diff --git a/cmake/MakePortableZip.cmake b/cmake/MakePortableZip.cmake
new file mode 100644
index 000000000..6f873c5d5
--- /dev/null
+++ b/cmake/MakePortableZip.cmake
@@ -0,0 +1,3 @@
+if (CMAKE_INSTALL_PREFIX MATCHES "/ZIP/")
+  file(TOUCH "${CMAKE_INSTALL_PREFIX}/.portable")
+endif()
diff --git a/release-tool b/release-tool
index b838f8753..afc3229b3 100755
--- a/release-tool
+++ b/release-tool
@@ -1014,17 +1014,6 @@ build() {
             # release.
             cpack -G "${CPACK_GENERATORS};${build_generators}"
 
-            # Inject the portable config into the zip build and rename
-            touch .portable
-            for filename in ${APP_NAME}-*.zip; do
-                logInfo "Creating portable zip file"
-                local folder=$(echo ${filename} | sed -r 's/(.*)\.zip/\1/')
-                python -c 'import zipfile,sys ; zipfile.ZipFile(sys.argv[1],"a").write(sys.argv[2],sys.argv[3])' \
-                    ${filename} .portable ${folder}/.portable
-                mv ${filename} ${folder}-portable.zip
-            done
-            rm .portable
-
             mv "${APP_NAME}-"*.* ../
         else
             mkdir -p "${OUTPUT_DIR}/KeePassXC.AppDir"
diff --git a/release-tool.ps1 b/release-tool.ps1
new file mode 100644
index 000000000..fda7ff891
--- /dev/null
+++ b/release-tool.ps1
@@ -0,0 +1,540 @@
+<#
+.SYNOPSIS
+KeePassXC Release Tool
+
+.DESCRIPTION
+Commands:
+  merge      Merge release branch into main branch and create release tags
+  build      Build and package binary release from sources
+  sign       Sign previously compiled release packages
+
+.NOTES
+The following are descriptions of certain parameters:
+  -Vcpkg           Specify VCPKG toolchain file (example: C:\vcpkg\scripts\buildsystems\vcpkg.cmake)
+  -Tag             Release tag to check out (defaults to version number)
+  -Snapshot        Build current HEAD without checkout out Tag
+  -CMakeGenerator  Override the default CMake generator
+  -CMakeOptions    Additional CMake options for compiling the sources
+  -CPackGenerators Set CPack generators (default: WIX;ZIP)
+  -Compiler        Compiler to use (example: g++, clang, msbuild)
+  -MakeOptions     Options to pass to the make program
+  -SignBuild       Perform platform specific App Signing before packaging
+  -SignKey         Specify the App Signing Key/Identity
+  -TimeStamp       Explicitly set the timestamp server to use for appsign
+  -SourceBranch    Source branch to merge from (default: 'release/$Version')
+  -TargetBranch    Target branch to merge to (default: master)
+  -VSToolChain     Specify Visual Studio Toolchain by name if more than one is available
+#>
+
+param(
+    [Parameter(ParameterSetName = "merge", Mandatory, Position = 0)]
+    [switch] $Merge,
+    [Parameter(ParameterSetName = "build", Mandatory, Position = 0)]
+    [switch] $Build,
+    [Parameter(ParameterSetName = "sign", Mandatory, Position = 0)]
+    [switch] $Sign,
+
+    [Parameter(ParameterSetName = "merge", Mandatory, Position = 1)]
+    [Parameter(ParameterSetName = "build", Mandatory, Position = 1)]
+    [Parameter(ParameterSetName = "sign", Mandatory, Position = 1)]
+    [ValidatePattern("^[0-9]\.[0-9]\.[0-9]$")]
+    [string] $Version,
+
+    [Parameter(ParameterSetName = "build", Mandatory)]
+    [string] $Vcpkg,
+
+    [Parameter(ParameterSetName = "sign", Mandatory)]
+    [SupportsWildcards()]
