ShareClick vs Synergy

A free, open-source Synergy alternative to share mouse, keyboard, clipboard and files between Mac and Windows. Encrypted, low-latency.

Looking for a free, open-source Synergy alternative? ShareClick shares one keyboard, mouse, clipboard and files between your Mac and Windows PC — with no license, encrypted by default, and built for the lowest input lag.

Feature	ShareClick	Synergy
Price	Free	Paid license
Open source	Yes (MIT / Apache)	Core (Deskflow) yes; app proprietary
Mac & Windows	Yes	Yes
Linux	Work in progress	Yes
Encryption	X25519 + ChaCha20-Poly1305	TLS
Clipboard (text + images)	Yes	Yes
File transfer	Yes	Yes
Auto edge switching	Yes (+ hotkey)	Yes
Input latency focus	~6 µs transport (UDP)	Good
Support	Community / GitHub	Commercial support

Which should you pick?

• Choose ShareClick if you want it free and open source, encrypted by default, with the lowest input lag and no license to manage.
• Choose Synergy if you need first-class Linux support and paid commercial support, and don’t mind the license fee.

Synergy is a mature, respected product — its open core (Deskflow) is excellent. ShareClick is the newer, free-and-open option focused on Mac↔Windows with a UDP input path (~6 µs transport overhead), encryption on every channel, and zero-config mDNS discovery.

Download ShareClick (free)

macOS .dmg or Windows installer.

Setup guide

Share your mouse & keyboard in 60 seconds.