Synergy
Share one keyboard and mouse across Windows, Mac and Linux PCs
What is Synergy?
Synergy shares one keyboard, mouse and clipboard between several computers on the same local network: move the pointer off the edge of one screen and it appears on the next machine. It runs on Windows, macOS and Linux, needs no internet connection and carries no video, so each computer keeps its own display. Personal licenses for Synergy 3 are a one-time payment, and companies need a Business license. The maker, formerly Symless, took the name Synergy in July 2026.
Synergy is a paid product with a free trial, starting at $15 one-time payment (Synergy 3 Lite, personal use). See every plan
Good for
- Desks with a Windows PC, a Mac and a Linux machine side by side
- Developers and IT staff working across several computers at once
- Individuals who want a one-time payment and no subscription
Worth knowing
- Personal licenses have no free trial, only a 30-day money-back guarantee; the 14-day trial is for Business plans.
- Lite covers 3 computers and has no TLS/SSL encryption or hotkeys. Plus allows 5 computers and Max allows 15.
- All computers must be on the same local network and each needs its own screen, because Synergy does not share video.
- A Business license is required when a company pays for, reimburses or deploys Synergy, and Business editions send a daily usage report.
Key features
- Shared keyboard and mouse
- Move the pointer off the edge of one screen to control the next computer with the same keyboard, mouse or trackpad, without a hardware KVM switch or its switching delay.
- Clipboard sharing
- Copy text or an image on one computer, move the pointer to another and paste it there.
- TLS/SSL encryption
- Encrypts the keystrokes and clipboard data sent between computers over the local network. It is included from the Plus tier upward, not in Lite.
- Hotkeys and key swapping
- Shortcuts switch between computers or send keystrokes to another machine, and the Windows and Command keys can swap automatically when moving between Windows and Mac.
- Auto-config and discovery
- Synergy 3 has an interface rebuilt from the ground up with automatic configuration and discovery of computers, and a screen layout for arranging them.
- Business controls
- Business licenses add policy-based settings, centralized configuration, challenge-based offline activation for air-gapped networks and priority support.
Synergy pricing
- Starts at
- $15 one-time payment (Synergy 3 Lite, personal use)
- Free plan
- None
- Free trial
- 14-day free trial for Business plans only; personal licenses have a 30-day money-back guarantee instead
| Plan | Price | What you get |
|---|---|---|
| Synergy 3 Lite | $15one-time payment | Personal license to control up to 3 computers on a local network, with copy and paste between them. No TLS/SSL encryption or hotkeys. |
| Synergy 3 Plus | $19one-time payment | Up to 5 computers, adding TLS/SSL network encryption and keyboard shortcuts to switch computers or send keystrokes to another one. |
| Synergy 3 Max | $29one-time payment | Everything in Plus for up to 15 computers. |
| Synergy Business Essential | $90per year, priced per seat | Unlimited computers, priority support with a 4-hour SLA, offline air-gapped activation and invoicing. Includes Synergy 1 and Synergy 3. |
| Synergy Business Advanced | $190per seat / year | Adds policy-based controls, centralized configuration and deployment support, and custom LTS and legacy operating system support. |
| Synergy Enterprise | Custom | Keyless offline deployment, zero telemetry, bespoke builds, site and volume licensing and a custom SLA. Priced through sales. |
Read from symless.com on Oct 9, 2026. Prices change, so confirm with Synergy before you buy.
Ways to pay less
- Other savings25% off for newsletter subscribers
The Synergy homepage offers 25% off Synergy to people who subscribe to its newsletter, with the discount sent by email.
Stated on symless.com
Synergy alternatives
- Synergy vs Ditto
Free
- Synergy vs DisplayFusion
Free plan · from $34 one-time
Common questions
Is Synergy free?
No, Synergy is a paid product, but you can try it first. 14-day free trial for Business plans only; personal licenses have a 30-day money-back guarantee instead.
How much does Synergy cost?
Synergy lists 6 plans. Synergy 3 Lite: $15 one-time payment. Synergy 3 Plus: $19 one-time payment. Synergy 3 Max: $29 one-time payment. Synergy Business Essential: $90 per year, priced per seat. Synergy Business Advanced: $190 per seat / year. Synergy Enterprise: custom pricing. Prices were read from symless.com on Oct 9, 2026.
What platforms does Synergy work on?
Synergy is available on Windows, macOS and Linux.
Does Synergy offer any discounts?
Synergy publicly lists the following: 25% off for newsletter subscribers.
Does Synergy have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Synergy is listed for Windows, macOS and Linux.
Does Synergy have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Synergy is listed for Windows, macOS and Linux.
Is Synergy open source?
Synergy is not described as open source on its own site, as read on Oct 9, 2026.
Does Synergy work offline?
Yes, according to its own site. What works without a connection differs by plan and platform, so check the vendor's page for the detail.
Who makes Synergy?
Synergy is made by Synergy App Ltd. It dates from 2001.
What are the alternatives to Synergy?
The closest alternatives to Synergy in our directory are Microsoft PowerToys, Ditto, LocalSend and DisplayFusion. Each one has a side-by-side comparison with Synergy.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 9, 2026.