CoreTend
Read-only view of what fills a Mac: disk usage, cleanup candidates, largest items, app leftovers.
Runs on your machine from its package; the steps are below.
What it does
- Reads
- Writes
- High impact
At most: moves money, runs code or commands, deletes data, or sends messages for you.
What it costs
FreeOdel charges nothing per call. The publisher may charge for its own service.
Runs locally over stdio
This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).
Run
npx -y coretend
MCP client config
{
"mcpServers": {
"coretend": {
"command": "npx",
"args": [
"-y",
"coretend"
]
}
}
}
CoreTend
See what fills your Mac. Clear it safely.
Your whole Mac in one click, caches and developer files cleaned in one review, apps uninstalled completely — everything goes to the Trash, with Undo.
Website · Download · What's new in 2.2 · Français
Four spaces
| Space | The question it answers |
|---|---|
| Home | How is my Mac, and what can I do now? The space CoreTend can give back, one button away. |
| Space | What takes the space? A map of your home folder, large files and exact duplicates. |
| Clean | What can I remove safely? 14 rules read at once — caches, logs, Xcode, simulators, npm, pnpm, Gradle, Cargo, Mail — safe items ticked, one review, Undo. |
| Apps | Which apps take space or start on their own? Uninstall completely: the app and the files it left. |
History of every scan and move stays at the sidebar's foot.
Around the Mac
- Shortcuts and Siri: Get Free Space, Get Space to Clear, Open CoreTend (read and open only).
- Widget: free space and what the last Clean found.
- Finder: right-click a folder › Analyze with CoreTend; or drop it on the Dock icon.
- System features (optional): tidy
/Library/Cachesand turn third-party system services on or off through a small signed helper, installed only when you turn it on in Settings › System (decision 0006).
What CoreTend will never do
- Erase anything for good. Moves go to the macOS Trash after your review; CoreTend checks each item again just before, and Undo puts it back.
- Scare you. No health score, no alarm, no invented figure.
- Watch you. No account, no telemetry. The only request asks this site whether an update exists, and you can turn it off in Settings.
Install
- Download
CoreTend-2.2.0-universal.dmg(notarized) from Releases or the site. - Homebrew:
brew install --cask ahmetbsbnr/coretend/coretend(also linkscoretendin your PATH) - Terminal and AI assistants:
coretendon npm —npx coretend clean·npx -y coretend mcp; see CLI.md.
macOS 14 Sonoma or later, Apple silicon or Intel. English and French (follows macOS). CoreTend asks for Full Disk Access once, to read Mail, Safari and app data; without it, it reads what macOS allows.
Build from source
swift build --product CoreTendApp # the app
swift build --product CoreTendCLI # a read-only command-line tool
make qualify # every test, gate and check
make package-local # an unsigned CoreTend.app in Artifacts/
Swift 6, SwiftPM; one runtime dependency, Sparkle, for signed updates. The code is organised in modules: DesignSystem (the Serre
design and the living greenhouse), ScanCore (read-only scanning), SafetyCore (the only code that
may move a file — to the Trash), Domain, Persistence, AppShell and the app itself, plus
the widget (CoreTendWidget), the Finder menu (CoreTendFinder) and the optional system helper
(CoreTendHelper, HelperProtocol), which link no other package.
Contributing
Read CONTRIBUTING.md and GOVERNANCE. Security issues: SECURITY.md. Code under Apache 2.0, documentation under CC BY 4.0.
