EmuSync vs GSBS
EmuSync
github.comGSBS
github.comSide by side
| Figure | EmuSync | GSBS |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 0 |
| Spec score · Game Save Managers | 8.2 (#3) | 7.5 (#18) |
| API | EmuSync provides a local HTTP API for advanced users, scripts, and third-party automation tools. | The web UI provides an OpenAPI specification at /api/openapi.json. |
| Purpose | EmuSync syncs game save files across devices by mapping save locations to a shared cloud storage provider. | GSBS syncs game saves across Windows, Linux, and macOS using a central server and clients installed on each PC. |
Plans
In their own words
EmuSync
EmuSync syncs game saves between devices by linking save locations to shared storage. It is aimed at people who play emulator or non-Steam games on multiple devices, and at anyone seeking another save backup. Storage can be a local or shared folder, Google Drive, Dropbox, or OneDrive. Users can configure save locations, let the app detect saves, and choose automatic or manual syncing. EmuSync also provides local backup and manual restore. Steam Deck users can check sync status with a Decky plugin without switching to desktop mode. Advanced users and scripts can use its local HTTP API, which requires no authentication and is documented as available only on the device, not over the network. The privacy policy says personal information is not collected, stored, or transmitted; app data stays locally or with the chosen cloud provider. Windows 10 and 11 x64 are confirmed working, and Linux instructions cover Steam Deck. The project says it cannot currently build and test for Mac and has no plans for Android or iOS. Its Windows installer is unsigned and may trigger a SmartScreen warning.
GSBS
GSBS is a free game-save synchronization and backup service for Windows, Linux, and macOS. Clients connect through a central server, detect when a supported game is running, and wait to sync until it closes. The client checks game installations across Steam, Epic, GOG, Ubisoft, EA, Xbox, Heroic, Lutris, Bottles, and Prism against a PCGamingWiki manifest. It translates save paths between Windows and Linux, including Proton paths. Save files are versioned and can be restored through the web dashboard. Optional end-to-end encryption uses client-side AES-256-GCM with Argon2id; without that option, saves are plaintext on the server and in backups. Scheduled tar.zst snapshots can include the database, keys, and saves, with storage on local disk or S3. GSBS can send webhook, Discord, and ntfy alerts, including for conflicts, quota, and backups. The project recommends Docker Compose for the server and provides a Windows server setup executable. It is distributed under the MIT License.