-specific test results. The README does not document an automatic upgrade policy, migration procedure, rollback process, or compatibility policy between releases. It also does not state whether desktop application settings can be retained across every supported platform. These are meaningful unknowns for managed deployments. Existing users should compare the release notes and platform package details for the exact target version rather than assuming that all three platform releases are functionally or operationally identical. ## MEGAsync Compared with MEGA Web Access and a Generic Sync Engine The clearest alternative described by the repository is MEGA's web access through `https://mega.io/syncing`. The repository also links to `https://mega.io/syncing` for more information about syncing. Its documented distinction is that MEGAsync is an installable application that synchronises folders between a computer and MEGA Cloud Drive. MEGAsync should also not be treated as a developer-oriented general-purpose synchronization framework. Its repository is the official desktop application, with a Qt and C++ codebase tied specifically to MEGA Cloud Drive. A generic synchronization library would normally be evaluated as a reusable component against custom storage backends, APIs, or protocol requirements. The README provides no evidence that MEGAsync exposes such an interface. For individual MEGA users who want mirrored folders, that product-specific scope is an advantage rather than a defect. For engineering teams looking for an embeddable sync engine or a storage-independent protocol implementation, the absence of documented reusable APIs in the README makes MEGAsync the wrong starting point. ## Conclusion MEGAsync is appropriate for people who want their local folders to remain synchronized with MEGA Cloud Drive through the official desktop client. It is less suitable for developers who need a generic synchronization engine, require a documented universal installation procedure, or need a standard software licence classification. Before adopting the source code, verify the build procedure in the relevant platform file, review `LICENCE.md` and `CREDITS.md`, and confirm that the operating system and MEGA workflow match your requirements. For packaged use, the first project-specific check is whether an official build is available for your platform from `https://mega.io/desktop`. ## FAQ ### Does MEGAsync synchronize files in both directions? Yes. The README states that files and subfolders are replicated in both directions, including changes such as renames, moves, and deletions. ### Which operating systems does MEGAsync officially support? The stated minimums are Windows 10, Windows Server 2019, and macOS Catalina 10.15. Officially named Linux distributions include Debian, Ubuntu, Mint, Fedora, and CentOS. ### Where can I find the MEGAsync licence and third-party notices? The project points source-code users to `LICENCE.md` and third-party library information to `CREDITS.md`. ## Sources - [Issues](https://github.com/meganz/MEGAsync/issues) - [meganz/MEGAsync on GitHub](https://github.com/meganz/MEGAsync) - [README](https://github.com/meganz/MEGAsync/blob/master/README.md) - [Releases](https://github.com/meganz/MEGAsync/releases) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/meganz-megasync