See what's eating your Mac — down to the byte
One scan of your whole drive and every gigabyte is explained — free, forever. Nine visualizers, search, large files and a live monitor with no license. Add DiskInsight Pro once when you want one-click cleanup. All native, all local.
One-time payment · 15-day money-back guarantee
macOS 14+ · Apple Silicon & Intel · Analyze free with no key — paste a Pro license whenever you want cleanup
- Scan your whole drive free — no trial, no watermark, no timer
- Unlock cleanup once: no subscription, no account, no ads
From a real full-Mac scan of a 228.3 GB drive. Your results will differ.
The whole disk, made legible
DiskInsight maps every byte once, then lets you switch instantly between visualizers — from a treemap of your whole drive down to a single file.
Treemap
Squarified map of every file
Folders
Expand folder by folder
List view
Flat, sortable, searchable
Top sizes
The biggest items, ranked
Age map
Bytes by last-modified date
Sunburst
Rings of folder depth
Flame graph
Follows the long tail deep
Bubbles
One circle per folder
Mind map
Branches, parent kept in view
75,129 extra copies. Grouped. Previewed. One scan.
DiskInsight hashes file contents — not just names — so it finds duplicates that macOS and Finder silently skip. Every group shows its size and what you'd reclaim.
- Content-addressed scanning catches copies with different names and folders.
- Preview any group before you act — keep the copy you want.
- Reclaimable bytes per group, sorted by what's worth your time.
What's safe to delete, calculated before you touch it
Quick Wins ranks what actually matters by reclaimable bytes × safety. DerivedData, node_modules, dist folders — each with a plain-language reason and the exact bytes.
- 8 candidates on a typical dev machine — all removable, all regenerable.
- Byte counts computed in advance; nothing is deleted until you review it.
- Everything goes to the Trash first. Undo anytime.
The build junk other tools can't see
Xcode DerivedData, Archives, simulators, SwiftPM, CocoaPods, Gradle, npm/pnpm/Yarn, pip — DiskInsight finds every dev cache on your machine and tells you its byte cost.
- 20 curated dev locations plus a deep sweep of your home folder.
- One pass reclaimed 68.2 GB on a real machine.
- Cache-aware: it knows what's regenerable, so you never lose work.
Uninstall the app and everything it left behind
Dragging an app to the Trash leaves most of it behind. DiskInsight finds the bundle plus Application Support, Containers, Caches, Preferences and WebKit data — and removes them in one deliberate move.
- True footprint per app: bundle + every helper it scattered.
- Confirmation dialog before anything moves.
- Everything lands in the Trash, never permanently.
Find any file on your Mac in seconds
Search the whole scan by name, type, or size — with filters that rank the best matches first. Open the floating search from anywhere with ⌘⇧Space.
- Best matches ranked by size, so you spend time on the files that matter.
- Filter by file type, category and age before you even type.
- Jump straight to results in the treemap, or open files from the list.
Turn "Screen Shot 2026-08-14 at 09.31.45" into a name you'll actually find
Point DiskInsight at a folder of screenshots and it OCRs each one, proposes clean descriptive names, and renames everything in one pass — with a side-by-side review before anything moves.
- OCR reads each screenshot so the new name matches what's on screen.
- Suggestions shown next to the old name — approve or edit any of them.
- Runs entirely on your Mac; the images never leave the machine.
Beyond the treemap
Snapshot your disk and compare it later. Search any file. Watch your Mac work. All of it native, all of it local.
Snapshots & growth
Save a picture of your disk and compare it later. See exactly which folders grew and what to reclaim.
System monitor
Live CPU, memory, network and battery with sparklines plus a top-processes table — sampled every second, on your machine.
File-type & bloat filters
Narrow by video, audio, code or archives — or collapse node_modules and build trees so real data stays visible.
Logical vs on-disk size
See logical size and "size on disk" together, so clones and sparse files stop confusing you.
Staged cleanup
Everything you mark for removal waits in one review list. Nothing is trashed until you say so.
Exportable by design
Scan results, snapshots and settings are local files you own. Uninstalling DiskInsight removes every trace.
Your build cache is eating your disk
Xcode, npm, CocoaPods, Gradle — they all leave gigabytes behind. DiskInsight hunts down the exact bytes so you can reclaim them deliberately.
Xcode & Swift
DerivedData, Archives, simulators, SwiftPM — each with its byte cost, one click to Trash.
Node, Python & Ruby
npm/pnpm/Yarn caches, pip, gem caches and node_modules bloat.
Go, Rust & .NET
go-build and module caches, Cargo registries, NuGet packages — content-addressable stores that silently grow.
Gradle, Maven & more
Gradle caches, the Maven repository, CocoaPods pods, Carthage, SwiftPM and pnpm stores.
Package-manager stores
Stale versions that linger in content-addressable stores for years — shown as real bytes.
Deep home sweep
Stray .build, target, dist and node_modules the package managers no longer track.
100% local. Nothing leaves your Mac.
