v0.2.0 — Now available for Mac & Windows

Your clipboard,
supercharged.

10 clipboard slots with keyboard shortcuts, a floating HUD, and local AI that transforms your text — all without sending a single byte off your machine.

Download Now
Try Me ↓
CopyCat v0.2.0
gemma4:e4b · ready
Workflow
Slots
Prompts
Shortcuts
System
AI Engine
Display
About
Light mode
Local-only. Your text never leaves this machine.
Slots
Ten keyboard-shortcut slots. Assign an AI prompt to a number key, then ⌘⌥ + that number transforms whatever you copy.
3 filled 5 / 10 mapped
1
★ Summarize
The quick brown fox jumped over the lazy dog near…
2
★ Fix Grammar
Empty
3
★ Translate ES
Meeting notes from the quarterly review with…
4
No prompt
Empty
5
★ Bullet Points
Empty
6
No prompt
Empty
7
No prompt
Dear team, I wanted to follow up on the action…
8
★ Redline
Empty
9
No prompt
Empty
0
No prompt
Empty
1 Slot 1 Press ⌘ ⌥ 1 to copy
AI Prompt
★ Summarize
Current Content
The quick brown fox jumped over the lazy dog near the riverbank while the sun set behind the mountains…
Prompts
Create AI prompts and assign them to clipboard slots.
Summarize
Summarize the following text into 5 concise…
1
Fix Grammar
Fix all grammar and spelling errors in the…
2
Translate to Spanish
Translate the following text to Spanish…
3
Bullet Points
Extract the key points from this text and…
5
Redline Contract
Review this contract clause and identify…
8
Prompt Template
The copied text is automatically appended to the prompt before being sent to the AI.
Assign to Keyboard Slot
1 2 3 4 5 6 7 8 9 0
Shortcuts
Configure modifier keys for each action. The slot number (1–0) is added automatically.
Copy to slot
Modifier keys — press with 1-0 to copy to that slot
⌘+⌥+1-0
Paste from slot
Modifier keys — press with 1-0 to paste that slot
⌘+⌥+⇧+1-0
Toggle HUD
Show or hide the floating HUD
⌃+⌥+⌘+␣
Clear all slots
Empty every slot at once
⌘+⌥+⌫
Press Esc to cancel recording. Changes apply immediately.
AI Engine
Manage the local AI model that powers text transformations.
Local engine Running
Powered by Ollama. All processing happens on your Mac — your text never leaves the device.
Available Models
TinyLlama 1.1B tinyllama
Ultra-fast, lightweight — great for simple tasks
640 MB Speed Quality
Gemma 4 E2B gemma4:e2b
Google's latest — 2.3B effective params, 128K context
3.3 GB Speed Quality
Gemma 4 E4B active
Google's latest — 4.5B effective params, strong reasoning
5.4 GB Speed Quality
Llama 3.2 3B llama3.2
Meta's compact model — great balance of speed and quality
2.0 GB Speed Quality
Qwen 2.5 7B qwen2.5:7b
Highest quality — best for complex transformations
4.7 GB Speed Quality
Display
Customize the floating HUD overlay.
CopyCat 3 slots
1
Summarize
The quick brown fox jumped…
3
Translate ES
Meeting notes from the qu…
7
Dear team, I wanted to fo…
Position
Appearance
Glass
Solid
Minimal
Accent Color
Customize the HUD accent color
CopyCat
v0.2.0 — Ten clipboards. One keyboard. Zero cloud.
How it works
1
Assign an AI prompt to a number key (1–0) in Slots.
2
Select text anywhere and press ⌘ ⌥ + the number — CopyCat transforms it with the prompt.
3
Paste the transformed text anywhere with ⌘ ⌥ ⇧ + the same number.
All AI processing happens locally on your device. Your text never leaves this machine — no cloud, no accounts, no telemetry.

Three steps. That's it.

CopyCat works in the background — no windows to manage, no apps to switch to.

1

Copy to a slot

Select text and press your copy shortcut + a number.

