SpaceSnifferVerify a SpaceSniffer ZIP Download
The safest way to check a SpaceSniffer ZIP is to compare its release number and published checksum before running it.
Read step-by-step guideFind a focused, practical answer to one task, with a verification step and a warning where files could be at risk.
The safest way to check a SpaceSniffer ZIP is to compare its release number and published checksum before running it.
Read step-by-step guideSpaceSniffer is portable: Windows can run it from an extracted folder instead of a traditional installer.
Read step-by-step guideSpaceSniffer 2.2.0.27 x64 supports Windows 11 and can map storage usage with a treemap.
Read step-by-step guideThe current 64-bit portable SpaceSniffer build supports Windows 10 with no installation process.
Read step-by-step guideThe current official 2.2.x SpaceSniffer release is x64; older 1.3 releases are a separate legacy branch.
Read step-by-step guideA damaged download or blocked archive extractor can prevent SpaceSniffer from starting.
Read step-by-step guideA missing extraction step, wrong architecture, or Windows security warning can stop the portable executable.
Read step-by-step guideAdministrator access may let SpaceSniffer inspect folders inaccessible to a normal Windows user.
Read step-by-step guideChoose C: in SpaceSniffer to visualize storage consumers on the system drive.
Read step-by-step guideSpaceSniffer can inspect an attached drive that Windows exposes as a drive letter.
Read step-by-step guideAn SSD's files can be examined using the same treemap view as an HDD.
Read step-by-step guideSpaceSniffer can visualize an HDD's space consumption while the scan is still running.
Read step-by-step guideNetwork locations may be scanned when Windows permissions and accessible paths allow them.
Read step-by-step guideRectangle area represents file or folder size: larger blocks account for more of the scanned storage.
Read step-by-step guideDouble-clicking a SpaceSniffer rectangle zooms into that folder's contents.
Read step-by-step guideReturn to parent views to compare nested directories after inspecting one folder.
Read step-by-step guideUse SpaceSniffer filters such as `*.jpg` to focus the treemap on matching file types.
Read step-by-step guideA SpaceSniffer filter such as `>100mb` can isolate large items for inspection.
Read step-by-step guideThe filter `>2years` can help highlight old files for archival review.
Read step-by-step guidePrefix a SpaceSniffer filter with a pipe, for example `|*.jpg`, to exclude matches from the view.
Read step-by-step guideSpaceSniffer supports compound filter criteria to narrow files by type, size, age, and tags.
Read step-by-step guideClearing the filter restores the full treemap without requiring file deletion.
Read step-by-step guideSpaceSniffer provides four temporary tag colors that can help organize review candidates.
Read step-by-step guideUse `:red` in the filter field to show red-tagged entries.
Read step-by-step guideThe expression `|:red` hides red-tagged entries while retaining the underlying scan.
Read step-by-step guideSpaceSniffer lets you explore the treemap while it continues to scan.
Read step-by-step guideRescan or refresh the relevant volume when folders change while you are reviewing them.
Read step-by-step guideSpaceSniffer can monitor file system change events and visually flag changed elements.
Read step-by-step guidePermissions, hidden paths, filters, and incomplete scans can make folders appear absent.
Read step-by-step guideDifferences from Windows Storage totals can reflect inaccessible data, metadata, pending changes, or filter settings.
Read step-by-step guideSome protected Windows directories reject reads under standard-user permissions.
Read step-by-step guideLarge directories, slow disks, inaccessible paths, and reparse points may delay an apparent scan.
Read step-by-step guideSpaceSniffer 2.2.0.27 includes a fix for a potential infinite loop involving reparse points.
Read step-by-step guideSpaceSniffer can scan NTFS alternate data streams where the selected drive supports them.
Read step-by-step guideUse a treemap to locate Windows Update-related folders, then clean them with Windows tools.
Read step-by-step guideSpaceSniffer can show the size of Windows.old after a major Windows upgrade.
Read step-by-step guideSpaceSniffer can reveal which user AppData subdirectories consume storage.
Read step-by-step guideA treemap can identify the installed application directories using the most disk space.
Read step-by-step guideSpaceSniffer can identify large game libraries and individual installed game directories.
Read step-by-step guideTreemap blocks help compare game folders across launchers on one volume.
Read step-by-step guideVideo files often appear as large treemap blocks; filtering by extension can narrow the view.
Read step-by-step guideSpaceSniffer makes it easier to spot oversized archives and installers in Downloads.
Read step-by-step guideSpaceSniffer shows folder sizes and names, but it is not a byte-for-byte duplicate detector.
Read step-by-step guideISO and virtual disk images frequently occupy very large contiguous files.
Read step-by-step guideSpaceSniffer can show how much host disk space virtual machines and snapshots occupy.
Read step-by-step guideSpaceSniffer can help inventory bulky backup folders without deciding their retention value.
Read step-by-step guideA treemap can show where browser and application caches have expanded.
Read step-by-step guideLarge log files may occupy unexpected disk space after errors or long uptime.
Read step-by-step guideSpaceSniffer can identify large temporary folders that Windows Storage may be able to clean.
Read step-by-step guideSpaceSniffer emphasizes portable visual exploration; WizTree uses its own scanning approach and interface.
Read step-by-step guideBoth tools visualize disk usage, but navigation, layout, and release approaches differ.
Read step-by-step guideSpaceSniffer centers the treemap, while TreeSize offers a directory-oriented reporting approach.
Read step-by-step guideA reliable analyzer should show large files clearly and explain its scan coverage and permission limits.
Read step-by-step guideSpaceSniffer's export module can create customizable textual reports from scan results.
Read step-by-step guideA scan report may reveal usernames, folder names, and project paths even without file contents.
Read step-by-step guideSpaceSniffer can save scan snapshots for later inspection using its own file format.
Read step-by-step guideSpaceSniffer is portable and uses an XML settings file instead of a conventional registry setup.
Read step-by-step guideSpaceSniffer allows changing view geometry and colors to make treemap blocks easier to read.
Read step-by-step guideSpaceSniffer newer releases include high-DPI display fixes and adjustable visual presentation.
Read step-by-step guideSpaceSniffer's portable program folder can be stored on removable media for controlled use.
Read step-by-step guideRecent SpaceSniffer releases include a documented command-line parser and meta-command help.
Read step-by-step guideSpaceSniffer identifies high-usage paths, but deletion decisions must be made with Windows and application context.
Read step-by-step guideSpaceSniffer and Windows Storage can help check whether deleted files still occupy the Recycle Bin.
Read step-by-step guideA SpaceSniffer treemap helps trace which folders contribute to a nearly full Windows 11 system disk.
Read step-by-step guideA visual scan can separate large personal files from installed apps on a Windows 10 drive.
Read step-by-step guideSpaceSniffer supports views of different media to compare where storage is consumed.
Read step-by-step guideScanning time depends on directory count, storage speed, permissions, and filesystem complexity.
Read step-by-step guideA treemap arranges files and folders into rectangles sized relative to their disk usage.
Read step-by-step guideSpaceSniffer is freeware from Uderzo; scanning can be used to inspect storage, but any deletion is a separate user action.
Read step-by-step guideUderzo describes SpaceSniffer as freeware and portable, with donations welcome.
Read step-by-step guideVersion 2.2.0.27 fixes reparse point loops, ADS scanning issues, tooltip clipping, and other stability problems.
Read step-by-step guide