Why it matched
See the exact path, recognized tool, directory rule, and evidence strength behind every result.
Explainable developer storage · macOS 14+
Clean developer storage. Know what is safe.
SpaceLint is a safe disk space manager for Mac developers and local AI users. It finds storage used by Xcode, package managers, Docker, editors, models, and uninstalled apps—then explains why each item matched, what removal changes, whether it can be rebuilt, and how to recover it.
Free foreverNo license key requiredNo trial clock
Free scansEvery supported category, path, size, risk, and explanation.
7 daysDefault quarantine with exact-path recovery before permanent removal.
3 MacsOne SpaceLint Pro license for your personal development machines.
Local firstFile inspection and cleanup decisions stay on your Mac.
Storage advice with receipts.
A large folder is not automatically junk. SpaceLint combines exact rules, activity, ownership, running-state checks, and recovery information so you can make the decision.
What happens next
Know whether a tool will rebuild the item, re-download it, lose history, or require a new backup.
Protected by default
Ambiguous data, running apps, shared containers, Docker volumes, and unreadable items stay unselected or display-only.
Not just modified dates
Project dependencies use observed activity thresholds; installed apps use available Spotlight last-used metadata.
Undo before regret
Eligible files move to a same-volume quarantine and restore only when the original path is still safe.
Delete immediately
Skip quarantine when capacity is critical, behind a separate typed confirmation that makes irreversibility explicit.
Built around the places developers actually lose space.
SpaceLint understands tool semantics instead of treating your Library folder as one generic cache bucket.
Xcode and projects
Packages, Docker, and editors
AI models and device backups
Apps and exact leftovers
Read first. Review second. Change last.
The scan never cleans automatically. Every eligible file operation becomes an immutable plan and is checked again before the Mac changes.
Scan locally
Inspect known locations and user-added project folders without uploading file names or contents.
Review evidence
Compare size, activity, reason, impact, risk, rebuildability, and recovery before selecting anything.
Quarantine
Move eligible items on the same volume for seven days while preserving their exact restore path.
Restore or purge
Undo safely, or permanently remove after a fresh identity check and explicit typed confirmation.
Practical Mac storage guides.
Understand what each developer tool stores, what can be rebuilt, and what should be reviewed before removal.
Clean DerivedData safely
What Xcode stores there, what rebuilding costs, and why Archives and DeviceSupport need different treatment.
Read the guide →Find unused node_modules
Use project activity and lockfiles to separate rebuildable dependencies from active work.
Read the guide →Reduce Docker disk usage
Distinguish images, stopped containers, build cache, and volumes before reclaiming space.
Read the guide →Manage model storage
Understand Ollama and Hugging Face storage without treating shared model data as generic cache.
Read the guide →Uninstall apps and leftovers
Why bundle identity matters and why shared containers should not be selected by guesswork.
Read the guide →Simulators and DeviceSupport
Know the difference between unavailable runtimes, simulator devices, and physical-device symbols.
Read the guide →Free forever. Pro unlocks advanced cleanup.
SpaceLint Free has no trial clock and needs no license key. Scan every category and use individual Xcode DerivedData cleanup for as long as you want; upgrade only when you need the broader Pro workflow.
Free
$0forever
- All supported storage scans
- Complete evidence, paths, and risk
- Menu bar resource panel
- One DerivedData cleanup at a time
- History and Recovery always available
SpaceLint Pro
$14.99launch price
- Everything in Free
- Batch Cleanup Plans
- Trusted Cleanup Rules for low-risk rebuildable matches
- Project dependencies and build output cleanup
- Package, editor, Docker, model, and backup actions where eligible
- App uninstall and exact leftover review
- Custom project scan locations
- Up to 3 personal Macs
Questions worth asking before cleanup.
SpaceLint avoids performance promises and scare scores. Its job is to make storage decisions understandable and reversible.
Does quarantine free disk space?
No. Quarantined items still occupy the same disk. Use immediate permanent deletion only when you need capacity now and accept that the action cannot be undone.
Will SpaceLint delete source code?
Project scanning recognizes a narrow allowlist of generated folders and stops at those directories. Unknown folders and source trees are not cleanup candidates.
Does it need Full Disk Access?
Most categories do not. macOS may require Full Disk Access for local iPhone and iPad backups. SpaceLint explains the protected path and links to System Settings.
Do I need a license key to use SpaceLint?
No. SpaceLint Free is permanent, has no trial countdown, and does not ask for activation. A license key is required only when you choose to unlock Pro cleanup workflows.
Are local AI models deleted automatically?
No. Model storage is reported with tool-aware information. Protected or semantically ambiguous model data remains display-only until a safe operation exists.
What information leaves my Mac?
Scanning and cleanup stay local. Checkout happens on Dodo Payments. License activation sends only the entered license key and an app-generated activation identifier.
Can I recover after my Pro license expires?
Yes. History, exact restore, and management of already quarantined data are never locked behind the license state.
More focused Mac tools from Quartz.
SpaceLint is one of five private, focused Mac utilities from the same independent studio.
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Preview Markdown locally with Quick Look, Mermaid, Math/LaTeX, and no remote rendering.
Preview Markdown with PeekMark → Network diagnosticsQuartz Probe
Diagnose DNS, TLS, routes, HTTP, ports, and APIs in one Mac workspace.
Diagnose networks with Quartz Probe →SpaceLint Pro · Launch price
Make room without guessing.
$14.99 once. Up to three personal Macs. Unlimited scanning stays free.