+    [string[]] $SignFiles,
+
+    # [Parameter(ParameterSetName = "build")]
+    # [switch] $DryRun,
+    [Parameter(ParameterSetName = "build")]
+    [switch] $Snapshot,
+    [Parameter(ParameterSetName = "build")]
+    [switch] $SignBuild,
+    
+    [Parameter(ParameterSetName = "build")]
+    [string] $CMakeGenerator = "Ninja",
+    [Parameter(ParameterSetName = "build")]
+    [string] $CMakeOptions,
+    [Parameter(ParameterSetName = "build")]
+    [string] $CPackGenerators = "WIX;ZIP",
+    [Parameter(ParameterSetName = "build")]
+    [string] $Compiler,
+    [Parameter(ParameterSetName = "build")]
+    [string] $MakeOptions,
+    [Parameter(ParameterSetName = "build")]
+    [Parameter(ParameterSetName = "sign")]
+    [string] $SignKey,
+    [Parameter(ParameterSetName = "build")]
+    [Parameter(ParameterSetName = "sign")]
+    [string] $Timestamp = "http://timestamp.sectigo.com",
+    [Parameter(ParameterSetName = "merge")]
+    [Parameter(ParameterSetName = "build")]
+    [Parameter(ParameterSetName = "sign")]
+    [string] $GpgKey = "CFB4C2166397D0D2",
+    [Parameter(ParameterSetName = "merge")]
+    [Parameter(ParameterSetName = "build")]
+    [string] $SourceDir = ".",
+    [Parameter(ParameterSetName = "build")]
+    [string] $OutDir = ".\release",
+    [Parameter(ParameterSetName = "merge")]
+    [Parameter(ParameterSetName = "build")]
+    [string] $Tag,
+    [Parameter(ParameterSetName = "merge")]
+    [string] $SourceBranch,
+    [Parameter(ParameterSetName = "merge")]
+    [string] $TargetBranch = "master",
+    [Parameter(ParameterSetName = "build")]
+    [string] $VSToolChain,
+    [Parameter(ParameterSetName = "merge")]
+    [Parameter(ParameterSetName = "build")]
+    [Parameter(ParameterSetName = "sign")]
+    [string] $ExtraPath
+)
+
+# Helper function definitions
+function Test-RequiredPrograms {
+    # If any of these fail they will throw an exception terminating the script
+    if ($Build) {
+        Get-Command git | Out-Null
+        Get-Command cmake | Out-Null
+    }
+    if ($Merge) {
+        Get-Command git | Out-Null
+        Get-Command tx | Out-Null
+        Get-Command lupdate | Out-Null
+    }
+    if ($Sign -or $SignBuild) {
+        if ($SignKey.Length) {
+            Get-Command signtool | Out-Null
+        }
+        Get-Command gpg | Out-Null
+    }
+}
+
+function Test-VersionInFiles {
+    # Check CMakeLists.txt
+    $Major, $Minor, $Patch = $Version.split(".", 3)
+    if (!(Select-String "$SourceDir\CMakeLists.txt" -pattern "KEEPASSXC_VERSION_MAJOR `"$Major`"" -Quiet) `
+            -or !(Select-String "$SourceDir\CMakeLists.txt" -pattern "KEEPASSXC_VERSION_MINOR `"$Minor`"" -Quiet) `
+            -or !(Select-String "$SourceDir\CMakeLists.txt" -pattern "KEEPASSXC_VERSION_PATCH `"$Patch`"" -Quiet)) {
+        throw "CMakeLists.txt has not been updated to $Version."
+    }
+
+    # Check Changelog
+    if (!(Select-String "$SourceDir\CHANGELOG.md" -pattern "^## $Version \(\d{4}-\d{2}-\d{2}\)$" -Quiet)) {
+        throw "CHANGELOG.md does not contain a section for $Version."
+    }
+
+    # Check AppStreamInfo
+    if (!(Select-String "$SourceDir\share\linux\org.keepassxc.KeePassXC.appdata.xml" `
+                -pattern "<release version=`"$Version`" date=`"\d{4}-\d{2}-\d{2}`">" -Quiet)) {
+        throw "share/linux/org.keepassxc.KeePassXC.appdata.xml does not contain a section for $Version."
