Your Mac, looked after

Your Mac is the part of OneMacTools that looks after the files and space on your Mac, rather than working on files you choose: Mac Clean Up (with Duplicates, the System Data review and Explore Disk), Mac Health, Dev & Agents, AI Space, Downloaded From and Watch Folders. They sit together in the sidebar under Your Mac.

Yes. Nothing is deleted outright: files go to the Trash, and History has a Put Back button. Duplicates are matched by their content, you choose which copy to keep, look-alike photos are never ticked for you, and files stored only in iCloud are skipped so nothing gets downloaded. For big videos and old screenshots you can choose Shrink instead.

Identical files are matched by their content, not their names, and OneMacTools suggests keeping the oldest copy. Click any other copy to keep that one instead. Look-alike photos (bursts, edits and re-saved copies, found with Apple's Vision) suggest keeping the largest, and are never ticked for you.

macOS lumps a lot into System Data. OneMacTools splits it into parts you can recognise, and for App data and Everything else it lists each folder with what it is: leftovers from apps you've deleted, caches that rebuild themselves, old iPhone and iPad backups, Docker and simulator disks. Only leftovers, caches and old backups can be moved to the Trash; everything else is explained and can be shown in Finder.

Mac Health shows what each app costs your Mac: memory, CPU, power, disk and network, with every helper process counted under the app that started it, so Chrome is one row instead of forty. A line at the top names any problem and the app behind it, like “Busy: Xcode has used 6 cores for 12 minutes” or “Memory is tight: Chrome is using 9 GB”. It also shows memory by type, every drive's free space, battery health and cycle count, the batteries of connected AirPods, keyboards and mice, and which apps are keeping the Mac awake. Copy Report puts it all on the clipboard as text.

It never quits anything by itself. Quit asks first and lets the app save your work; Force Quit asks again. macOS's own processes are never offered. It only reads figures while Mac Health, a menu bar readout or its dropdown is showing, and it reads them on your Mac: nothing is sent anywhere.

Yes. In Mac Health click Show in Menu Bar, or choose readouts in Settings › Menu Bar Readouts: CPU, memory, free disk space, network and battery, each as a number, a small graph or both, in the order you like, with a compact size for smaller screens. A reading turns red when the CPU is above 90%, memory is under pressure, the disk is nearly full or the battery is low. Click one, or press ⌃⌥⌘M from any app, for every figure and the busiest apps.

Yes. While OneMacTools is running it records a reading every 30 seconds — the Mac's CPU, memory, disk, network, battery and heat, and each app's share — kept per minute for two days and per hour after that, for 30 days by default (up to a year in Settings › History). The History tab charts it; click any spike to see the apps behind it, see the top apps and the heaviest app hour by hour, or export it as CSV. Turn on Open at Login to keep it recording after a restart. It's one file on your Mac, and Delete History clears it.

When an app keeps the CPU busy for 10 minutes, keeps growing in memory, writes heavily to disk or uses the network heavily, and when memory pressure stays high, the disk is nearly full, the battery is low or the Mac runs hot. Each alert names the app, with Quit… (it still asks first) and Mute This App buttons, and repeats at most once an hour. You can switch each off, and add your own in Settings › Alerts — for example “Chrome above 8 GB for 5 minutes” or “free disk below 20 GB”.

Yes, in Ask (⌘K): “what drained my battery today?”, “what slowed my Mac down this morning?”, “what used the network yesterday?”, “what is mdworker?”. The answer comes from Mac Health's history on your Mac, worded by Apple Intelligence when it's on, with the figures and a chart underneath so you can check it. AI assistants connected over MCP can ask the same questions.

Dev & Agents shows what developers and AI agents leave running. Agents lists every Claude Code, Codex, Gemini CLI, Aider, Cursor Agent and opencode session with its project folder, how long it has run and everything it started. Dev Servers groups your running servers by project with their ports (search “what's on port 3000?”) and flags ones that have sat idle. Docker shows containers and the space images and build caches take, with a clean-up for each. Project Files lists node_modules, .next, Rust target, Python environments and other build folders — only when the file that rebuilds them is beside them. Stopping and clearing always asks first.

Yes, over MCP, once you turn it on in Settings › AI Assistants (it's off until you do). One click adds OneMacTools to Claude Desktop, Claude Code, Cursor or Codex, after backing up their settings file. Assistants can then read Mac Health, dev servers, agent sessions, Docker, AI Space and storage, and find files in plain words. To run a tool, quit an app, stop a process or container, or move files to the Trash, they have to ask: OneMacTools opens a window showing exactly what will happen, and nothing runs until you click Allow.

Every 30 seconds it checks your own developer processes — dev servers, scripts and what AI agents start, never macOS or an app with a window. It sends a notification with a Stop button when one uses a full core for 10 minutes, grows by a gigabyte in an hour, or sits idle on a port for a day. In Settings you can let it stop busy processes after 15 minutes to an hour and idle servers after 1 to 7 days; until you do, it only tells you.

In Mac Clean Up's storage panel, Explore Disk shows every folder by size, biggest first, starting at your home folder or any drive, and you can open any folder to go deeper. Each one is labelled Yours, App data, Cache, Build files, Apps or macOS. Only your own files, caches and build folders can be moved to the Trash from there, after a confirmation.

AI Space (⇧⌘I) shows what AI apps and tools keep on your Mac: Cursor, Claude, Claude Code, ChatGPT and Codex, Windsurf, VS Code and Copilot, Perplexity, Gemini CLI, Zed, Ollama, LM Studio, Hugging Face models and more. Each folder is labelled as a cache, logs, chat history, models that download again, or the app's own settings, with its size, so you can see where the gigabytes went.

Caches and logs are rebuilt automatically, so they're ticked for you. Chat history and downloaded models are never ticked: clearing them removes those conversations from the app, or means downloading the model again. Settings and sign-in are never offered, an app's caches can't be cleared while it's open, and everything goes to the Trash with Put Back in History. Folders left by AI apps you've already deleted are shown as leftovers.

macOS keeps a note of the web address (and the app) each download came from. OneMacTools reads it to group your files under Gmail, WhatsApp, ChatGPT, Canva, X, Slack, AirDrop, browser extensions or the website, on the Downloaded From page (⇧⌘J). You can automate a source with a Watch Folder, for example converting every WhatsApp photo to JPEG.

Pick a folder and a tool, and every new file that lands in that folder is processed automatically, for example converting every HEIC photo to JPEG or beautifying every screenshot. Files that were already there are left alone, half-finished downloads are skipped, and originals can be moved into a Processed folder.