diff --git a/etc/powershell-completion.ps1 b/etc/powershell-completion.ps1
new file mode 100644
index 0000000000..fd3aa57f64
--- /dev/null
+++ b/etc/powershell-completion.ps1
@@ -0,0 +1,279 @@
+#
+# This file is part of mpv.
+#
+# mpv is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# mpv is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# PowerShell command line completion for the mpv media player.
+
+# It can be installed by dot sourcing it in the PowerShell profile.
+
+$Options = New-Object Collections.Generic.List[Object]
+
+$DynamicOptions = @(
+    @{ name = 'vaapi-device'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'd3d11-adapter'; pattern = 'description: (.+)' },
+    @{ name = 'vulkan-device'; pattern = "^\s*('.+?')" },
+    @{ name = 'audio-device'; pattern = "^\s*('\S+')" },
+    @{ name = 'hwdec'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'error-diffusion'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'scale'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'cscale'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'dscale'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'tscale'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'profile'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'ao'; pattern = '^\s*([-\w]+)' },
+    @{ name = 'vo'; pattern = '^\s*([-\w]+)' }
+)
+
+Function SetOptions
+{
+    try
+    {
+        $optionContent = mpv --no-config --list-options
+    }
+    catch
+    {
+        throw
+    }
+
+    foreach ($line in $optionContent)
+    {
+        $line = $line.Trim()
+
+        if (-not $line.StartsWith('--'))
+        {
+            continue
+        }
+
+        $name = ''; $value = ''; $type = ''; $choices = $null;
+
+        if ($line.Contains(' '))
+        {
+            $name = $line.Substring(2, $line.IndexOf(' ') - 2)
+            $value = $line.Substring($line.IndexOf(' ') + 1).Trim()
+
+            if ($value.Contains('('))
+            {
+                $value = $value.Substring(0, $value.IndexOf('(')).TrimEnd()
+            }
+
+            $value = $value
+        }
+        else
+        {
+            $name = $line.Substring(2)
+        }
+
+        if ($value.StartsWith('Choices:'))
+        {
+            $type = 'choice'
+            $choices = $value.Substring(8).TrimStart() -split ' '
+        }
+
+        if ($value.StartsWith('Flag'))
+        {
+            $type = 'flag'
+        }
+
+        if ($value.Contains('[file]') -or $name.Contains('-file'))
+        {
+            $type = 'file'
+        }
+
+        $table = @{ name = $name; value = $value; type = $type; choices = $choices }
+
+        if ($type -eq 'flag')
+        {
+            $noTable = @{ name = 'no-' + $name; value = $value; type = ''; choices = $null }
+            $Options.Add($table)
+            $Options.Add($noTable)
+        }
+        else
+        {
+            $Options.Add($table)
+        }
+    }
+}
+
+Function Update-Option($name)
+{
+    foreach ($it in $Options)
+    {
+        if ($name -eq $it.name)
+        {
+            $option = $it
+            break
+        }
+    }
+
+    if ($null -eq $option)
+    {
+        Write-Error "Option $name is unknown."
