diff --git a/src/index.js b/src/index.js
index eb46431..eb5e817 100644
--- a/src/index.js
+++ b/src/index.js
@@ -12,7 +12,7 @@ import { promptUpload } from "./prompt_upload.js";
 import { GamelibCompleter } from "./gamelib_completer.js";
 import { TextCompleter } from "./text_completer.js";
 import { ConsoleInput } from "./console_input.js";
-import { downloadFile } from "./utils.js";
+import { downloadFile, slugify } from "./utils.js";
 import { HtmlExporter } from "./html_exporter.js";
 
 const playgroundConsole = new PlaygroundConsole(
@@ -47,12 +47,6 @@ globalThis.karlkoder = {
     },
 };
 
-addEventListener("keydown", (ev) => {
-    if (ev.ctrlKey && ev.key === "s") {
-        ev.preventDefault();
-        saveKarlKoder();
-    }
-});
 
 const editor = ace.edit("editor");
 editor.setTheme("ace/theme/gruvbox");
@@ -130,17 +124,27 @@ runButton.onclick = () => {
 exportButton.onclick = async () => {
     const html = await htmlExporter.export(projectName.value, editor.getValue());
 
-    downloadFile(html, ".html", "text/html");
+    downloadFile(slugify(projectName.value) || 'project', html, ".html", "text/html");
 };
 
-saveButton.onclick = () => {
+function saveKarlKoder() {
     downloadFile(
+        slugify(projectName.value) || 'project',
         Vermiparous.en(
             editor.getValue(),
             spriteEditor.sprites,
         ),
         ".karlkode",
     );
-};
+}
+
+saveButton.onclick = () => saveKarlKoder();
+
+addEventListener("keydown", (ev) => {
+    if (ev.ctrlKey && ev.key === "s") {
+        ev.preventDefault();
+        saveKarlKoder();
+    }
+});
 
 toggleSpriteEditorButton.addEventListener("click", () => spriteEditor.toggleEditor());
diff --git a/src/utils.js b/src/utils.js
index 1fe23c8..20f98f6 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -1,14 +1,11 @@
-export function downloadFile(content, extension, mime) {
-    const filename = prompt("Filename?");
-    if (filename === null) return;
-
+export function downloadFile(name, content, extension, mime) {
     const blob = new Blob([content], { type: mime });
     const url = URL.createObjectURL(blob);
 
     const element = document.createElement("a");
 
     element.href = url;
-    element.download = filename.endsWith(extension) ? filename : filename + extension;
+    element.download = name + extension;
     element.style.display = "none";
 
     document.body.appendChild(element);
@@ -18,6 +15,13 @@ export function downloadFile(content, extension, mime) {
     document.body.removeChild(element);
 }
 
+export function slugify(text) {
+    return text
+        .split(/\W+/)
+        .map(word => word.toLowerCase())
+        .join("-");
+}
+
 export function minifyJs(code) {
     return code
         .replace(/[\s\n]+/g, " ")