diff --git a/main.go b/main.go
index 1774e8d..a5dda15 100644
--- a/main.go
+++ b/main.go
@@ -12,6 +12,8 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"os/exec"
+	"strings"
 )
 
 var (
@@ -32,6 +34,8 @@ func main() {
 	http.HandleFunc("/", pageIndex)
 	http.HandleFunc("/css/main.css", pageCSS)
 
+	http.HandleFunc("/browser/start", actionBrowserStart)
+
 	http.HandleFunc("/start", actionStart)
 	http.HandleFunc("/stop/{uuid}", actionStop)
 	http.HandleFunc("/sites", actionSites)
@@ -40,6 +44,20 @@ func main() {
 	http.ListenAndServe("[::]:5123", nil)
 }
 
+func replaceTilde(str string) string {// {{{
+	homedir, err := os.UserHomeDir()
+	if err != nil {
+		log.Println(err)
+		return str
+	}
+
+	if str[0] == '~' {
+		str = strings.Replace(str, "~", homedir, 1)
+	}
+
+	return str
+}// }}}
+
 func pageIndex(w http.ResponseWriter, r *http.Request) { // {{{
 	var tmpl *template.Template
 	var err error
@@ -76,6 +94,17 @@ func actionSites(w http.ResponseWriter, r *http.Request) { // {{{
 	w.Write(j)
 } // }}}
 
+func actionBrowserStart(w http.ResponseWriter, r *http.Request) {// {{{
+	body, _ := io.ReadAll(r.Body)
+	userDataDir := replaceTilde(string(body))
+	browser := exec.Command("google-chrome", "--user-data-dir="+string(userDataDir), "--remote-debugging-port=9222")
+	err := browser.Start()
+	if err != nil {
+		log.Println(err)
+	} else {
+		go browser.Wait()
+	}
+}// }}}
 func actionStart(w http.ResponseWriter, r *http.Request) { // {{{
 	var req struct {
 		URL   string
@@ -97,7 +126,8 @@ func actionStart(w http.ResponseWriter, r *http.Request) { // {{{
 	}
 
 	var site Site
-	site, err = NewSite(flagWsURL, req.URL, req.Watch)
+	expandedWatch := replaceTilde(req.Watch)
+	site, err = NewSite(flagWsURL, req.URL, expandedWatch)
 	if err != nil {
 		log.Println(err)
 	}
diff --git a/static/css/main.css b/static/css/main.css
index 23014e8..5462b71 100644
--- a/static/css/main.css
+++ b/static/css/main.css
@@ -7,15 +7,20 @@ input {
 	font-size: 1em;
 }
 
+.browser {
+	input {
+		width: 350px;
+	}
+}
+
 .new {
-	width: 400px;
+	width: 350px;
 }
 
 .sites {
 	display: grid;
 	grid-template-columns: repeat(3, min-content);
 	grid-gap: 8px 16px;
-	margin-top: 32px;
 
 	div {
 		white-space: nowrap;
diff --git a/static/html/index.html b/static/html/index.html
index 3418ceb..11ac911 100644
--- a/static/html/index.html
+++ b/static/html/index.html
@@ -7,9 +7,23 @@
 	<link rel="stylesheet" type="text/css" href="/css/main.css">
 </head>
 <script>
+	function startBrowser() {
+		const userDataDir = document.querySelector('.user-data-dir').value
+		localStorage.setItem('userdatadir', userDataDir)
+
+		fetch('/browser/start', {
+			method: 'POST',
+			body: userDataDir,
+		})
+	}
+
 	function newSite() {
 		const url = document.querySelector('.new.url').value
 		const watch = document.querySelector('.new.watch').value
+
+		localStorage.setItem('url', url)
+		localStorage.setItem('watch', watch)
+
 		fetch('/start', {
 			method: 'POST',
 			body: JSON.stringify({url, watch}),
@@ -37,19 +51,35 @@
 			})
 	}
 
-	setInterval(siteStatus, 2000)
+	function init() {
+		const userdatadir = localStorage.getItem('userdatadir') || ''
+		const url = localStorage.getItem('url') || ''
+		const watch = localStorage.getItem('watch') || ''
+
+		document.querySelector('.user-data-dir').value = userdatadir
+		document.querySelector('.new.url').value = url
+		document.querySelector('.new.watch').value = watch
+		setInterval(siteStatus, 2000)
+	}
 </script>
 
 <body>
-	<input type="text" class="new url" placeholder="https://example.com" value="https://scan.euterm.n44.se">
-	<input type="text" class="new watch" placeholder="~/example.com/css/"
-		value="/home/magnus/repo/euterm/euscan/static/css">
-	<button onclick="newSite()">Start</button>
+	<div class="browser">
+		<h1>Browser</h1>
+		<input type="text" class="user-data-dir" placeholder="~/.local/share/chrome-dev">
+		<button onclick="startBrowser()">Start</button>
+	</div>
 
+	<h1>CSS reloading</h1>
 	<div class="sites">
-		<div class="header">UUID</div>
 		<div class="header">URL</div>
+		<div class="header">Watch</div>
 		<div class="header"></div>
+		<div class="line"></div>
+
+		<input type="text" class="new url" placeholder="https://example.com">
+		<input type="text" class="new watch" placeholder="~/example.com/css/">
+		<button onclick="newSite()">Start</button>
 
 		{{ range . }}
 		<div class="line"></div>
@@ -58,6 +88,7 @@
 		<div class="stop" onclick="stopSite('{{ .UUID }}')">❌</div>
 		{{ end }}
 	</div>
+	<script>init()</script>
 </body>
 
 </html>
