diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
index 7307d22..6c35c89 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
@@ -10,14 +10,30 @@
   type ViewModel = List[UserRow.ViewModel]
 
   def apply($m: Signal[ViewModel]): HtmlElement =
+    val (actionsStream, actionObserver) =
+      EventStream.withObserver[SearchForm.Action]
+    val $filter = actionsStream
+      .collect { case ev: SearchForm.FilterAction =>
+        ev
+      }
+      .startWith(SearchForm.NoFilter)
     val byLetter = for {
       d <- $m
+      f <- $filter
     } yield for {
-      (letter, users) <- d.groupBy(_.prijmeni.head).to(List).sortBy(_._1)
+      (letter, users) <- d
+        .filter { user =>
+          f match
+            case SearchForm.NoFilter  => true
+            case SearchForm.Filter(t) => user.search.contains(t)
+        }
+        .groupBy(_.prijmeni.head)
+        .to(List)
+        .sortBy(_._1)
     } yield (letter.toString, users.sortBy(_.prijmeni))
 
     div(
       cls := "h-full max-w-7xl mx-auto order-first flex flex-col flex-shrink-0",
-      SearchForm(),
+      SearchForm(actionObserver),
       Directory(byLetter)
     )

diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
index 7307d22..6c35c89 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
@@ -10,14 +10,30 @@
   type ViewModel = List[UserRow.ViewModel]
 
   def apply($m: Signal[ViewModel]): HtmlElement =
+    val (actionsStream, actionObserver) =
+      EventStream.withObserver[SearchForm.Action]
+    val $filter = actionsStream
+      .collect { case ev: SearchForm.FilterAction =>
+        ev
+      }
+      .startWith(SearchForm.NoFilter)
     val byLetter = for {
       d <- $m
+      f <- $filter
     } yield for {
-      (letter, users) <- d.groupBy(_.prijmeni.head).to(List).sortBy(_._1)
+      (letter, users) <- d
+        .filter { user =>
+          f match
+            case SearchForm.NoFilter  => true
+            case SearchForm.Filter(t) => user.search.contains(t)
+        }
+        .groupBy(_.prijmeni.head)
+        .to(List)
+        .sortBy(_._1)
     } yield (letter.toString, users.sortBy(_.prijmeni))
 
     div(
       cls := "h-full max-w-7xl mx-auto order-first flex flex-col flex-shrink-0",
-      SearchForm(),
+      SearchForm(actionObserver),
       Directory(byLetter)
     )
diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
index 7144950..7e1a5d9 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
@@ -4,7 +4,12 @@
 import cz.e_bs.cmi.mdr.pdb.app.components.Icons
 
 object SearchForm:
-  def apply(): HtmlElement =
+  sealed trait Action
+  sealed trait FilterAction extends Action
+  case object NoFilter extends FilterAction
+  case class Filter(value: String) extends FilterAction
+
+  def apply(actions: Observer[Action]): HtmlElement =
     div(
       cls := "px-6 pt-4 pb-4",
       form(
@@ -15,7 +20,7 @@
           label(
             forId := "search",
             cls := "sr-only",
-            """Search"""
+            "Hledat"
           ),
           div(
             cls := "relative rounded-md shadow-sm",
@@ -28,7 +33,8 @@
               name := "search",
               idAttr := "search",
               cls := "focus:ring-pink-500 focus:border-pink-500 block w-full pl-10 sm:text-sm border-gray-300 rounded-md",
-              placeholder := "Search"
+              placeholder := "Hledat",
+              onInput.mapToValue.setAsValue.map(Filter(_)) --> actions
             )
           )
         ),
@@ -38,7 +44,7 @@
           Icons.solid.filter().amend(svg.cls := "text-gray-400"),
           span(
             cls := "sr-only",
-            """Search"""
+            "Hledat"
           )
         )
       )

diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
index 7307d22..6c35c89 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/DirectoryPage.scala
@@ -10,14 +10,30 @@
   type ViewModel = List[UserRow.ViewModel]
 
   def apply($m: Signal[ViewModel]): HtmlElement =
+    val (actionsStream, actionObserver) =
+      EventStream.withObserver[SearchForm.Action]
+    val $filter = actionsStream
+      .collect { case ev: SearchForm.FilterAction =>
+        ev
+      }
+      .startWith(SearchForm.NoFilter)
     val byLetter = for {
       d <- $m
+      f <- $filter
     } yield for {
-      (letter, users) <- d.groupBy(_.prijmeni.head).to(List).sortBy(_._1)
+      (letter, users) <- d
+        .filter { user =>
+          f match
+            case SearchForm.NoFilter  => true
+            case SearchForm.Filter(t) => user.search.contains(t)
+        }
+        .groupBy(_.prijmeni.head)
+        .to(List)
+        .sortBy(_._1)
     } yield (letter.toString, users.sortBy(_.prijmeni))
 
     div(
       cls := "h-full max-w-7xl mx-auto order-first flex flex-col flex-shrink-0",
-      SearchForm(),
+      SearchForm(actionObserver),
       Directory(byLetter)
     )
diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
index 7144950..7e1a5d9 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/SearchForm.scala
@@ -4,7 +4,12 @@
 import cz.e_bs.cmi.mdr.pdb.app.components.Icons
 
 object SearchForm:
-  def apply(): HtmlElement =
+  sealed trait Action
+  sealed trait FilterAction extends Action
+  case object NoFilter extends FilterAction
+  case class Filter(value: String) extends FilterAction
+
+  def apply(actions: Observer[Action]): HtmlElement =
     div(
       cls := "px-6 pt-4 pb-4",
       form(
@@ -15,7 +20,7 @@
           label(
             forId := "search",
             cls := "sr-only",
-            """Search"""
+            "Hledat"
           ),
           div(
             cls := "relative rounded-md shadow-sm",
@@ -28,7 +33,8 @@
               name := "search",
               idAttr := "search",
               cls := "focus:ring-pink-500 focus:border-pink-500 block w-full pl-10 sm:text-sm border-gray-300 rounded-md",
-              placeholder := "Search"
+              placeholder := "Hledat",
+              onInput.mapToValue.setAsValue.map(Filter(_)) --> actions
             )
           )
         ),
@@ -38,7 +44,7 @@
           Icons.solid.filter().amend(svg.cls := "text-gray-400"),
           span(
             cls := "sr-only",
-            """Search"""
+            "Hledat"
           )
         )
       )
diff --git a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/UserRow.scala b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/UserRow.scala
index 39da83e..4e6f76d 100644
--- a/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/UserRow.scala
+++ b/app/src/main/scala/cz/e_bs/cmi/mdr/pdb/app/pages/directory/components/UserRow.scala
@@ -12,7 +12,9 @@
       hlavniFunkce: Option[String],
       img: Option[String],
       container: HtmlElement = div()
-  )
+  ) {
+    val search = prijmeni.toLowerCase
+  }
 
   def apply($m: Signal[ViewModel]): HtmlElement =
     inline def avatarImage =