# MoreRoom vs OmniDiskSweeper

> MoreRoom vs OmniDiskSweeper in October 2026: a free size-sorted file list from The Omni Group vs a storage manager that explains what it finds.

- URL: https://moreroom.app/compare/moreroom-vs-omnidisksweeper
- Published: 2026-10-17
- Updated: 2026-10-17
- Publisher: MoreRoom (Yando Pte. Ltd.) — https://moreroom.app

## Short answer

Choose OmniDiskSweeper if you want a free, no-frills list of what is largest on your drive and you know what you can delete. Choose MoreRoom if you want folders recognised and explained, System Data broken down, and guided cleanup with Undo.

## TL;DR

- OmniDiskSweeper is a free app from The Omni Group that lists the files on a drive from largest to smallest.
- It lets you move items to the Trash or open them; it has been freeware since 2009.
- MoreRoom adds visual maps, 249 rules with safety badges, a System Data breakdown and storage history.
- MoreRoom requires macOS 15 Sequoia; recent OmniDiskSweeper builds require macOS 14.
- Both apps use the Trash rather than deleting permanently for ordinary files.

## Comparison table

|   | MoreRoom | OmniDiskSweeper |
| --- | --- | --- |
| Price | Free; Pro $19.99/year or $39.99 once | Free |
| Developer | Yando Pte. Ltd. | The Omni Group |
| Minimum macOS | macOS 15 Sequoia | Not stated on the main page; current test builds require macOS 14 |
| Where to get it | Direct download (signed and notarized) | Direct download from omnigroup.com |
| How it shows your disk | Treemap, rings and list views | Size-sorted list, largest to smallest |
| Known-folder explanations | 249 rules with “Safe to remove” / “Review first” badges | No |
| System Data breakdown | Yes | Not a stated feature |
| Extra tools | Storage Weather, Ghost space, Keep in the Cloud, app uninstaller | None stated |
| How files are removed | Trash first, with Undo; official tool commands are labelled permanent | Moved to the Trash |

OmniDiskSweeper does one thing simply: it lists everything on your drive from largest to smallest and lets you move items to the Trash or open them. It is free and made by The Omni Group. MoreRoom covers the same ground and then goes further — visual maps, explanations of what each folder is, a System Data breakdown and guided cleanup. If you already know your way around `~/Library`, OmniDiskSweeper may be all you need.

## What each app is

**OmniDiskSweeper** is a free utility from The Omni Group, the developer of OmniOutliner, OmniGraffle and OmniPlan. Omni describes it in one line: it “shows you the files on your drive, largest to smallest, and lets you quickly Trash or open them.” It became freeware in 2009. Omni's blog mentioned an update in September 2025, and as of October 2026 its test-build page lists a build from September 2026 that requires macOS 14. The main download page links to the latest version without stating its number or requirements.

**MoreRoom** is a native macOS storage manager by Yando Pte. Ltd., for macOS 15 Sequoia or later. It shows your disk as a treemap, rings or list; explains System Data, including local snapshots, swap, the sleep image, Preboot and Recovery; and recognises 249 known space hogs with “Safe to remove” or “Review first” badges and whether each comes back.

## Where OmniDiskSweeper is better

- **It is free.** There is no paid tier and nothing to upgrade to.
- **Simplicity.** A sorted list is quick to read and has almost no learning curve. Many experienced Mac users prefer exactly that.
- **A long-standing developer.** The Omni Group has offered OmniDiskSweeper for free since 2009 and has kept it available and updated.
- **macOS 14 support.** Recent builds run on macOS 14 Sonoma; MoreRoom needs macOS 15 Sequoia.
- **Few moving parts.** It is a single-purpose tool. If you want something you open, use and close, that is a plus.

## Where MoreRoom is better

- **It tells you what a folder is.** A sorted list tells you that something is 30 GB; MoreRoom tells you whether it is a rebuildable cache, an old simulator, a local AI model or something to keep. The explanations are also on the web in the [folder directory](https://moreroom.app/folders), for example [Homebrew downloads](https://moreroom.app/folders/homebrew-downloads) or [Ollama models](https://moreroom.app/folders/ai-ollama).
- **Visual maps.** The treemap and rings views make it easier to see proportions at a glance; the list view is there too.
- **System Data explained.** MoreRoom breaks down the System Data figure from Storage settings and explains why Finder and `df` disagree. See [What is System Data on a Mac?](https://moreroom.app/learn/what-is-system-data-mac)
- **Official commands where they exist.** For tools such as Homebrew, Docker, Xcode simulators and npm, deleting folders directly can confuse the tool. MoreRoom uses the tool's own command — for example `brew cleanup --prune=all` or `xcrun simctl delete` — and labels those steps as permanent. Everything else goes to the Trash first, with Undo.
- **Storage over time.** Storage Weather keeps a 30-day history, forecasts when the disk could fill and shows what grew this week. Optional low-space alerts and a desktop widget are free.
- **Ghost space and cloud downloads.** MoreRoom finds space held by deleted files an app still keeps open, and Keep in the Cloud removes local downloads of files that are already uploaded to iCloud Drive, Dropbox, OneDrive or Google Drive.
- **Guided cleanup in Pro.** A Collector to clean up in one go, Goal mode for freeing a specific amount safely, and Project hibernation for rebuildable folders like `node_modules`.

## Which should you choose?

### Choose OmniDiskSweeper if…

- you want a free, simple list of what is biggest;
- you know which folders are safe to remove;
- you run macOS 14 Sonoma.

### Choose MoreRoom if…

- you want to understand a large folder before deciding;
- System Data, developer tools or local AI models fill your disk;
- you want history, alerts or help freeing a specific amount of space.

### A word on caution

With any size-sorted view, the largest items are not always the safest to remove. Folders inside `~/Library` often belong to apps that expect them to exist. Our guide [How to free up space on a Mac](https://moreroom.app/learn/free-up-space-mac) lists the usual candidates and how to remove each one properly.

For more options, see [Best Mac storage cleaners in 2026](https://moreroom.app/compare/best-mac-storage-cleaners).

## FAQ

### Is OmniDiskSweeper still free?

Yes. The Omni Group made OmniDiskSweeper freeware in 2009 and still offers it as a free download from its website as of October 2026.

### Is OmniDiskSweeper still updated?

The Omni Group's blog noted an updated OmniDiskSweeper in September 2025, and its test-build page lists a newer build from September 2026 that requires macOS 14. The main download page does not state a version number.

### Does OmniDiskSweeper delete files permanently?

Its page says it lets you quickly Trash or open files, so ordinary deletions go to the Trash. Space is freed when you empty the Trash.

### What does MoreRoom add over a sorted list?

MoreRoom recognises 249 known space hogs and says what each is, whether it is safe to remove and whether it comes back. It also explains System Data and tracks free space over 30 days.

## Sources

- [OmniDiskSweeper (The Omni Group)](https://www.omnigroup.com/more) (accessed 2026-10-17)
- [OmniDiskSweeper becomes freeware (The Omni Group blog)](https://www.omnigroup.com/blog/OmniWeb_OmniDazzle_OmniDiskSweeper_and_OmniObjectMeter_now_freeware) (accessed 2026-10-17)
- [OmniDiskSweeper test builds (The Omni Group)](https://omnistaging.omnigroup.com/omnidisksweeper/) (accessed 2026-10-17)