⌘ + ⌥ + 1
2

AI transforms it

If the slot has a prompt, the local AI processes your text automatically.

✨ Local AI
3

Paste from the slot

Press your paste shortcut + the same number. Done.

⌘ + ⌥ + ⇧ + 1

Download CopyCat

One-time purchase — $9.99. No subscription, no account required.

macOS

Requires macOS 11+

Buy & Download — $9.99 Apple Silicon & Intel included

Windows

Requires Windows 10+

Buy & Download — $9.99 Setup .exe & .msi included
Privacy-first — your data never leaves your machine.
⚠️ macOS Gatekeeper Notice Since CopyCat isn't signed with an Apple Developer certificate yet, macOS may show a warning. After mounting the DMG, right-click CopyCat.app → Open → Open, or run in Terminal:
xattr -cr /Applications/CopyCat.app
Shortcuts

Customize every key combo

Pick your own modifier keys for copy, paste, HUD toggle, and clear actions. Click "Change" on the prototype to try the key listener — press any modifier combination and watch it update live.

  • Keycap-style modifier key display
  • Separate modifiers for copy & paste
  • Toggle HUD and clear-all shortcuts
  • Designed to avoid OS shortcut conflicts
Try Me ↓
Shortcuts
Configure modifier keys for each action.
Copy to slot
Modifier keys — press with 1-0 to copy
⌘+⌥+1-0
Paste from slot
Modifier keys — press with 1-0 to paste
⌘+⌥+⇧+1-0
Toggle HUD
Show or hide the floating HUD
⌃+⌥+⌘+␣
Clear all slots
Empty every slot at once
⌘+⌥+⌫
Click "Change" and press your preferred keys to reassign a shortcut.
Press your new shortcut keys…
Press Esc to cancel
Local engine Running
Powered by Ollama — all processing on your device.
TinyLlama 1.1B tinyllama
Ultra-fast, lightweight — great for simple tasks
640 MB Speed Quality
Gemma 4 E2B gemma4:e2b
Google's latest — 2.3B effective params, 128K context
3.3 GB Speed Quality
Gemma 4 E4B active
Google's latest — 4.5B effective params, strong reasoning
5.4 GB Speed Quality
Llama 3.2 3B llama3.2
Meta's compact model — great balance of speed & quality
2.0 GB Speed Quality
Qwen 2.5 7B qwen2.5:7b
Highest quality — best for complex transformations
4.7 GB Speed Quality
Mistral 7B mistral:7b
Strong all-rounder — excellent instruction following
4.4 GB Speed Quality
AI Engine

Local models, zero cloud

Browse a curated catalog of lightweight AI models rated by speed and quality. CopyCat connects to Ollama running locally on your machine — no API keys, no internet required.

  • Model catalog with speed & quality ratings
  • One-click download and activation
  • Ollama connection status at a glance
  • All processing stays on your machine

Everything you need, nothing you don't.

CopyCat replaces your single clipboard with a powerful multi-slot system — with AI built in.

10 Clipboard Slots

Copy to any of 10 numbered slots (1–0) using keyboard shortcuts. Each slot holds your text independently.

Custom Shortcuts

Copy and paste from any slot instantly. Choose your own modifier keys — displayed with beautiful keycap-style visuals.

Local AI Transforms

Attach AI prompts to slots — summarize, translate, fix grammar, or any custom transformation. Powered by Ollama.

100% Private

Everything runs locally. No cloud, no accounts, no telemetry. Your clipboard data never leaves your machine.

Glassmorphic HUD

A beautiful floating overlay shows your filled slots at a glance. Customizable position, style, accent color, and duration.

Cross-Platform

Built with Rust and Tauri for native performance. Available on macOS (Apple Silicon & Intel) and Windows.

Join the Beta

Get early access to new features, help shape the roadmap, and provide feedback as we build CopyCat.

No spam, ever. We'll only email you about CopyCat updates.

🎉 You're in! We'll be in touch with beta updates.