Registry command key:
C:\scripts\singleinstance.exe "%1" "LsSizeLauncher.bat" "$files" --si-timeout 300
Last active
January 3, 2026 16:28
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Compare Sizes across files and folders powershell utility
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| param ( | |
| [Parameter(Mandatory = $true, ValueFromRemainingArguments = $true)] | |
| [string[]]$Paths | |
| ) | |
| function Get-SizeReadable { | |
| param ([Int64]$bytes) | |
| $suffixes = "B","KB","MB","GB","TB","PB" | |
| $i = 0 | |
| while ($bytes -ge 1024 -and $i -lt $suffixes.Length - 1) { | |
| $bytes = [math]::Round($bytes / 1024, 2) | |
| $i++ | |
| } | |
| return "$bytes $($suffixes[$i])" | |
| } | |
| function Format-Name { | |
| param ( | |
| [string]$Name, | |
| [int]$MaxLength = 32 | |
| ) | |
| if ($Name.Length -le $MaxLength) { | |
| return $Name | |
| } | |
| # Keep start + end, truncate middle | |
| $keepStart = [math]::Floor(($MaxLength - 3) / 2) | |
| $keepEnd = $MaxLength - 3 - $keepStart | |
| return ($Name.Substring(0, $keepStart) + "..." + $Name.Substring($Name.Length - $keepEnd)) | |
| } | |
| $dirs = @() | |
| $files = @() | |
| $allResults = @() | |
| if ($Paths.Count -eq 1) { | |
| $Paths = @(Get-ChildItem -LiteralPath $Paths | Select-Object -ExpandProperty FullName) | |
| } | |
| foreach ($path in $Paths) { | |
| $item = Get-Item $path | |
| if ($item.PSIsContainer) { | |
| $dirs += $path | |
| } else { | |
| $files += $path | |
| } | |
| } | |
| # ---------- HEADER ---------- | |
| Write-Host ("{0,-36} {1,-15} {2}" -f "Name", "Count", "Size") -ForegroundColor Green | |
| Write-Host ("{0,-36} {1,-15} {2}" -f "----", "-----", "----") -ForegroundColor Green | |
| # ---------- FOLDERS ---------- | |
| foreach ($path in $dirs) { | |
| $stats = Get-ChildItem -Recurse -File -Path $path -Force | Measure-Object Length -Sum | |
| $displayName = Format-Name (Split-Path -Path $path -Leaf) | |
| $allResults += [PSCustomObject]@{ | |
| Name = $displayName | |
| Count = "$($stats.Count) files" | |
| Size = $stats.Sum | |
| IsDir = $true | |
| } | |
| $sizeFormatted = Get-SizeReadable $stats.Sum | |
| $color = if ($stats.Sum -ge 1073741824) { "Red" } else { "Cyan" } | |
| Write-Host ("{0,-36} {1,-15} {2}" -f $displayName, "$($stats.Count) files", $sizeFormatted) -ForegroundColor $color | |
| } | |
| # ---------- FILES ---------- | |
| foreach ($path in $files) { | |
| $item = Get-Item $path -Force | |
| $displayName = Format-Name (Split-Path -Path $path -Leaf) | |
| $allResults += [PSCustomObject]@{ | |
| Name = $displayName | |
| Count = "" | |
| Size = $item.Length | |
| IsDir = $false | |
| } | |
| $sizeFormatted = Get-SizeReadable $item.Length | |
| $color = if ($item.Length -ge 1073741824) { "Red" } else { "Yellow" } | |
| Write-Host ("{0,-36} {1,-15} {2}" -f $displayName, "", $sizeFormatted) -ForegroundColor $color | |
| } | |
| # ---------- SORTED TABLE (DIRS + FILES) ---------- | |
| Write-Host | |
| Write-Host "Items sorted by size (descending)" -ForegroundColor Green | |
| Write-Host ("{0,-36} {1,-15} {2}" -f "Name", "Count", "Size") -ForegroundColor Green | |
| Write-Host ("{0,-36} {1,-15} {2}" -f "----", "-----", "----") -ForegroundColor Green | |
| $allResults | | |
| Sort-Object Size -Descending | | |
| ForEach-Object { | |
| $sizeFormatted = Get-SizeReadable $_.Size | |
| $color = if ($_.Size -ge 1073741824) { | |
| "Red" | |
| } elseif ($_.IsDir) { | |
| "Cyan" | |
| } else { | |
| "Yellow" | |
| } | |
| Write-Host ("{0,-36} {1,-15} {2}" -f (Format-Name $_.Name), $_.Count, $sizeFormatted) -ForegroundColor $color | |
| } | |
| Write-Host |
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| Windows Registry Editor Version 5.00 | |
| [HKEY_CLASSES_ROOT\Directory\shell\CompareSizes] | |
| @="Compare sizes" | |
| "Icon"="F:\\icons\\folder.ico" | |
| [HKEY_CLASSES_ROOT\Directory\shell\CompareSizes\command] | |
| @="C:\\scripts\\singleinstance.exe \"%1\" \"LsSizeLauncher.bat\" \"$files\" --si-timeout 300" |
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| @echo off | |
| powershell -NoProfile -ExecutionPolicy Bypass -File "C:\scripts\LsSize.ps1" %* | |
| pause |
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