diff --git a/win/Modules/Bookmark/Bookmark.psm1 b/win/Modules/Bookmark/Bookmark.psm1
new file mode 100644
index 0000000..7ae421c
--- /dev/null
+++ b/win/Modules/Bookmark/Bookmark.psm1
@@ -0,0 +1,112 @@
+$BOOKMARK_PATH = "~\Nextcloud\bookmarks.md"
+
+function Get-Bookmark {
+    [CmdletBinding()]
+    param(
+            [string[]] $args
+         )
+
+    $categories = [System.Collections.ArrayList] @()
+    $names = [System.Collections.ArrayList] @()
+    foreach ($arg in $args) {
+        if ($arg.StartsWith('#')) {
+            [void]$categories.Add($arg)
+        } else {
+            [void]$names.Add($arg)
+        }
+    }
+    Get-Content $BOOKMARK_PATH | FilterByCategory $categories | FilterByName $names
+}
+
+function Open-Bookmark {
+    [CmdletBinding()]
+    param(
+            [string[]] $urls
+         )
+    if ($urls.Length -eq 0) {
+        SearchBookmark
+    } else {
+        Get-Bookmark $urls | OpenUrls
+    }
+}
+
+function FilterByCategory {
+    [CmdletBinding()]
+    param(
+            [string[]] $categories,
+            [Parameter(Mandatory, ValueFromPipeline)] [array] $lines
+         )
+
+    BEGIN {
+        $current_indent = 0
+    }
+    PROCESS {
+        foreach ($line in $lines) {
+            if ($line -match '^(#+) (.*)$') {
+                $heading_indent = $matches[1].Length
+                if ($current_indent -eq 0) {
+                    if ($categories.Contains("$line")) {
+                        $current_indent = $heading_indent
+                    }
+                } else {
+                    if ($heading_indent -le $current_indent) {
+                        $current_indent = 0
+                    }
+                }
+            }
+            if ($current_indent -gt 0) {
+                echo $line
+            }
+        }
+    }
+}
+
+function FilterByName {
+    param(
+            [string[]] $names,
+            [Parameter(ValueFromPipeline)] [array] $lines
+         )
+
+    BEGIN {
+        $pattern = $names -join "|"
+    }
+    PROCESS {
+        if ($names.Length -eq 0) {
+            return $lines
+        }
+        foreach ($line in $lines) {
+            if ($line -match $pattern) {
+                echo $line
+            }
+        }
+    }
+}
+
+function OpenUrls {
+    param(
+            [Parameter(ValueFromPipeline)] [array] $lines
+         )
+
+    PROCESS {
+        foreach ($line in $lines) {
+            if ($line -match '\[(.*?)\]\((.*?)\)') {
+                start $matches[2]
+            }
+        }
+    }
+}
+
+function SearchBookmark {
+    $query = Get-Content $BOOKMARK_PATH | Where {$_.Length -gt 0} | fzf
+    if ($query.Length -eq 0) {
+        return
+    }
+    if ($query -match '^#') {
+        Open-Bookmark $query
+    } else {
+        @($query) | OpenUrls
+    }
+}
+
+Export-ModuleMember -Function Get-Bookmark,Open-Bookmark,FilterByCategory,FilterByName,OpenUrls,SearchBookmark
+