01
Go after the big stuff
Start with your largest files and oldest videos. Not ten thousand tiny cache files that your apps will rebuild by Friday.
Mac storage, finally explained
Your Mac isn’t full of junk. It’s full of your stuff.
Cleaners clear caches that grow right back. Super Duper Space finds what’s really eating your disk: years of Messages videos, copies of photos you already saved, and app data nobody explained. Then it shows you what’s safe to delete.
Private beta for macOS 14 and later. We’ll only email when there’s something to try. Privacy
Why not just use a cleaner?
Runs only onYour Mac
FindsVideos you already saved
Why your Mac is still full
Cleaners delete caches. Caches grow back.
One-click cleaners hunt for “junk” like caches, logs, and leftovers. You win back a few gigabytes, and your apps rebuild them within days. The space that stays gone is the stuff you made and saved. A cleaner won’t touch it, because it can’t tell what matters to you. We help you decide.
02
Know what it is first
Every item tells you which app made it, why it keeps growing, and what happens if you delete it. Even the mystery “System Data” pile.
03
Delete with proof
Already saved that video to Photos? We show you both copies side by side, so you can let one go without a second thought.
Try this now
How much is Messages using on your Mac?
Check in 30 seconds. No download needed.
- 1
Open the Apple menu and choose System Settings.
- 2
Click General, then Storage.
- 3
Give the bars a moment to fill in. Then find Messages in the list.
More than a few gigabytes? That’s mostly videos and photos people sent you. It’s exactly what Super Duper Space helps you clear.
Get early accessFrom our own test Mac
One Mac. 18.7 GB of forgotten Messages videos.
22,225Messages attachments found and sorted
18.71 GBof videos lined up for review
218 videos(2.2 GB) already saved in Photos
1,398 filesdeleted, then checked and confirmed gone
Numbers from our development Mac. Yours will be different. macOS shares and compresses storage, so the space you get back can be less than a file’s size.
Super Duper Space vs. one-click cleaners
A cleaner guesses. We show you.
Most cleaners give you one big number and one big button. That’s fine for caches. It’s scary when it’s your videos.
Clear caches that come right back Find the big files that stay gone
One big “junk” number What each item is, and why it’s there
Messages is one giant folder Every video, photo, and GIF, one at a time
Click once and hope A holding area, Undo, then a recheck
How it works
From “my disk is full” to done.
- 1
Scan your Mac
The scan runs on your Mac. If macOS blocks a folder, we tell you which one and how to open it up.
- 2
See what’s big, and why
Your biggest items come first. Each one gets a plain-English note: what it is, why it grows, and what deleting it does.
- 3
Pick what goes
Watch videos, check Photos matches, and clear out copies. You decide every time.
- 4
Delete, undo, confirm
Files go to a holding area first. When you empty it, we rescan and show you what changed.
Today, Super Duper Space deletes Messages attachments for you. For everything else, it tells you what it is and how to clean it up in the app that owns it.
Private by design
Your files never leave your Mac.
No account. No analytics. We never upload your scan, read your texts, or send your photos anywhere. Super Duper Space asks for access only when a scan needs it.
Questions
The things people ask us first.
How is this different from CleanMyMac?
One-click cleaners are good at clearing caches and leftovers. Those come back on their own. Super Duper Space goes after the big things: years of Messages videos, copies of what’s already in Photos, and app data nobody explained. It tells you what each one is before anything gets deleted.
Why does my Mac say “System Data” is huge?
System Data is where macOS puts everything it doesn’t label: caches, app data, local backups, and more. We break it down by app so you can see what’s inside. Our total won’t match Apple’s exactly, but you’ll finally see the parts.
Is this a one-click cleaner?
No, and that’s on purpose. You see what something is, then you decide. We just make deciding fast.
What can it delete today?
Messages videos, photos, and attachments, with Undo. For everything else, we tell you what it is and how to clean it up in the app that owns it. More cleanup types are on the way.
Will it delete messages from my iPhone too?
No. It removes the file stored on your Mac. Your conversations stay put. To delete a message on every device, use the Messages app. If you use Messages in iCloud, a file may download again later.
Does it upload my files?
No. Your scan, filenames, and media stay on your Mac. There’s no account and no analytics.
Early access
Get your space back. Keep what matters.
Join the private beta. Tell us what’s filling your Mac, and help shape what we build next.
macOS 14 and later. We’ll only use your email for Super Duper Space news. Privacy