+    }
+
+    # Check Snapcraft
+    if (!(Select-String "$SourceDir\snap\snapcraft.yaml" -pattern "version: $Version" -Quiet)) {
+        throw "snap/snapcraft.yaml has not been updated to $Version."
+    }
+}
+
+function Test-WorkingTreeClean {
+    & git diff-index --quiet HEAD --
+    if ($LASTEXITCODE) {
+        throw "Current working tree is not clean! Please commit or unstage any changes."
+    }
+}
+
+function Invoke-VSToolchain([String] $Toolchain, [String] $Path, [String] $Arch) {
+    # Find Visual Studio installations
+    $vs = Get-CimInstance MSFT_VSInstance
+    if ($vs.count -eq 0) {
+        $err = "No Visual Studio installations found, download one from https://visualstudio.com/downloads."
+        $err = "$err`nIf Visual Studio is installed, you may need to repair the install then restart."
+        throw $err
+    }
+
+    $VSBaseDir = $vs[0].InstallLocation
+    if ($Toolchain) {
+        # Try to find the specified toolchain by name
+        foreach ($_ in $vs) {
+            if ($_.Name -eq $Toolchain) {
+                $VSBaseDir = $_.InstallLocation
+                break
+            }
+        }
+    } elseif ($vs.count -gt 1) {
+        # Ask the user which install to use
+        $i = 0
+        foreach ($_ in $vs) {
+            $i = $i + 1
+            $i.ToString() + ") " + $_.Name | Write-Host
+        }
+        $i = Read-Host -Prompt "Which Visual Studio installation do you want to use?"
+        $i = [Convert]::ToInt32($i, 10) - 1
+        if ($i -lt 0 -or $i -ge $vs.count) {
+            throw "Invalid selection made"
+        }
+        $VSBaseDir = $vs[$i].InstallLocation
+    }
+    
+    # Bootstrap the specified VS Toolchain
+    Import-Module "$VSBaseDir\Common7\Tools\Microsoft.VisualStudio.DevShell.dll"
+    Enter-VsDevShell -VsInstallPath $VSBaseDir -Arch $Arch -StartInPath $Path | Write-Host
+    Write-Host # Newline after command output
+}
+
+function Invoke-Cmd([string] $command, [string[]] $options = @(), [switch] $maskargs, [switch] $quiet) {
+    $call = ('{0} {1}' -f $command, ($options -Join ' '))
+    if ($maskargs) {
+        Write-Host "$command <masked>" -ForegroundColor DarkGray
+    }
+    else {
+        Write-Host $call -ForegroundColor DarkGray
+    }
+    if ($quiet) {
+        Invoke-Expression $call > $null
+    } else {
+        Invoke-Expression $call
+    }
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to run command: {0}" -f $command
+    }
+    Write-Host #insert newline after command output
+}
+
+function Invoke-SignFiles([string[]] $files, [string] $key, [string] $time) {
+    if (!(Test-Path -Path "$key" -PathType leaf)) {
+        throw "Appsign key file was not found! ($key)"
+    }
+    if ($files.Length -eq 0) {
+        return
+    }
+
+    Write-Host "Signing files using $key" -ForegroundColor Cyan
+    $KeyPassword = Read-Host "Key password: " -MaskInput
+
+    foreach ($_ in $files) {
+        Write-Host "Signing file '$_' using Microsoft signtool..."
+        Invoke-Cmd "signtool" "sign -f `"$key`" -p `"$KeyPassword`" -d `"KeePassXC`" -td sha256 -fd sha256 -tr `"$time`" `"$_`"" -maskargs
+    }
+}
+
+function Invoke-GpgSignFiles([string[]] $files, [string] $key) {
+    if ($files.Length -eq 0) {
+        return
+    }
+
+    Write-Host "Signing files using GPG key $key" -ForegroundColor Cyan
+
+    foreach ($_ in $files) {
+        Write-Host "Signing file '$_' and creating DIGEST..."
