Local-only · End-to-end encrypted · No accounts

⌘C here.
Ctrl+V there.

Klipsy syncs your clipboard between your Mac and your Windows PC over your own Wi‑Fi: text, images, and files, encrypted end‑to‑end. Your clipboard contents never touch the cloud.

~11 MB native app · 7-day free trial · no card, no account
Copy on Mac·Paste on Windows·Works the other way too
How it works

Three steps. One time.

No account, no signup, no cloud configuration. Pair once and forget it exists.

Install on both

Download for macOS and Windows. A tiny ~11 MB native app (Rust, not Electron) that lives in your menu bar and system tray.

Pair once

They find each other on your Wi‑Fi. Click Connect on one, Allow on the other. Encrypted from that moment, reconnects automatically forever.

Copy here, paste there

Text, screenshots, files. The clipboard just… exists on both machines. Your shortcuts don't change.

Bonus once you're paired

iPhone and iPad
come along for free.

Once Klipsy links your Mac and your PC, anything your Mac sees via Apple's Universal Clipboard (iPhone, iPad, another Mac) lands on Windows too. One license, four device classes, no extra app on the phone.

NoteThe iPhone and iPad path needs a Mac in the chain (that's Apple's Continuity talking). No Mac? Windows ↔ Windows pairs still work on their own.

Apple Continuity (iCloud) Klipsy (your LAN)
Features

Small app. Sharp tools.

No dashboards, no feeds, no AI. A clipboard that works on both machines and gets out of the way.

Clipboard history

Remembers your last 50 clippings (configurable 10–100). History survives restarts until you clear it.

~/.klipsy/history.json · atomic writes

Tray quick access

Your latest clips, one click from the menu bar or tray. Re-paste the top 10 with keyboard shortcuts.

⌘0–9 / Ctrl 0–9

Files & images

Copy a screenshot or drag a file onto the window (≤10 MB). It lands in ~/Downloads/Klipsy on the other side, already on the clipboard, ready to paste.

Auto-reconnect

Remembers its partner and redials the moment it reappears. Survives sleep, wake, and Wi-Fi drops with a connection watchdog.

Zero config

Devices auto-discover on your network. One-click pairing: no codes to type, no IP addresses to find. Manual connect exists as a fallback.

Native & tiny

~11 MB, Rust + Tauri. Launch-at-startup toggle, near-zero idle CPU, instant sync: the clipboard is checked every 500 ms.

Rust · Tauri 2 · not Electron
Privacy

If it can't reach the internet, it can't leak.

Your clipboard syncs peer-to-peer over your own Wi-Fi. There is no relay server, because there is no server. We couldn't read your clipboard if we wanted to.

  • AES-256-GCMEvery message sealed with authenticated encryption. A random 256-bit key is generated per pairing, with a fresh nonce per message.
  • LAN-only P2PClipboard data moves device-to-device over a direct WebSocket on your network. It stays on your LAN and never routes through a server.
  • Zero telemetryNo analytics, no crash reporting, no accounts, no "anonymized usage data". Nothing to opt out of.
  • Two connections, totalThe app talks to exactly two external services, api.revenuecat.com and the license validator, both only for checking your subscription. Never your clipboard.
klipsy · network monitor
$klipsy --inspect-traffic
▸ peer192.168.1.42:9876ws · aes-256-gcm
▸ syncclipboard text (148 B)encrypted ✓
▸ syncscreenshot.png (1.2 MB)encrypted ✓
▸ cloudno outbound clipboard traffic
▸ licenseapi.revenuecat.com · status check only
uptime 14d · 0 servers · 0 accounts · 0 telemetry
Pricing

Try free for 7 days. Then pick one.

Every plan covers both your machines and every feature. The trial starts in the app: no card, no account.

Monthly

$2.99/month

Cancel anytime.

Start free trial
  • 2 devices
  • All features included
  • Cancel anytime
Save 44%

Annual

$19.99/year

$35.88 · works out to $1.67/mo.

Start free trial
  • 2 devices
  • All features included
  • Best value

Lifetime

$49.99once

Pay once. All future updates.

Buy lifetime
  • 2 devices
  • All future updates included
  • No subscription

After purchase you get a sync code for your second device. Prices in USD · Cancel anytime · Sync pauses after expiry, your history stays.

FAQ

Straight answers.

Is my clipboard data on your servers?+

No. Architecturally impossible. Clipboard data moves device-to-device over your local network, encrypted with AES-256-GCM. There is no server component that ever sees your clipboard.

Do both machines have to be on the same Wi-Fi?+

Yes, that's the privacy feature. If it can't reach the internet, it can't leak. VPNs or guest networks with AP isolation can block discovery; manual IP connect exists as a fallback in Settings.

How many devices per license?+

Exactly two: one pairing. After purchase you get a sync code (CLIP-XXXX-XXXX) to enter on the second device. Strict 1:1 pairing keeps the security model small.

What about big files?+

File transfers cap at 10 MB: clipboard-sized things, not movie files. Received files land in ~/Downloads/Klipsy and go straight onto your clipboard, ready to paste.

Is there a mobile app?+

Not yet. Klipsy is desktop-only: macOS and Windows. Mac↔Mac and Windows↔Windows pairs work too.

What happens when my trial ends?+

Sync pauses; your clipboard history stays. Subscribe (or enter a sync code) and you're back instantly. There's a 24-hour grace period after expiry.

Your clipboard, on both desks.

Free for 7 days. No card, no account. Just download it on both machines.

macOS 12+ · Windows 10/11 · ~11 MB