DiskPush is an open-source (MIT-licensed) desktop application and CLI tool built for fast, resumable incremental file transfers using rsync on Linux and macOS.

The main features of DiskPush include:

• Direct Server-to-Server Transfers: Moves payload directly between two remote endpoints over SFTP/SSH without routing files through your desktop or relaying through external servers.

• Two-Pane FileZilla-Style Browser: Features a dual-pane workspace (Local/Server 1 on the left, Remote/Server 2 on the right) to inspect remote directories over SFTP, create folders, rename files, delete items, and change permissions (chmod).

• Genuine rsync Engine with Smart Defaults: Leverages true rsync underneath to skip unchanged files, preserve archive metadata (permissions, timestamps, symlinks), and enable partial resumes. It automatically applies flags like --archive, --partial-dir=.rsync-partial, --human-readable, --itemize-changes, and --info=progress2.

• Safe-by-Default Operations & Mirror Previews: Preserves destination-only files by default. Before executing a destructive mirror operation, DiskPush shows the exact list of files scheduled for deletion and leaves the destination pane browsable while you confirm.

• Full-Featured CLI & Scripting Support: Offers a headless CLI sharing the same engine and connection profiles, complete with structured JSON output and stable exit codes for automated scripts.

• Direct rsync Pass-Through: Allows native rsync flags to be passed directly verbatim by appending them after -- (e.g., diskpush ./data/ prod:/data/ -- -aHAX --checksum) without re-parsing or shell intervention.

• Security & Shell Shielding: Spawns rsync using direct argument arrays with no shell, protecting remote arguments from remote login shell execution.