+        Remove-Item "$_.sig"
+        Invoke-Cmd "gpg" "--output `"$_.sig`" --armor --local-user `"$key`" --detach-sig `"$_`""
+        $FileName = (Get-Item $_).Name
+        (Get-FileHash "$_" SHA256).Hash + " *$FileName" | Out-File "$_.DIGEST" -NoNewline
+    }
+}
+
+
+# Handle errors and restore state
+$OrigDir = (Get-Location).Path
+$OrigBranch = & git rev-parse --abbrev-ref HEAD
+$ErrorActionPreference = 'Stop'
+trap {
+    Write-Host "Restoring state..." -ForegroundColor Yellow
+    & git checkout $OrigBranch
+    Set-Location "$OrigDir"
+}
+
+Write-Host "KeePassXC Release Preparation Helper" -ForegroundColor Green
+Write-Host "Copyright (C) 2022 KeePassXC Team <https://keepassxc.org/>`n" -ForegroundColor Green
+
+# Prepend extra PATH locations as specified
+if ($ExtraPath) {
+    $env:Path = "$ExtraPath;$env:Path"
+}
+
+# Resolve absolute directory for paths
+$SourceDir = (Resolve-Path $SourceDir).Path
+
+# Check format of -Version
+if ($Version -notmatch "^\d+\.\d+\.\d+$") {
+    throw "Invalid format for -Version input"
+}
+
+# Check platform
+if (!$IsWindows) {
+    throw "The PowerShell release tool is not available for Linux or macOS at this time."
+}
+
+if ($Merge) {
+    Test-RequiredPrograms
+
+    # Change to SourceDir
+    Set-Location "$SourceDir"
+
+    Test-VersionInFiles
+    Test-WorkingTreeClean
+
+    if (!$SourceBranch.Length) {
+        $SourceBranch = & git branch --show-current
+    }
+
+    if ($SourceBranch -notmatch "^release/.*|develop$") {
+        throw "Must be on develop or a release/* branch to continue merging."
+    }
+
+    # Update translation files
+    Write-Host "Updating source translation file..."
+    Invoke-Cmd "lupdate" "-no-ui-lines -disable-heuristic similartext -locations none", `
+        "-no-obsolete ./src -ts share/translations/keepassxc_en.ts"
+
+    Write-Host "Pulling updated translations from Transifex..."
+    Invoke-Cmd "tx" "pull -af --minimum-perc=60 --parallel -r keepassxc.share-translations-keepassxc-en-ts--develop"
+
+    # Only commit if there are changes
+    & git diff-index --quiet HEAD --
+    if ($LASTEXITCODE) {
+        Write-Host "Committing translation updates..."
+        Invoke-Cmd "git" "add -A ./share/translations/" -quiet
+        Invoke-Cmd "git" "commit -m `"Update translations`"" -quiet
+    }
+
+    # Read the version release notes from CHANGELOG
+    $Changelog = ""
+    $ReadLine = $false
+    Get-Content "CHANGELOG.md" | ForEach-Object {
+        if ($ReadLine) {
+            if ($_ -match "^## ") {
+                $ReadLine = $false
+            } else {
+                $Changelog += $_ + "`n"
+            }
+        } elseif ($_ -match "$Version \(\d{4}-\d{2}-\d{2}\)") {
+            $ReadLine = $true
+        }
+    }
+
+    Write-Host "Checking out target branch '$TargetBranch'..."
+    Invoke-Cmd "git" "checkout `"$TargetBranch`"" -quiet
+
+    Write-Host "Merging '$SourceBranch' into '$TargetBranch'..."
+    Invoke-Cmd "git" "merge `"$SourceBranch`" --no-ff -m `"Release $Version`" -m `"$Changelog`" `"$SourceBranch`" -S" -quiet
+
+    Write-Host "Creating tag for '$Version'..."
+    Invoke-Cmd "git" "tag -a `"$Version`" -m `"Release $Version`" -m `"$Changelog`" -s" -quiet
+
+    Write-Host "All done!"
+    Write-Host "Please merge the release branch back into the develop branch now and then push your changes."
+    Write-Host "Don't forget to also push the tags using 'git push --tags'."
