mathom delivers near-instant NTFS scans and live disk maps
Reads the Master File Table directly to scan NTFS drives in seconds, producing a live treemap and tree view as results populate. Built by gitRasheed, the Windows utility targets power users and administrators who need quick, accurate disk visibility. It reports logical versus allocated sizes, handles NTFS compression and sparse files, and offers in-app search and delete-to-Recycle-Bin actions, making it useful for fast cleanup and forensic-style disk inspection.
What mathom does and how it achieves speed
mathom bypasses standard folder walking by reading the Master File Table (MFT) on NTFS volumes, which lets it index millions of files in seconds. That direct-MFT approach is the concrete mechanism behind its high scan speed. When administrator privileges are declined, it falls back to a slower folder-walking method, so the app still completes scans without elevated rights but at reduced speed.
How it affects system resources during a scan
The tool uses a modern Rust and Tauri v2 stack, which produces a small runtime footprint while scanning. Because it reads the MFT rather than opening every file, the scan avoids heavy file I/O typical of recursive crawls. The source notes the app is designed for high performance and small footprint, so CPU and disk contention during an MFT scan are lower than with full file reads.
Safety, permission model, and file operations
mathom requires administrator rights to perform MFT-speed scans, and it offers an integrated option to delete items to the Recycle Bin from the interface. The app accounts for NTFS complexities, including compression, sparse files, OneDrive placeholders, and hardlink counting, which improves the accuracy of size reporting and reduces the risk of mistaken deletions based on misleading size values.
Interface, workflow, and technical accessibility
The UI streams treemap and tree views live as the scan runs, allowing immediate visual inspection before completion. Search and file-type breakdown are built into the view, so a systems specialist can filter and act without switching tools. The MFT mode is geared to users comfortable granting elevated rights; if you avoid administrator access, the fallback is slower and more manual.
Who should use mathom and a practical caveat
mathom suits Windows power users and admins who need rapid, accurate visibility into NTFS storage and who can grant administrator access for MFT reads. Expect much faster indexing than folder-walking tools, but be prepared to run the slower fallback when elevated rights are not available. Recommended.