DiskInsight has no account, no cloud, no analytics and no telemetry. Scanning, search indexes, snapshots and cleanup all run on your machine — offline or online, it doesn't matter.
- No background process phones home. No "phoning home", period.
- Snapshots and scan data live only in your app support folder.
- No crash tracking, no usage stats, no analytics SDKs.
- Perfect for work laptops under NDA and people who just value privacy.
Clean up without the fear
DiskInsight treats your data as precious. That's why cleanup always goes to the macOS Trash — never permanent, always inspectable.
- Stage anything from the treemap, list or duplicates view with a right-click.
- One "Move to Trash" sends everything to the macOS Trash — undoable until you empty it.
- Every destructive action asks for confirmation. No background deletion, ever.
- Quick Wins computes exactly how many bytes each cleanup frees before you commit.
From first scan to reclaimed space in four steps
Download free
Grab the same build everyone uses. No key, no sign-up, no trial timer — analysis works from the first launch.
Scan
Choose a folder, home, or the whole Mac. A parallel scanner maps it fast — millions of files in minutes, with a live progress card.
See
Ride the treemap, run the Quick Wins report, watch the live monitor. Every byte explained — that's free, forever.
Unlock Pro
When you want one-click cleanup, paste a license key once. No reinstall, no re-scan — the whole app unlocks on that Mac.
Know what's taking the space
Five plain-language guides on the exact things DiskInsight finds — read them all for nothing.
How to free up disk space
The built-in methods, what each one hides, and the gaps they leave behind.
Read the guide →Find duplicate files on a Mac
Why Finder misses most duplicates — and how to find the real ones.
Read the guide →Clean Xcode DerivedData
Reclaim gigabytes of build cache without breaking your next build.
Read the guide →What is System Data?
The category macOS will not open up — what it is and how to clear it.
Read the guide →DiskInsight vs DaisyDisk & CleanMyMac
An honest comparison — including the gaps in everything else.
Read the guide →Free to analyze. Once to clean.
Analyze your whole drive forever at $0. Unlock Pro with a single payment — no subscription, no account, no upsell.
DiskInsight Free
Scan any drive or folder and see every byte explained. No trial, no watermark.
- Full scan — all nine visualizers
- Search, find large files, file & bloat filters
- Live system monitor
- Quick Wins report — the bytes you can reclaim, safely
- Same build as Pro — paste a key anytime to unlock, no reinstall
DiskInsight Pro
Launch price for the first 100 copies. Own it forever — one payment, all 1.x updates included.
- One-click Quick Wins cleanup, staged to the Trash
- Dev Cache Cleaner for Xcode, npm, CocoaPods & Gradle
- Duplicate finder and app uninstaller
- Snapshots & growth, screenshot renamer
- Every 1.x update, free — forever
Your key arrives on screen and by email the moment the payment clears. Secure checkout via DodoPayments. Bought already? Download and unlock.
🔒 15-day money-back guarantee — try DiskInsight Pro on your real Mac for two weeks; if it isn't for you, we refund the full $9.99, no questions.
Questions, answered honestly
Does DiskInsight send my data anywhere?
No. DiskInsight is 100% local. Scanning, search, snapshot diffing and cleanup all run on your Mac. There is no account, no cloud sync, no analytics SDK and no telemetry. If you deny it network access entirely, nothing changes.
Is DiskInsight free? And how much does Pro cost?
Analyzing is free forever — the scanner, all nine visualizers, search, large files and the live monitor need no license. DiskInsight Pro is Launch price for the first 100 copies at 50% off — $9.99 one-time, normally $19.99. That buys a lifetime license for one Mac; you pay once, keep it forever, and every 1.x update is included.
How do I get my license key?
Checkout is handled by DodoPayments. The moment your payment clears, your license key and the download link appear on the confirmation screen and are emailed to you.
What developer caches can it clean?
Dev Cache Cleaner targets Xcode DerivedData, Archives and iOS simulators, SwiftPM, CocoaPods, Gradle, npm/pnpm/Yarn, pip, go-build and more — plus a deep sweep of your home folder for stray build directories.
Does cleanup permanently delete files?
Never in the background. Everything is staged into a review list first, then moved to the macOS Trash. You can undo any cleanup until you empty the Trash yourself.
Can I remove an app and all its leftovers?
Yes. The App Uninstaller finds the bundle plus its Application Support, Containers, Caches, Preferences and WebKit data in one deliberate move, with a confirmation dialog first.
My Mac says 8 GB. DiskInsight found 22,502 duplicate groups — is that realistic?
Yes. Duplicate files are far more common than people expect, especially on long-lived machines with duplicated libraries, old downloads re-saved, and two generations of an app in the same folder. DiskInsight shows them all and only counts groups you can preview before acting.
Is this a subscription?
No. One payment, a lifetime license, all 1.x updates included. No recurring fee, no account, no upgrade nagging.
Your Mac is hiding gigabytes. Start free.
Analyze free forever · Unlock Pro once · No account, no cloud, no catch.