+} elseif ($Build) {
+    $OutDir = (Resolve-Path $OutDir).Path
+    $BuildDir = "$OutDir\build-release"
+    $Vcpkg = (Resolve-Path $Vcpkg).Path
+
+    # Find Visual Studio and establish build environment
+    Invoke-VSToolchain $VSToolChain $SourceDir -Arch "amd64"
+
+    Test-RequiredPrograms
+
+    if ($Snapshot) {
+        $Tag = "HEAD"
+        $SourceBranch = & git rev-parse --abbrev-ref HEAD
+        $ReleaseName = "$Version-snapshot"
+        $CMakeOptions = "$CMakeOptions -DKEEPASSXC_BUILD_TYPE=Snapshot -DOVERRIDE_VERSION=`"$ReleaseName`""
+        Write-Host "Using current branch '$SourceBranch' to build." -ForegroundColor Cyan
+    } else {
+        Test-WorkingTreeClean
+
+        # Clear output directory
+        if (Test-Path $OutDir) {
+            Remove-Item $OutDir -Recurse
+        }
+        
+        if ($Version -match "-beta\\d+$") {
+            $CMakeOptions = "$CMakeOptions -DKEEPASSXC_BUILD_TYPE=PreRelease"
+        } else {
+            $CMakeOptions = "$CMakeOptions -DKEEPASSXC_BUILD_TYPE=Release"
+        }
+
+        # Setup Tag if not defined then checkout tag
+        if ($Tag -eq "" -or $Tag -eq $null) {
+            $Tag = $Version
+        }
+        Write-Host "Checking out tag 'tags/$Tag' to build." -ForegroundColor Cyan
+        Invoke-Cmd "git" "checkout `"tags/$Tag`""
+    }
+
+    # Create directories
+    New-Item "$OutDir" -ItemType Directory -Force | Out-Null
+    New-Item "$BuildDir" -ItemType Directory -Force | Out-Null
+
+    # Enter build directory
+    Set-Location "$BuildDir"
+
+    # Setup CMake options
+    $CMakeOptions = "$CMakeOptions -DWITH_XC_ALL=ON -DWITH_TESTS=OFF -DCMAKE_BUILD_TYPE=Release"
+    $CMakeOptions = "$CMakeOptions -DCMAKE_TOOLCHAIN_FILE:FILEPATH=`"$Vcpkg`" -DX_VCPKG_APPLOCAL_DEPS_INSTALL=ON"
+
+    Write-Host "Configuring build..." -ForegroundColor Cyan
+    Invoke-Cmd "cmake" "$CMakeOptions -G `"$CMakeGenerator`" `"$SourceDir`""
+
+    Write-Host "Compiling sources..." -ForegroundColor Cyan
+    Invoke-Cmd "cmake" "--build . --config Release -- $MakeOptions"
+    
+    if ($SignBuild) {
+        $files = Get-ChildItem "$BuildDir\src" -Include "*keepassxc*.exe", "*keepassxc*.dll" -Recurse -File | ForEach-Object { $_.FullName }
+        Invoke-SignFiles $files $SignKey $Timestamp
+    }
+
+    Write-Host "Create deployment packages..." -ForegroundColor Cyan
+    Invoke-Cmd "cpack" "-G `"$CPackGenerators`""
+    Move-Item "$BuildDir\keepassxc-*" -Destination "$OutDir" -Force
+
+    if ($SignBuild) {
+        # Enter output directory
+        Set-Location -Path "$OutDir"
+
+        # Sign MSI files using AppSign key
+        $files = Get-ChildItem $OutDir -Include "*.msi" -Name
+        Invoke-SignFiles $files $SignKey $Timestamp
+
+        # Sign all output files using the GPG key then hash them
+        $files = Get-ChildItem $OutDir -Include "*.msi", "*.zip" -Name
