syncthing

File Storage & Sync

A continuous, peer‑to‑peer file synchronization program that safely keeps files in sync across devices.

Go Latest v2.1.2 · 18d ago Security brief →

Features

View all 7 releases →

Review required

v2.1.2 New feature 18d

Auth RCE / SSRF

Grouping, CONNECT proxy, index toggle, session cookie

Open

No immediate action

v2.1.1 New feature 1mo

GUI grouping + proxies + indexing + sessions

Open

Review required

v2.1.0 New feature 2mo

Auth

Grouping + HTTPS proxy + Block indexing config

Open

v2.0.16 Mixed 3mo

⚠ Upgrade required

The database migration on first launch can be lengthy for larger setups.
Deleted items are now forgotten after fifteen months unless --db-delete-retention-interval is configured.
Some options have been renamed or converted to subcommands; check 'syncthing --help' for details.

Breaking changes

Database backend switched from LevelDB to SQLite, requiring a migration on first launch.
Single-dash long options (e.g., -home) are no longer supported and must use double dashes (--home).
The --verbose and --logflags command line options have been removed.

Security fixes

Notable features

Structured log entries with per-package log level control.
Use of multiple connections (one for index metadata and two for data exchange) by default between v2 devices.
New WARNING log level inserted between INFO and ERROR.

v2.0.15 Maintenance 4mo

Notable features