Reclaim Your Disk Space
At Warp Speed
A modern, high-performance, cross-platform disk usage analyzer written in Rust. Coupling a work-stealing multithreaded directory walker with a zero-copy arena data structure to scan millions of files in milliseconds.
Experience the Speed
Interact with this real-time simulator showing how eDirStat maps and visualizes disk space.
Cryptographic Deduplication
Visualize how eDirStat's 7-stage pipeline isolates duplicate files and calculates reclaimable space without unnecessary disk reads.
Deduplication Stream Ready
Click "Start Scan" to watch candidate files flow through our 7-stage filter system.
| Filename | Folder Path | Size | Reclaimable |
|---|
Market-Leading Performance for
All Platforms
Real benchmarks comparing directory traversal times. Select a device drive to see the results.
SAMSUNG MZVLB512HBJQ PCIe SSD
Scanning Windows system directories containing deep system libraries and DLLs.Architected for Extreme Performance
Every stage of eDirStat is optimized to eliminate bottlenecks and fully exploit modern hardware.
Work-Stealing Walker
Powered by a lock-free queue that saturates all available CPU cores. Idle threads steal directory branches to guarantee zero idle core overhead.
NTFS MFT Scanner
Directly accesses raw Windows NTFS handles to parse the Master File Table. Bypasses the OS filesystem abstraction layers for near-instant scanning.
7-Stage Deduplication
Deduplicates byte-for-byte identical files with minimal disk reads. Filters via size, hashes (prefix, midpoint, suffix), and validates in real-time.
Zero-Copy Snapshots
Serializes directory state to a contiguous byte stream (`.edst` files). Memory maps using `memmap2` and casts directly, removing parser load.
Dynamic Visualizations
Cycles between layout modes, including interactive treemaps, directory composition charts, duplicate file composition, and timelines.
Bulk Operations
Select multiple nodes at once in the directory trees or the deduplicator to execute batch trashing, permanent deletions, or folder link creation.
Getting Started
Set up, compile from source, or run eDirStat directly on your operating system.
Run the graphical user interface from your terminal. You can pass a directory path as a positional argument to start scanning immediately:
# Run GUI with default setup
./edirstat
# Run GUI and immediately scan a directory
./edirstat /path/to/scanTo compile eDirStat from source, make sure you have the Rust compiler and cargo nightly toolchain installed:
# Clone the repository
git clone https://github.com/xangelix/edirstat.git
cd edirstat
# Compile optimized release binary
cargo build --releaseReady to Scan?
Get the official binaries pre-compiled for your platform directly on our itch.io page.
Get Binaries on itch.ioWant to Contribute?
eDirStat is fully open-source. Report issues, request features, or submit pull requests on GitHub.
Visit GitHub Repository