diff --git a/web-next/app/[locale]/log-out/route.ts b/web-next/app/[locale]/log-out/route.ts
index 2bdf192..dca2379 100644
--- a/web-next/app/[locale]/log-out/route.ts
+++ b/web-next/app/[locale]/log-out/route.ts
@@ -18,5 +18,6 @@ export async function GET(_request: Request, { params }: { params: Promise<{ loc
   const session = await getSession()
   session.destroy()
 
+  // La raíz de idioma es canónica CON barra (/es/); el resto de rutas sin barra.
   return new NextResponse(null, { status: 303, headers: { Location: `/${loc}/` } })
 }
diff --git a/web-next/app/[locale]/login/LoginForm.tsx b/web-next/app/[locale]/login/LoginForm.tsx
index 0378039..1efc234 100644
--- a/web-next/app/[locale]/login/LoginForm.tsx
+++ b/web-next/app/[locale]/login/LoginForm.tsx
@@ -38,7 +38,7 @@ export function LoginForm() {
         // Navegación completa (no del lado cliente): fuerza que el servidor
         // re-renderice el layout/cabecera con la sesión nueva. Con router.push
         // el layout persiste y la cabecera seguía mostrando "Conectar".
-        window.location.assign(`/${locale}${data.needsSelection ? '/select-account/' : '/my-account/'}`)
+        window.location.assign(`/${locale}${data.needsSelection ? '/select-account' : '/my-account'}`)
         return
       } else {
         const key = (ERROR_KEYS as readonly string[]).includes(data.error ?? '') ? data.error! : 'genericError'
diff --git a/web-next/app/[locale]/select-account/SelectAccountForm.tsx b/web-next/app/[locale]/select-account/SelectAccountForm.tsx
index 535b5b0..0eb5ea1 100644
--- a/web-next/app/[locale]/select-account/SelectAccountForm.tsx
+++ b/web-next/app/[locale]/select-account/SelectAccountForm.tsx
@@ -28,7 +28,7 @@ export function SelectAccountForm({ accounts }: { accounts: GameAccount[] }) {
       })
       const data: { success?: boolean } = await res.json()
       // Navegación completa: re-renderiza el layout/cabecera con la cuenta ya elegida.
-      if (data.success) window.location.assign(`/${locale}/my-account/`)
+      if (data.success) window.location.assign(`/${locale}/my-account`)
       else {
         setError(t('error'))
         setBusy(null)
diff --git a/web-next/components/SiteHeader.tsx b/web-next/components/SiteHeader.tsx
index b6a7fe6..d14ee71 100644
--- a/web-next/components/SiteHeader.tsx
+++ b/web-next/components/SiteHeader.tsx
@@ -118,7 +118,7 @@ export function SiteHeader({
                   <Link href="/my-account">MI CUENTA</Link>
                 </p>
                 <p>
-                  <a href={`/${locale}/log-out/`}>DESCONECTAR</a>
+                  <a href={`/${locale}/log-out`}>DESCONECTAR</a>
                 </p>
               </div>
             </div>
diff --git a/web-next/middleware.ts b/web-next/middleware.ts
index 9a6d201..3a81c69 100644
--- a/web-next/middleware.ts
+++ b/web-next/middleware.ts
@@ -1,7 +1,31 @@
 import createMiddleware from 'next-intl/middleware'
+import { NextResponse, type NextRequest } from 'next/server'
 import { routing } from './i18n/routing'
 
-export default createMiddleware(routing)
+const intlMiddleware = createMiddleware(routing)
+
+// Raíces de idioma: «/es», «/en». Estas SÍ llevan barra final; el resto NO.
+const LOCALE_ROOTS = new Set(routing.locales.map((l) => `/${l}`))
+
+export default function middleware(request: NextRequest) {
+  const { pathname } = request.nextUrl
+
+  // 1) Raíz de idioma sin barra → con barra: /es → /es/
+  if (LOCALE_ROOTS.has(pathname)) {
+    const url = new URL(request.url)
+    url.pathname = `${pathname}/`
+    return NextResponse.redirect(url)
+  }
+
+  // 2) Sub-ruta con barra final → sin barra (la raíz /es/ se conserva): /es/x/ → /es/x
+  if (pathname.length > 1 && pathname.endsWith('/') && !LOCALE_ROOTS.has(pathname.slice(0, -1))) {
+    const url = new URL(request.url)
+    url.pathname = pathname.replace(/\/+$/, '')
+    return NextResponse.redirect(url)
+  }
+
+  return intlMiddleware(request)
+}
 
 export const config = {
   // Aplica a todo salvo /api, estáticos de Next e ipas con extensión.
diff --git a/web-next/next.config.ts b/web-next/next.config.ts
index 72ff0e1..7f87dfe 100644
--- a/web-next/next.config.ts
+++ b/web-next/next.config.ts
@@ -4,8 +4,10 @@ import createNextIntlPlugin from 'next-intl/plugin'
 const withNextIntl = createNextIntlPlugin('./i18n/request.ts')
 
 const nextConfig: NextConfig = {
-  // URLs con barra final (/es/ en vez de /es), como el sitio original.
-  trailingSlash: true,
+  // Barra final SOLO en la raíz de idioma (/es/, /en/); el resto de rutas SIN
+  // barra (/es/content-creators). Desactivamos el auto-redirect de Next: la
+  // normalización la hace el middleware con lógica estricta de pathname.
+  skipTrailingSlashRedirect: true,
 }
 
 export default withNextIntl(nextConfig)