rsync-alternative

Fast file copy engine for Python. Streams over SSH, skips content it has already sent, and reads in block order to keep disks at sequential speed. Local, remote and cloud (S3, Azure, GCS) transfers, typically 3–5× faster than scp, rsync and SFTP. CLI and GUI. Linux, macOS, Windows.

Native macOS GUI for the Unison File Synchronizer (Swift + AppKit, GPLv3)

Linux CLI tool for hash-based block device synchronization over local or SSH connections.

Secure, zero-install folder transfer & one-way mirror-sync between servers over TLS. One small static binary for Windows & Linux (interoperable): parallel streams, adaptive compression, live-DB cutover, resume, and an embeddable ft.dll/libft.so for .NET/C/C++. A drop-and-run scp/rsync-style alternative.

One-way directory mirroring over TCP — real-time, encrypted, single binary

CTRL+A for developers. Gitignore-aware project backup that copies source code, not dependencies.

Move files from Finder to your NAS over SSH — verified, merge-aware and undoable. A friendlier alternative to rsync or dragging over SMB.

Verified folder & drive mirroring for macOS from the terminal. Copies only what changed, preserves Finder tags/xattrs/permissions, re-reads every copy with SHA-256 before saying SYNCED. A zero-dependency Swift alternative to rsync -a on the Mac.

EspejoBar for macOS — mirror an external drive to a backup drive like git: renames and moves replayed as renames, deleted files kept in a browsable history, safety checks before every sync. Menu-bar app. Downloads; source is private.