Mob Dev Cleaner app icon

Your Mac is full of
build leftovers.

Mob Dev Cleaner finds the gigabytes that Xcode, iOS simulators, Android Studio, Gradle and node_modules quietly pile up, and clears them safely in a couple of clicks.

Download for Mac
Free · Version 0.1.1 · 2.3 MB · macOS 14 Sonoma or later · Apple silicon & Intel · Notarized by Apple
80.8 GB
in simulators, SDKs and emulators
121.6 GB
of node_modules, build and Pods in 70 projects
44.7 GB
of caches, logs and tool downloads
Found by the first scan on one real developer Mac.
Features

Built for people who build apps.

General cleaners stop at browser caches. Mob Dev Cleaner understands Xcode, Android Studio, Flutter, React Native and Node, the tools that actually fill a developer's disk.

Smart Scan

One button scans caches, logs, Xcode DerivedData, Gradle, npm, Dart and the Trash. Safe items are pre-selected. Review the rest, then clean.

Developer Tools

See every iOS simulator runtime, simulator device, Android NDK, system image and emulator with its size and when you last used it.

  • “Select old” keeps the newest version
  • Running simulators are protected

Project Junk

Finds node_modules, build, Pods, .dart_tool, .gradle and .next in old projects, including on external drives. Filter by “not touched in 6 months”.

Space Lens

A bubble map of any folder or drive, sized by what it holds. Click to dive in, tick what you don't need, and move it to the Trash.

Menu bar & alerts

Free space at a glance, a one-click Quick Clean for safe items, and a heads-up before your disk runs low.

Private by design

Everything runs on your Mac. No account, no tracking, no uploads. It never reads your files, it only measures folder sizes.

Safety

Cleans the junk. Never your work.

Every item is labelled, explained in plain words, and handled the right way.

Safe

Caches, logs and build output

Pre-selected and deleted. Apps and build tools recreate them the next time they need them.

Review

Archives, AI models, old settings

Never pre-selected. If you choose them they go to the Trash, so you can restore them.

Your picks

Files you select in Space Lens

Always moved to the Trash, never deleted outright.

Never

Documents, Desktop, Photos, Mail, Messages, Keychains, iCloud

Blocked in the app's code. No scan or rule can touch them.

Install

Ready in a minute.

Signed with an Apple Developer ID and notarized by Apple, so it opens without warnings.

Download & open

Open MobDevCleaner-0.1.1.dmg and drag Mob Dev Cleaner into Applications.

Allow Full Disk Access

System Settings → Privacy & Security → Full Disk Access → turn on Mob Dev Cleaner. This lets the scan reach every cache folder.

Scan & clean

Press Scan, check the results, and press Clean. Most people get back tens of gigabytes the first time.

FAQ

Questions

Is it safe to delete these caches?

Yes. Things like Xcode DerivedData, Gradle caches and node_modules are rebuilt automatically. The only cost is that your next build or install takes a little longer while they download or compile again.

Why isn't it on the Mac App Store?

App Store apps must run in a sandbox that blocks access to other apps' folders, and that's exactly where developer junk lives. Like most serious Mac cleaners, Mob Dev Cleaner is distributed directly, signed and notarized by Apple.

Does it send any data anywhere?

No. The app has no account and no analytics, and it doesn't need the internet to work.

Why do I need Full Disk Access?

macOS protects some Library folders. Without access the scan still works but skips those folders and tells you which ones.

Will deleting a simulator remove my apps' data?

Yes. Deleting a simulator device removes the apps and data installed on it. Runtimes and SDKs can be downloaded again from Xcode or Android Studio. The app marks the newest version of each and never touches a simulator that's running.

Which Macs are supported?

macOS 14 Sonoma or later, on both Apple silicon and Intel Macs.

Get your disk space back.

Free download for macOS. No account needed.

Download Mob Dev Cleaner 0.1.1
SHA-256: 467843df8bef5986f8f865e1e3b262860684c80f796905472c378a88190e5acc