Pause your keyboard, mouse, and trackpad. Unlock with Touch ID.
Download Lockin Free
Apple silicon · macOS 13 or later
curl -fsSL https://lockin-twin.pages.dev/install.sh | bash
Easiest install: paste in Terminal. Downloading the zip in a browser needs “Open Anyway” (see INSTALL.txt).
Click Lock now and authenticate. Your keyboard, mouse, and trackpad stop responding while your document, video, or dashboard stays visible.
Click the menu bar icon when you return, then unlock with Touch ID or your Mac login password.
3 input locksFree
Unlimited input locksPro
One shortcut awayStart quick lock from anywhere with ⌃ ⌥ ⌘ L. You can change the shortcut in the app.
AI task protection
In AI agents, turn on Keep awake during AI tasks.
Automatic keep-awake for AI tasksPro
Lid-closed protection and ntfy phone alertsPro
Only these agents are supported
Claude CodeCodex
Detects an active task
Keeps your Mac awake while it runs
Releases its hold when the task ends
Keep your Mac awake
In the Keep awake card, turn on Keep awake. Use Only when plugged in to require external power or choose a Timer from 15 minutes to 4 hours.
With Lockin Free, keep your Mac awake with the lid open, even if the display sleeps.
Even with the lid closedLid-closed mode is included in Pro and needs administrator approval. Keep your Mac on a ventilated surface while it’s active.
Set alarms and review activity
With Lockin Pro, turn on Alarm when unplugged or Failed-unlock alarm in the Lock card. The unplug alarm applies to locks started on external power; the other sounds after three failed attempts.
After unlocking, the Last lock card shows the duration, unlock method, and any alerts.
More in the Mac app
Download Lockin to use these features on your Mac. The optional browser simulation does not change your settings.
Included in Lockin Pro
Close the lid and keep working
Use Keep awake until you reopen the lid to end the hold when you open the lid again. Or choose Lock & keep awake with lid closed to lock input and start a hold that ends when you unlock.
Get updates on your phone
Connect Lockin Pro to ntfy to get task and safety alerts on your phone.
Lockin can release lid-closed protection when the battery runs too low or the Mac gets too hot, so it can sleep normally again.
Control Lockin from Terminal
Check status, turn Keep Awake on or off, or tie it to a process so the hold ends when that process exits.
Connect Lockin to your phone
Turn on Phone alerts in Lockin Pro. Try the steps below to see how a test alert reaches your phone.
1
Install ntfy
Get the free ntfy app on your phone. No account needed.
2
Add your topic
Copy the name Lockin generates. In ntfy, tap + and paste it. Keep your real topic name private.
3
Send a test
On your Mac, select “Send test and turn on”, then check your phone.
Browser demo only. Nothing is installed, connected, or sent.
Phone preview
Phone setup
Waiting for ntfy
Start with the free ntfy app.
App Store preview
ntfy
GetOpen
Download complete
ntfy
Add a topic
Paste the name from Lockin.
lockin-demo-example
Subscribed · ntfy.sh
Sent from Lockin on Mac
ntfy · now
Lockin test message
Phone alerts are working.
After setup: Get updates when an AI task finishes and Lockin puts your Mac to sleep, when protection stops for safety, or when battery or heat warnings occur while Lockin is keeping your Mac awake.
Open the interactive walkthrough and try the controls directly. It runs without installation and leaves your Mac’s settings alone.
Does Lockin turn off my screen?
Input lock pauses your keyboard, mouse, and trackpad while leaving your screen visible. You can keep a document, video, or dashboard on display.
How do I unlock my Mac?
Click the Lockin icon in the menu bar and unlock with Touch ID or your Mac login password.
Can my display sleep while Lockin keeps my Mac awake?
Yes. Keep Awake lets your display sleep while the Mac stays awake. Set a timer from 15 minutes to 4 hours, or choose to keep your Mac awake only while it’s charging.
Which coding agents can Lockin detect?
AI task protection requires Lockin Pro and supports only Claude Code and Codex, including Codex in the terminal and the ChatGPT app. Turn on Keep awake during AI tasks in the AI agents card. Lockin asks before adding local task hooks for Claude Code. It releases the automatic hold when work finishes; a separate manual hold can still keep the Mac awake.
Can I close the lid while Lockin is keeping my Mac awake?
Regular Keep Awake isn’t the same as lid-closed mode. Enable lid-closed mode separately if you need the Mac to keep running with the lid shut. It requires administrator approval. Keep the Mac on a ventilated surface, not in a bag, while this mode is active.
Can Lockin alert me while my Mac is locked?
Yes. Pro includes optional alarms for charger disconnection and repeated failed unlock attempts.
What happens to sleep settings after a restart?
Lockin starts with protection off and keeps your language, theme, and shortcut. Open it to restore normal sleep if lid protection was left on.
What does the CPU reading show?
It measures overall CPU usage on your Mac, not just Lockin. The app shows a dash until it has a valid reading, then updates about every two seconds while the panel is open. The browser demo doesn’t measure your CPU.
How much does Lockin cost?
Free includes three input locks and manual Keep Awake with the lid open. Pro adds unlimited input locks, AI task protection, lid-closed mode, ntfy phone alerts, and alarms on one Mac for a one-time payment of $3 during the first month after launch, then $6.
How do I install the Mac app?
Lockin requires an Apple silicon Mac running macOS 13 or later. This beta isn’t notarized. See the installation guide for macOS permissions and setup.
lockin
ntfy