Disk Space Visualizer by Tront

SpaceView

See where your disk space went. SpaceView by Tront (Trent Sterling) is a modern SpaceMonger clone built in Rust + egui: fast, tiny, themeable, and actually useful.

Download v0.16.2 GitHub Blog Post

Screenshots

SpaceView v0.16.2 native treemap in the Chrome Sunset theme, with outlined controls and readable labels

Captured from the native SpaceView v0.16.2 app using a synthetic filesystem fixture. These show the actual interface, with no personal filenames.

SpaceView age map: newest files glow, old junk fades, Deep Space theme with the Neon palette SpaceView by type: every block colored by extension, Aurora Sky theme with the Ocean palette SpaceView light mode, Golden Hour theme
SpaceView Top Files view: the biggest files on the drive, Vaporwave theme SpaceView Types view: space by extension, Tide Pool theme SpaceView treemap in the Matrix Rain theme with the Neon palette

Features

Everything you need to find what's eating your disk, nothing you don't.

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Treemap Layout

Squarified treemap algorithm packs folders and files into nested rectangles proportional to their size. Big files jump out immediately.

RE

Verified Rescans

Repeat NTFS scans reuse a saved folder plan and check current file metadata. Changed folders get fresh reads. Incomplete change history triggers a full scan.

5000x

Smooth Camera

Click to zoom into any folder. Smooth interpolation with zoom clamping from 1x to 5000x. Right-click or breadcrumbs to go back.

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Live Scanning

The treemap fills as files arrive, with live progress and working Pause, Resume and Cancel controls. Explore folders while the scan continues.

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Readable Controls

Stronger text contrast, outlined buttons and clear focus states across dark and light themes. Tile labels fit the space available.

EXE

Portable Windows App

One 7.8 MB executable. No installer or separate runtime. Download it and run it.

How It Works

Squarified Treemaps

The classic treemap algorithm splits a rectangle into sub-rectangles proportional to file sizes. The "squarified" variant optimizes the aspect ratios so you get fat squares instead of thin slivers - much easier to read and click. Each depth level nests inside its parent, so the spatial hierarchy matches your actual folder structure.

Fresh Results on Rescan

After a complete NTFS scan, SpaceView saves a compact traversal plan. On the next scan, it checks the Windows change journal and reads current file identities, sizes and timestamps before publishing the result. If the cache cannot be verified, it scans normally. Right-click Rescan to choose a Full scan at any time.

SpaceView verified rescan of a 2,003-file test fixture, showing zero folders read and 2,003 files reused

Native Rescan test: the folder structure was reused and all 2,003 files received current metadata checks. Scan times depend on your disk and folder structure.

By The Numbers

5

Views

Treemap, file list, largest files, extension totals and duplicates.

57

Regression Tests

Passing Rust checks for scanning, layout and cache validation.

22

Cache Scenarios

Native filesystem cases checked against fresh scans.

7.8 MB

Binary Size

No installer, no runtime dependencies. Just a single executable.

Download SpaceView

Download the Windows executable and run it. No installation needed. Release notes and the SHA-256 checksum are available on GitHub.

Download v0.16.2 View Source Release Notes