01
See the complete storage story at a glance
The treemap scales every block by real size, making the largest video, design source, delivery archive, reports, and smaller assets immediately comparable.
Disk Space VisualizerFile Review
See where a folder's space went before opening a single subfolder.
Disk Space Visualizer maps every scanned item into a block sized by its real footprint. Large videos and design sources dominate immediately, smaller folders remain visible, and every block supports drill-in, reveal, or deliberate Trash actions.
Start the 14-day trial in the app. No payment method is required to try Foldout.
Local tool processingFiles and tool work stay on your Mac.
100+ focused toolsFiles, PDFs, media, capture, and developer workflows.
Settings ready to goFormats, dimensions, and other values carry into the tool.
Try everything first14 days in the app. No payment method required.
This tool is a local inspection and workflow utility for files, settings, and development tasks you control. It reviews selected local information only; Foldout does not connect to other machines, manage accounts, monitor networks, or provide a live service.
What it does
Turn folder size into an interactive map where visual area equals storage impact.
Compare files and folders by real size at a glance.
Spot the largest videos, archives, and design sources immediately.
Keep dense clusters of smaller items visible instead of hiding them.
Click folders to drill into their contents.
Reveal or move a chosen block to Trash from its context menu.
Storage at visual scale
Let the largest files and folders claim the attention their size deserves.
A complete treemap proves both the dominant assets and the smaller clusters that still matter.
02
Drill into a large folder without losing your place
Open a folder block to redraw the map around its contents while the breadcrumb preserves the route back to the complete storage view.
03
Review a storage action before anything moves
A selected block keeps its exact name and size in context while Foldout asks for confirmation before sending it to Trash, where it remains recoverable.
Why it belongs
Why Disk Space Visualizer earns a place in the toolbox.
The practical details that make this job faster, clearer, or safer than doing it by hand.
Size becomes visual priority
The items with the greatest storage impact receive the largest blocks, removing guesswork from the first review.
The whole folder still fits
Treemap packing preserves smaller files and nested folders so the scan is not reduced to only a top-ten list.
Every block remains actionable
Drill into a folder or use contextual actions to reveal or deliberately trash the selected item.
How to use it
From opening the tool to saving the result.
- 01
Choose a folder.
- 02
Read the treemap from largest block to smallest.
- 03
Drill into any folder that needs more context.
- 04
Reveal or deliberately trash a selected item.
Questions
Before you try Disk Space Visualizer
Does the map change files by itself?
No. The treemap is for inspection until you choose an action.
Related tools