Syncthing Adds Proxy Support and Session Controls in v2.1 🔗
New grouping and block indexing options improve usability and efficiency for peer-to-peer file sync
Syncthing, the open-source peer-to-peer file synchronization tool written in Go, released version 2.1 with meaningful usability and configuration enhancements. The update introduces device and folder grouping in the GUI via a new group attribute, helping users manage complex sync topologies.
It now supports HTTP and HTTPS proxies with CONNECT tunneling, expanding network flexibility beyond existing SOCKS proxy support. For environments where storage efficiency trumps minimal transfer size, block indexing can be disabled per folder using the blockIndexing attribute, reducing database overhead. GUI session duration is now fully configurable—admins can extend, shorten, or set login cookies to infinite via sessionCookieDurationS and adjust the cookie path with sessionCookiePath. These changes reflect Syncthing’s core goals of security, automation, and individual control, reinforcing its role as a self-hosted alternative to centralized cloud sync. The project remains actively maintained, with the last commit just two days ago and a steady stream of fixes addressing platform-specific quirks, connection reporting, and filesystem resilience. Syncthing continues to prioritize data integrity and end-to-end encryption without relying on third-party servers.
The catch: While Syncthing excels at direct device-to-device sync, it lacks native conflict resolution for concurrent edits, requiring users to manage versioning externally when files are modified simultaneously across nodes.
Why this leads today Syncthing's rising adoption reflects a shift toward decentralized, self-hosted file synchronization as users seek privacy-resilient alternatives to cloud-dependent services.
- Developers syncing code and configs across personal laptops and workstations
- Teams sharing large media files over local or encrypted peer connections
- Individuals backing up sensitive documents to home servers without cloud reliance
Source: syncthing/syncthing — based on the README and release notes.