diff --git a/src/server/apps.ts b/src/server/apps.ts
index 4bc7a9d..1224134 100644
--- a/src/server/apps.ts
+++ b/src/server/apps.ts
@@ -96,7 +96,8 @@ export function readLogs(appName: string, date?: string, tail?: number): string[
   return lines
 }
 
-export function initApps() {
+export async function initApps() {
+  await killStaleProcesses()
   initPortPool()
   setupShutdownHandlers()
   rotateLogs()
@@ -466,6 +467,25 @@ function handleHealthCheckFailure(app: App) {
   }
 }
 
+async function killStaleProcesses() {
+  const result = Bun.spawnSync(['lsof', '-ti', `:${MIN_PORT - 1}-${MAX_PORT}`])
+  const output = result.stdout.toString().trim()
+  if (!output) return
+
+  const pids = output.split('\n').map(Number).filter(pid => pid && pid !== process.pid)
+  if (pids.length === 0) return
+
+  hostLog(`Found ${pids.length} stale process(es) on ports ${MIN_PORT - 1}-${MAX_PORT}`)
+  for (const pid of pids) {
+    try {
+      process.kill(pid, 'SIGKILL')
+      hostLog(`Killed stale process ${pid}`)
+    } catch {
+      // Process already gone
+    }
+  }
+}
+
 function initPortPool() {
   _availablePorts.length = 0
   for (let port = MIN_PORT; port <= MAX_PORT; port++) {
diff --git a/src/server/index.tsx b/src/server/index.tsx
index 53bb048..248cb78 100644
--- a/src/server/index.tsx
+++ b/src/server/index.tsx
@@ -53,7 +53,7 @@ app.all('/api/tools/:tool/:path{.+}', async c => {
   })
 })
 
-initApps()
+await initApps()
 
 export default {
   ...app.defaults,