roomier

A local Mac disk cleaner for developers.

Make room without guessing.

Roomier is in development. No download yet.

See what your toolchain put on disk.

Find reclaimable space across developer caches, build artifacts, simulators, dependencies, and local runtimes. You decide what goes.

See the current build

Your disk, drawn to scale.

Step through folders, compare what is using space, and review each supported cleanup before anything moves.

Current Roomier development build showing a radial map for a sanitized DeveloperWorkspace fixture beside cleanup suggestions: 88.1 MB ready to stage and 75.5 MB separated for inspection.

Current Roomier development build using a sanitized test fixture. The interface and cleanup coverage are still being tested.

15% faster. Same exact scan result.

Across matched 21-run Release samples of a 52,553-node macOS SDK tree, Roomier cut the median scan from 0.2212 seconds to 0.1873 seconds. Every run returned the same file and directory counts, byte totals, access result, and completion state. Measured August 3, 2026 on the development Mac. Directory-heavy benchmark, not a whole-disk comparison.

Today, direct cleanup is limited to fixture-proven SwiftPM build data, unambiguous Git-ignored Web dependencies and default Next.js output, and metadata-proven Xcode project build data with no protected source or archive content. Shared tool containers, package source checkouts, archives, simulator data, and unproven families stay inspect-only or provider-managed.

Explain before clean

Know what it is before it goes.

Each recognized directory shows what created it, whether it can come back, and what recreating it may cost. Explanations help you decide; deterministic rules control what Roomier may offer to clean.

On-device AI explains. It never authorizes cleanup.

~/Library/Developer/Xcode/DerivedData

23.4 GB · 1,284 items · last build 2 days ago

Build intermediates and indexes that Xcode generates while you work. Xcode recreates them automatically the next time you build — at the cost of one slower first build.

Generated Recreatable Recreated by: Xcode build

Classified from filesystem evidence. Explained on-device.

Built to be trusted with your disk.

Fully local

Scanning, classification, and explanations happen on your Mac. No disk inventory is uploaded. No app account. No cloud dependency.

Evidence decides

Deterministic rules decide what is safe to suggest. On-device AI explains — it never authorizes. Anything unrecognized stays untouched.

Trash, not shred

Supported cleanup is staged for review, rechecked immediately before execution, then moved to Trash. You decide what goes.

Xcode & Derived Data

Metadata-proven project entries can move to Trash; the shared container, archives, and package checkouts stay out.

Simulators

Distinguishes simulator storage for review; it never equates age with safe cleanup.

Dependencies

Eligible SwiftPM .build and unambiguous Git-ignored node_modules can move to Trash.

Project build output

Verified default Next.js output can move to Trash; custom output and unproven build folders stay inspect-only.

Guides from the build

Your tools build more than apps.

Roomier's guides explain where developer storage comes from, what returns automatically, and which supported cleanup path belongs to each artifact.

First guide · in preparation

Free Xcode disk space safely

A versioned audit of DerivedData, Archives, DeviceSupport, simulator devices and runtimes, caches, and project build output—with a useful cleanup path even if you never install Roomier.

Preview the guide plan. It remains out of search results until its current-Xcode proof pass is complete.

Private by architecture

Your disk stays on your Mac.

Roomier scans, classifies, and explains on-device. The website, email list, support, and checkout use the separate services named in Privacy; they never receive your scan.

No app account. No disk uploads. Works with Wi-Fi off.

Explanations use Apple's on-device model. When it isn't available, Roomier's deterministic descriptions take over—scanning and supported cleanup never depend on it.

More room for the next build.

Roomier is in development. The official download route stays closed until release acceptance passes.