Clear what apps leave behind.
Finds app caches, logs, crash and diagnostic reports, saved application state, iOS device backups, and what is in your Trash. Pick categories and see sizes first.
New A menu bar that tells you what’s wrongOrganizer Sort files with a preview before anything movesCleaner Review every step before you reclaim spaceLens See the space. Follow the files.Your Mac,
Your Mac,
under control.
Organize your files. Understand your storage. Know what’s running. MacMonitor brings a careful Cleaner, Organizer, Storage Lens, Activity Monitor, and developer tools into one clear view.
First 50 licenses at $4.99, then $19One-time paymentNative for macOS 26+
FinderFileEditView
24%Tue 9:41
24%Tue 9:41An interactive recreation of the native app. Switch areas, tools and tabs, try the sample actions, and click the MacMonitor icon in the menu bar. Figures are sample data; nothing here leaves your browser.
One place to understand your Mac. Organize scattered files, explore your storage, follow live activity, and review your developer footprint before deciding what to change.
Exact copies, one kept.
Compares file contents, not just names or sizes, in a folder you choose. It always keeps one copy and moves the rest to the Trash, where you can recover them.
Find what is heavy and forgotten.
Lists big files, 100 MB and up by default, with when each was last used, so the ones you have not touched in a long while stand out.
Uninstall what you stopped using.
Shows apps unused for 90 days or more, with their leftover files found automatically. Only clearly regenerable leftovers, such as caches and logs, are pre-selected.
Undo a cleanup in one click.
A banner after every cleanup returns everything it moved to the Trash to where it was.
Your Photos library is off limits.
Libraries and app bundles count as one item, so no scan ever offers a file from inside them.
Cloud files stay in the cloud.
Files kept only in iCloud are never downloaded or listed, so nothing is deleted on your other devices.
Open apps are left alone.
Caches an app is using are marked in use and never selected for you. Apps are asked to quit before they are uninstalled.
Search any list with ⌘F, see which app a cache belongs to, and sort large files by size, age or name. Most cleanup moves items to the Trash, where you can recover them. Permanent actions are labelled and require confirmation, including erasing items already in the Trash, removing local AI models, and erasing simulator data.
How the Cleaner works in detail · How to free up space on a Mac · What is System Data?
OrganizerTurn clutter
Turn clutter
into structure.
Bring order to scattered files in Downloads, Desktop, or another folder you choose. Review the suggested structure and every file move. Nothing moves until you approve it.
- Group documents, images, video, audio, archives, and installers.
- See proposed moves and name collisions before applying them.
- Optional suggestions for PDFs, text, and images run on your Mac with Apple’s own models. Nothing is uploaded.
- Review exact duplicates while keeping a copy.
- Undo the last organization during the session.
A folder with a fresh startIllustration
▤Notes.pdf
▧Photo.png
▷Clip.mov
Documents
Images
Video
Developer SpaceSee what your
See what your
tools leave behind.
Local models. Build caches. Development artifacts. Forgotten servers. Find the storage and processes behind your work, alongside the rest of your Mac.
Local LLMs & models
Big ideas.
Smaller leftovers.
Find installed model weights across your local AI tools, compare their sizes, and remove the ones you no longer need.
Ollama
LM Studio
Hugging Face
Model discovery and cleanup are in the current build. In-app model installation is planned.
Build caches
The build is done.
The baggage isn’t.
Find Xcode DerivedData and archives, stopped simulators, package manager caches, and node_modules folders. See what each category contains and review the exact cleanup before acting.
Clear consequences. Selected actions. Itemized failures.
A clearer activity monitorIllustration
CPUMemoryNetwork
DiskGPUBatteryApps
Activity MonitorKnow what’s
Know what’s
running right now.
Storage shows what is sitting on your Mac. Activity Monitor shows what is happening now: follow apps and processes using CPU, memory, and other measured resources, then inspect the detail.
- Dedicated CPU, memory, disk, network, GPU, and battery views.
- A Health view with memory pressure, swap, and thermal state, plus seven days of history.
- Optional alerts for critical memory pressure, low disk space, a pinned CPU, or a hot Mac. Off until you turn them on.
- Per-app CPU and memory in the direct build.
- Live readings, clear units, and honest unavailable states.
Localhost, in focusKnow what’s
Know what’s
still running.
A closed terminal doesn’t always mean a stopped server. Find listening processes, their ports, and the projects behind them in one place.
- See local TCP listeners and their working directories when available.
- Connect processes to their project and memory usage.
- Review and confirm Stop for eligible developer processes.
Your local development mapIllustration
Your Maclocalhost
Web
:3000API
:8000Database
:5432Storage LensSee where your
See where your
space really went.
Understand first. Clean second. Explore your startup disk or a chosen folder as a list, bubble map, or treemap. Follow file sizes and categories before deciding what to keep or remove.
- Counts hard links and identified full APFS clones once within a scan. Shared blocks can still affect how much space removal frees.
- Whole-disk scans use Full Disk Access if you grant it, and tell you what was left out if you do not.
- Queue folders and files for review, then clean up with everything itemized.
- Browse Documents, Pictures, Movies, Music, and Applications by category.
- Before your first scan, see your disk split by category from what macOS already reports.
StorageIllustration
ApplicationsDocumentsMediaOther
One overview.
A path to the detail.
A path to the detail.
Remembers the scan
Timestamped local indexes let recent results appear quickly. Manual rescan is there when you need a fresh look.
Shows the consequence
Trash moves and permanent deletions are labelled. Moving something to Trash isn’t counted as freed disk space.