+        return
+    }
+
+    if ($null -ne $option.choices)
+    {
+        return
+    }
+
+    foreach ($opt in $DynamicOptions)
+    {
+        if ($name -eq $opt.name)
+        {
+            $output = mpv ('--' + $opt.name + '=help') | Select-Object -Skip 1 |
+                 Select-String ($opt.pattern) -AllMatches |
+                 ForEach-Object { $_.matches.Groups[1].Value } |
+                 Select-Object -Unique | Sort-Object
+
+            $output = $output | foreach { if ($_ -match "'\w+'") { $_ -replace "'", '' } else { $_ } }
+            $output = $output | foreach { if ($_ -match "^'.+'$") { $_ -replace "'", '' } else { $_ } }
+            $output = $output | foreach { if ($_.Contains(' ') -or $_.Contains('{')) { '"' + $_ + '"' } else { $_ } }
+
+            if ($output -is [string])
+            {
+                $output = @($output)
+            }
+
+            $output += @('help')
+            $option.choices = $output
+            $option.type = 'choice'
+            break
+        }
+    }
+}
+
+Function Get-Completion($cursorPosition, $wordToComplete, $commandName)
+{
+    if ($Options.Count -eq 0)
+    {
+        SetOptions
+    }
+
+    if ($commandName.StartsWith('--'))
+    {
+        if ($commandName -like '--*-file*=')
+        {
+            return (Get-ChildItem -file).FullName | Resolve-Path -Relative |
+                ForEach-Object { if ($_.Contains(' ')) { $commandName + "'$_'" } else { $commandName + $_ } }
+        }
+
+        if ($commandName -match '(--.+-file.*=)(.+)')
+        {
+            return (Get-ChildItem -file).FullName | Resolve-Path -Relative |
+                Where-Object { $_.ToLower().Contains($Matches[2].ToLower()) } |
+                ForEach-Object { if ($_.Contains(' ')) { $Matches[1] + "'$_'" } else { $Matches[1] + $_ } }
+        }
+
+        $shortCommandName = $commandName.Substring(2)
+
+        $argName = ''
+
+        if ($commandName.EndsWith('='))
+        {
+            $shortCommandName = $shortCommandName.Substring(0, $shortCommandName.Length -1)
+        }
+        elseif ($commandName.Contains('='))
+        {
+            $shortCommandName = $shortCommandName.Substring(0, $shortCommandName.IndexOf('='))
+            $argName = $commandName.Substring($commandName.IndexOf('=') + 1)
+        }
+
+        foreach ($it in $DynamicOptions)
+        {
+            if ($shortCommandName -eq $it.name)
+            {
+                Update-Option $it.name
+                break
+            }
+        }
+
+        $results = New-Object Collections.Generic.List[Object]
+
+        $exactMatches = $Options | Where-Object { $_.name -eq $shortCommandName }
+
+        foreach ($it in $exactMatches)
+        {
+            if (-not $commandName.Contains('='))
+            {
+                continue
+            }
+
+            $arguments = $null
+
+            if ($it.type -eq 'flag')
+            {
+                $arguments = 'yes', 'no'
+            }
+
+            if ($it.type -eq 'choice' -and $null -ne $it.choices)
+            {
+                $arguments = $it.choices
+            }
+
+            if ($null -ne $arguments)
+            {
+                foreach ($arg in $arguments)
+                {
+                    if ($argName -ne '')
+                    {
+                        if ($arg.StartsWith($argName))
+                        {
+                            $results.Add('--' + $it.name + '=' + $arg)
+                        }
+                    }
+                    else
+                    {
+                        $results.Add('--' + $it.name + '=' + $arg)
+                    }
+                }
+            }
+        }
+
+        if (-not $commandName.Contains('='))
+        {
+            $partlyMatches = $Options | Where-Object { $_.name.StartsWith($shortCommandName) }
+
+            foreach ($it in $partlyMatches)
+            {
+                if ($it.name -eq $shortCommandName)
+                {
+                    continue
+                }
+
+                $results.Add('--' + $it.name)
+            }
+        }
+
+        return $results
+    }
+    elseif ($commandName -eq '')
+    {
+        return (Get-ChildItem).FullName | Resolve-Path -Relative
+    }
+    else
+    {
+        return (Get-ChildItem).FullName | Resolve-Path -Relative |
+            Where-Object { $_.ToLower().Contains($commandName.ToLower()) }
+    }
+}
+
+Register-ArgumentCompleter -Native -CommandName mpv -ScriptBlock {
+    param($commandName, $wordToComplete, $cursorPosition)
+
+    Get-Completion $cursorPosition "$wordToComplete" "$commandName" | ForEach-Object {
+        [System.Management.Automation.CompletionResult]::new($_, $_, 'ParameterValue', $_)
+    }
+}