+        Invoke-GpgSignFiles $files $GpgKey
+    }
+
+    # Restore state
+    Invoke-Command {git checkout $OrigBranch}
+    Set-Location "$OrigDir"
+} elseif ($Sign) {
+    if (Test-Path $SignKey) {
+        # Need to include path to signtool program
+        Invoke-VSToolchain $VSToolChain $SourceDir -Arch "amd64"
+    }
+
+    Test-RequiredPrograms
+
+    # Resolve wildcard paths
+    $ResolvedFiles = @()
+    foreach ($_ in $SignFiles) {
+        $ResolvedFiles += (Get-ChildItem $_ -File | ForEach-Object { $_.FullName })
+    }
+
+    $AppSignFiles = $ResolvedFiles.Where({ $_ -match "\.(msi|exe|dll)$" })
+    Invoke-SignFiles $AppSignFiles $SignKey $Timestamp
+
+    $GpgSignFiles = $ResolvedFiles.Where({ $_ -match "\.(msi|zip|gz|xz|dmg|appimage)$" })
+    Invoke-GpgSignFiles $GpgSignFiles $GpgKey
+}
+
+# SIG # Begin signature block
+# MIIThAYJKoZIhvcNAQcCoIITdTCCE3ECAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB
+# gjcCAQSgWzBZMDQGCisGAQQBgjcCAR4wJgIDAQAABBAfzDtgWUsITrck0sYpfvNR
+# AgEAAgEAAgEAAgEAAgEAMCEwCQYFKw4DAhoFAAQUyaXWK5K1LP2TD/IgGb5Tfs8v
+# C2GgghC8MIIFOjCCBCKgAwIBAgIQWKLXLYzA/YnM/yHg1O3HSjANBgkqhkiG9w0B
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+# BgNVBAMTG1NlY3RpZ28gUlNBIENvZGUgU2lnbmluZyBDQTAeFw0yMTAzMTUwMDAw
+# MDBaFw0yNDAzMTQyMzU5NTlaMIGhMQswCQYDVQQGEwJVUzEOMAwGA1UEEQwFMjIz
+# MTUxETAPBgNVBAgMCFZpcmdpbmlhMRIwEAYDVQQHDAlGcmFuY29uaWExGzAZBgNV
+# BAkMEjY2NTMgQXVkcmV5IEtheSBDdDEeMBwGA1UECgwVRHJvaWRNb25rZXkgQXBw
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+# SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCwB9L/+1zlcXOQLoYvdrYAWS9B5ui+7E9c
+# XCn6wcB4NdmaRbNM3kdWc8nbjOOHeOct2jVzVu/pJR1SagI+V1R1BfzgfzuW55Yy
+# iHrqXQGfL9xhqJAWSvdQRinvlkZ+WY3QxnOhzcQk+BTLYdUwq04O3jMv7vnH6fuL
+# q/HXEsgDObZC7EyKEtVbWVo4nqY0tUTviJXvRI/sFDN8DvULefwZWIvF7G11NFeK
+# It24+hDCzvVBKtEn7DNmFGO1CJAB7Sz4jFewV4MP1gviMAfGbSBqavyRDBOG7eda
+# SVb1Zq482yoHNAs+mpIQK2SGvUKKAJK2wCDbzgpvu5sfzwStpc0hAgMBAAGjggGQ
+# MIIBjDAfBgNVHSMEGDAWgBQO4TqoUzox1Yq+wbutZxoDha00DjAdBgNVHQ4EFgQU
+# 7u2WZ7fqJiaM3u9SlzAwGBhoWH0wDgYDVR0PAQH/BAQDAgeAMAwGA1UdEwEB/wQC
+# MAAwEwYDVR0lBAwwCgYIKwYBBQUHAwMwEQYJYIZIAYb4QgEBBAQDAgQQMEoGA1Ud
+# IARDMEEwNQYMKwYBBAGyMQECAQMCMCUwIwYIKwYBBQUHAgEWF2h0dHBzOi8vc2Vj
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+# SIG # End signature block
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index ead58ea7f..9e0f2b356 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -435,6 +435,9 @@ if(WIN32)
             "${CMAKE_SOURCE_DIR}/LICENSE.GPL-2"
             "${CMAKE_CURRENT_BINARY_DIR}/INSTALLER_LICENSE.txt")
 
+    # Prepare portal zip file
+    set(CPACK_INSTALL_SCRIPTS "${CMAKE_SOURCE_DIR}/cmake/MakePortableZip.cmake")
+
     string(REGEX REPLACE "-.*$" "" KEEPASSXC_VERSION_CLEAN ${KEEPASSXC_VERSION})
 
     set(CPACK_GENERATOR "ZIP;WIX")