Strata GitHub
Free & open source · Windows 10/11 · Linux

See what fills your disk, then clean it up.

Strata maps every file on a drive as a block sized by its bytes. Spot the 48 GB recording you forgot about, review cleanup suggestions with reasons, and send them to the Recycle Bin. A modern take on WinDirStat.

Download StrataView source
MIT licenseNo accountNo telemetryWorks offline
Strata's explorer: a treemap of a drive, the folder tree, file types and the selected file's details
Features

From a full drive to free space in four steps.

Scan

  • Fast scan reads the NTFS master file table directly, typically 10–20× faster than walking folders.
  • Multi-threaded walk everywhere else: ext4, Btrfs, XFS, ZFS, exFAT, network shares.
  • Live progress with pause, resume and partial results.

Map

  • Cushion-shaded treemap, sunburst and columns views of the same data.
  • Folder tree sorted by size, kept in sync with the map.
  • A file-type legend that lights up a type on the map.

Find

  • Search by name, glob, size and type.
  • Smart views: largest files, duplicates verified by content, untouched for a year, caches, dev artifacts.

Clean up

  • Suggestions with reasons, each marked Safe or Review.
  • Recycle Bin (or Trash) by default, system folders refused.
  • A 7-day History restores what you removed.
*.mkv >1 GBVideos over a gigabyte
type:archiveZips, ISOs and disk images
backup <500MBSmall files named “backup”
*.iso >=2gbTerms combine freely
Screenshots

Every screen, on a made-up drive.

Start screen with drive cards, scan options and recent scans

Pick a drive or a folder, or drop one anywhere.

Download

Get Strata.

Version 0.2.0 · 2026-10-27 · release notes · changelog. All files are on the latest GitHub release, with SHA-256 checksums.

Windows

Windows 10 or 11, x64. No admin rights needed to install. Uses the WebView2 runtime that comes with Windows (the installer adds it if missing).

Installer↓ .exeStrata-Setup-0.2.0.exe · Start menu shortcut, uninstall from Settings › AppsPortable↓ .exeStrata-0.2.0-Portable.exe · one file, settings stored next to it
SmartScreen warning? The builds aren't code-signed yet. Click More info › Run anyway.

Linux

Common x64 distributions with WebKitGTK 4.1 (Ubuntu 22.04+, Debian 12+, Fedora, Arch). Adds Strata to your app menu; run strata from a terminal.

Ubuntu, Debian, Mint, Pop!_OS↓ .debStrata-0.2.0-amd64.deb
sudo apt install ./Strata-*-amd64.deb
Fedora, RHEL, Rocky, openSUSE↓ .rpmStrata-0.2.0-x86_64.rpm
sudo dnf install ./Strata-*-x86_64.rpm
Arch, Manjaro, EndeavourOS↓ .pacmanStrata-0.2.0-x64.pacman
sudo pacman -U ./Strata-*-x64.pacman
Any distribution · AppImage↓ .AppImageStrata-0.2.0-x86_64.AppImage
chmod +x Strata-*.AppImage && ./Strata-*.AppImage
Any distribution · no install↓ .tar.gzStrata-0.2.0-x64.tar.gz
tar xzf Strata-*-x64.tar.gz && ./strata
AppImage: needs FUSE (libfuse2t64 on Ubuntu 24.04+). The .deb and .rpm update from inside Strata too, after asking for your password.
Safety

It deletes files, so it's careful.

  • Nothing goes without a confirmation listing every item and the space it frees.
  • Recycle Bin by default. Permanent deletion is an explicit opt-in.
  • System locations are refused: drive roots, Windows, Program Files, /usr, /etc, your home folder.
  • Caches are emptied, not removed. Files in use are skipped and reported.
  • History keeps 7 days and restores items to where they were.
Build from source

Tauri app, Rust scanner.

Needs Node.js 20+, Git and Rust. See the README for platform toolchains.

$ git clone https://github.com/florentvdry/strata.git
$ cd strata
$ npm install
$ npm start      # builds the scanner, runs the app
$ npm run dist   # installer + portable .exe
Rust scannerNTFS MFT readerTauriPreactMIT

Find out where your space went.

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