Select text⌥ SpaceDone.
Any text, any app on your Mac.
AI explains it right where you are.
Requires macOS 14+ · Apple Silicon & Intel · v1.0
Any text, any app on your Mac.
AI explains it right where you are.
Requires macOS 14+ · Apple Silicon & Intel · v1.0
See it in action
Watch how MiniAi explains unfamiliar terms instantly — and lets you dig deeper with follow-up questions.
Medical Neuroscience — Week 7
1. Mesolimbic pathway
VTA → nucleus accumbens — Reward processing
2. Mesocortical pathway
VTA → prefrontal cortex — Decision-making
3. Nigrostriatal pathway
Substantia nigra → striatum — Motor control
“Dopamine is not about pleasure — it's about the anticipation of pleasure.”
— Wolfram Schultz, 1997
How it works
Three steps. Two seconds.
Highlight any text you don't understand.
Any app on your Mac. Any language.
One shortcut. AI appears instantly.
Summary + detail, right over your window.
Need more? Ask a follow-up without leaving the popup.
Safari, VS Code, Notion, Keynote, Mail — any app where you can select text.
stochastic gradient descent
An optimization algorithm that updates model parameters using randomly sampled subsets of data.
Instead of computing gradients on the entire dataset, SGD picks small random batches — making training much faster while still converging to a good solution.
Reading a paper with unfamiliar terms?
Select, ⌥ Space, keep reading. Your flow stays intact.
TypeError: Cannot read properties of undefined
This error means you're trying to access a property on a variable that is undefined.
Check that the object exists before accessing its properties. Common fix: use optional chaining (?.) or add a null check.
Drag over a stack trace. Press ⌥ Space.
Get a plain-English explanation without opening Stack Overflow.
この機能は非常に便利です
"This feature is very convenient."
この (this) + 機能 (feature) + 非常に (very) + 便利 (convenient) + です (is — polite form)
Select text in any language.
MiniAi auto-detects and explains in the same language — or yours.
First answer not enough? Ask a follow-up right in the popup.
Full conversational AI, without opening a chat app.
7 steps vs 3. 45 seconds vs 2.
That's it. No browser. No copy-paste. No context switch.
AI got smarter. All it needed was a shortcut. ⌥ Space.
No data collection. No tracking. Just AI, right where you need it.
Native macOS performance. No Electron, no web wrapper.
Your text goes to the AI and nowhere else. No data collection.
API key stored in macOS Keychain. No telemetry or tracking.
Popup appears and vanishes. No dock icon, no menu clutter.
Lives in your menu bar. Under 20MB. Starts in under a second.
Translucent glass overlay that respects light and dark mode.
Zero distance to AI. Try it free.
macOS 14+ · Apple Silicon & Intel · v1.0