Keeps the context
Five clear areas and one shared navigation. The menu bar view shows CPU, memory, disk, network, and battery at a glance, with shortcuts to keep your Mac awake and eject external drives.
Stays on your Mac
Your files, scan results, history, and settings stay on your Mac. Apart from an update check you start yourself, the only network request the app makes is the license check in the direct download, which sends your license key and your Mac’s name to our payment provider. The Mac App Store edition makes none. Optional Organizer suggestions run on-device with Apple’s own models.
One optional permission
macOS protects some folders. Turn on Full Disk Access once in System Settings to measure the whole disk. Without it, MacMonitor still works: a whole-disk scan skips Desktop, Documents, Downloads, iCloud Drive, and external drives so macOS does not ask folder by folder, and it says what was not measured.
You approve every change
Storage scans read sizes and metadata, not file contents. Only the duplicate finder and the optional Organizer suggestions read file contents, in folders you choose. Nothing is moved or removed until you review and confirm it.
This website is separate from the app and uses Microsoft Clarity to measure how the page is used.
Simple Mac pricingOne Mac app.
One Mac app.
One purchase.
Storage, Cleaner, Organizer, and Activity together in the direct macOS app. This is a one-time purchase, not a subscription.
Introductory offer for the first 50 purchases
$4.99USD · one-time
Regular price after the first 50 purchases: $19 USD. Offer availability and the final total are confirmed at checkout.
- Storage Lens and folder browsing
- Junk, duplicate, large-file, and idle-app cleanup
- File organization with move previews
- Live activity, health history, and optional alerts
- Developer tools for models, build caches, and local servers
For macOS 26 or later. Taxes, where applicable, appear at checkout. One license works on one Mac.
Good to knowA few straight
A few straight
answers.
What is MacMonitor?
MacMonitor brings Organizer, Storage Lens, Activity Monitor, and Developer Space together in one native Mac app. Preview file moves, understand storage, follow running activity, and review cleanup before deciding what to change. Developer Space groups existing tools for local models, build caches, and listening servers.
What does the Cleaner clean?
Cleaner has four tools. The junk cleaner finds app caches, logs, crash and diagnostic reports, saved application state, iOS device backups, and Trash. The duplicate finder compares file contents in a folder you choose and always keeps one copy. Large and old files lists big files with when they were last used. Idle apps finds apps unused for 90 days or more, with their leftovers. Developer tools add local model weights and build caches.
Does MacMonitor send my files or data anywhere?
Not your files. The app has no account and no analytics, and your scan results, history, and settings stay on your Mac. Apart from an update check you start yourself, the only network request it makes is the license check in the direct download: it sends your license key and your Mac’s name to Lemon Squeezy, our payment provider, when you activate and about once a day after that. The Mac App Store edition makes no network requests. Optional Organizer suggestions for documents and images are computed on-device with Apple’s own models. Details are on the privacy page.
Why does MacMonitor ask for Full Disk Access?
macOS protects some folders, so measuring the whole disk needs Full Disk Access, which you turn on once in System Settings. It is optional. Without it, a whole-disk scan skips Desktop, Documents, Downloads, iCloud Drive, and external drives so macOS does not ask folder by folder, and it tells you what was not measured. Storage scans read sizes and metadata, not file contents.
Which Macs can run MacMonitor?
MacMonitor is a universal app, so it runs natively on Apple silicon and on Intel Macs that run macOS 26 or later. Available readings vary by hardware and permissions; for example, GPU utilization is not reported on every Mac.
Can I install and remove local AI models?
Model Vault currently discovers installed models from Ollama, LM Studio, and the Hugging Face cache and lets you review permanent removal. Installing models inside MacMonitor is planned; use your existing model tool to install them today.
Does the Organizer move files automatically?
No. Choose a folder, inspect the proposed organization, and approve the changes. Collisions and duplicate retention are checked as part of the flow, and you can undo the last organization during the session.
How does Activity differ from a simple CPU widget?
Activity combines subsystem views with per-app resource usage and local listening processes. It adds a Health view with memory pressure, swap, and thermal state, and keeps seven days of history so you can see what happened while you were away.
Can MacMonitor alert me about problems?
Yes, if you turn it on in Settings. Alerts are off by default. MacMonitor can notify you when memory pressure is critical for over a minute, free disk space drops below 10 GB, the CPU stays above 90% for five minutes, or macOS reports a Serious or Critical thermal state. Each alert fires at most once an hour, and alerts run while MacMonitor is open.
Does cleanup delete anything on its own?
No. Cleanup requires your action and a confirmation. Most items move to the Trash, where you can recover them until it is emptied, and files in the Trash still occupy space. Permanent actions are clearly labelled and include erasing items already in the Trash, removing local AI models, and erasing simulator data.
Can I undo a cleanup?
Yes. After a cleanup that moves items to the Trash, a Put Back banner returns everything from that cleanup to where it was in one click. It never overwrites a file that has since taken an item's place. Permanent actions, such as erasing items already in the Trash, cannot be put back and say so before you confirm.
How much does MacMonitor cost?
The first 50 purchases are offered at $4.99 USD. After those purchases, the regular one-time price is $19 USD. Availability of the introductory offer, tax, and the final total are shown at checkout.
How will buying and delivery work?
The Buy now button opens Lemon Squeezy's hosted checkout. After payment, your receipt includes your license key and a download link for the notarized Mac app. Open the app, enter the key once, and it activates on that Mac.
When can I download it?
Use the Buy now button to open Lemon Squeezy checkout. Check the product details and macOS requirement there before purchase; your receipt provides download access and license details.
Your Mac.
Under control.
See what is there. Understand what uses space.
Organize what matters. Review your next move.
