diff --git a/resources/js/canvas/environment/Select.svelte b/resources/js/canvas/environment/Select.svelte
new file mode 100644
index 0000000000..3ef3ee764a
--- /dev/null
+++ b/resources/js/canvas/environment/Select.svelte
@@ -0,0 +1,76 @@
+<script>
+  // Our listbox (same look as <x-forms.listbox>) instead of the native <select>.
+  // The panel is absolute, not fixed: the zoom controls bar has a backdrop filter,
+  // which makes it the containing block of fixed children.
+
+  let { options, value, label, class: className = '', onchange } = $props();
+
+  let open = $state(false);
+  let above = $state(false);
+  let active = $state(0);
+  let root;
+  let trigger;
+  let list = $state();
+
+  const current = $derived(options.find(o => o.value === value) ?? options[0]);
+
+  function toggle() {
+    if (open) return close();
+    const r = trigger.getBoundingClientRect();
+    above = innerHeight - r.bottom < 280 && r.top > innerHeight - r.bottom;
+    active = Math.max(0, options.findIndex(o => o.value === value));
+    open = true;
+  }
+  function close(focus = false) {
+    open = false;
+    if (focus) trigger.focus();
+  }
+  function pick(option) {
+    close(true);
+    if (option.value !== value) onchange(option.value);
+  }
+  function keys(e) {
+    if (e.key === 'Escape' && open) {
+      e.preventDefault();
+      close(true);
+    } else if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
+      e.preventDefault();
+      if (!open) return toggle();
+      active = (active + (e.key === 'ArrowDown' ? 1 : -1) + options.length) % options.length;
+    } else if (e.key === 'Enter' && open) {
+      e.preventDefault();
+      pick(options[active]);
+    }
+  }
+
+  $effect(() => {
+    if (open) list?.children[active]?.scrollIntoView({ block: 'nearest' });
+  });
+</script>
+
+<svelte:window onpointerdown={e => open && !root.contains(e.target) && close()} />
+
+<div class="relative {className}" bind:this={root} onkeydown={keys} role="presentation">
+  <button type="button" class="listbox-trigger h-8! text-[12px]!" bind:this={trigger} onclick={toggle}
+    aria-haspopup="listbox" aria-expanded={open} aria-label={label} title={label}>
+    <span class="listbox-trigger-label">{current?.label}</span>
+    <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" class="size-3.5 shrink-0 opacity-60">
+      <path stroke-linecap="round" stroke-linejoin="round" d="m8 9 4-4 4 4m0 6-4 4-4-4" />
+    </svg>
+  </button>
+  {#if open}
+    <div class="listbox-panel" style={above ? 'top: auto; bottom: calc(100% + 0.25rem)' : ''} role="listbox" aria-label={label} bind:this={list}>
+      {#each options as option, i (option.value)}
+        <button type="button" class="listbox-option text-[13px]!" style:background={i === active ? 'var(--coollabs-fill)' : null} role="option" aria-selected={option.value === value}
+          onpointerenter={() => (active = i)} onclick={() => pick(option)}>
+          <span class="truncate">{option.label}</span>
+          {#if option.value === value}
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2.5" stroke="currentColor" class="ml-auto size-3.5 shrink-0">
+              <path stroke-linecap="round" stroke-linejoin="round" d="m4.5 12.75 6 6 9-13.5" />
+            </svg>
+          {/if}
+        </button>
+      {/each}
+    </div>
+  {/if}
+</div>
diff --git a/resources/js/canvas/environment/Toolbar.svelte b/resources/js/canvas/environment/Toolbar.svelte
index 2ac3fd0766..3dddad05da 100644
--- a/resources/js/canvas/environment/Toolbar.svelte
+++ b/resources/js/canvas/environment/Toolbar.svelte
@@ -1,11 +1,13 @@
 <script>
   import BetaBadge from '../BetaBadge.svelte';
+  import Select from './Select.svelte';
   // Filters and view toggles. The root docks it (use:dock) into the zoom controls bar
   // (CanvasControls, bottom left) on desktop, or in a rounded box above the canvas on small screens.
 
   let { viewOnly, viewOnlyTitle, filter, projects, environments, views, dock, onfilter } = $props();
 
-  const select = 'select h-8! w-44 py-0! text-[12px]! max-lg:w-auto max-lg:min-w-0 max-lg:flex-1 max-lg:basis-32';
+  const select = 'w-44 max-lg:w-auto max-lg:min-w-0 max-lg:flex-1 max-lg:basis-32';
+  const options = (all, list) => [{ value: '', label: all }, ...list.map(o => ({ value: o.uuid, label: o.name }))];
   const value = (options, wanted) => (options.some(o => o.uuid === wanted) ? wanted : '');
 
   /** Table / grid / canvas switcher from the page (Blade), when the page has one. */
@@ -24,15 +26,13 @@
   <!-- Small screens: the actions wrap onto more rows instead of covering the title. -->
   <div class="ml-auto flex shrink-0 items-center gap-2 max-lg:min-w-0 max-lg:shrink max-lg:flex-wrap" use:adopt={views}>
     <!-- Connect and server views: show the resources of one project and / or environment only. -->
-    <select class={select} class:hidden={projects.length < 2} aria-label="Filter by project" title="Filter by project"
-      value={value(projects, filter.project)} onchange={e => onfilter({ project: e.currentTarget.value, environment: '' })}>
-      <option value="">All projects</option>
-      {#each projects as o (o.uuid)}<option value={o.uuid}>{o.name}</option>{/each}
-    </select>
-    <select class={select} class:hidden={environments.length < 2} aria-label="Filter by environment" title="Filter by environment"
-      value={value(environments, filter.environment)} onchange={e => onfilter({ ...filter, environment: e.currentTarget.value })}>
-      <option value="">All environments</option>
-      {#each environments as o (o.uuid)}<option value={o.uuid}>{o.name}</option>{/each}
-    </select>
+    {#if projects.length > 1}
+      <Select class={select} label="Filter by project" value={value(projects, filter.project)}
+        options={options('All projects', projects)} onchange={project => onfilter({ project, environment: '' })} />
+    {/if}
+    {#if environments.length > 1}
+      <Select class={select} label="Filter by environment" value={value(environments, filter.environment)}
+        options={options('All environments', environments)} onchange={environment => onfilter({ ...filter, environment })} />
+    {/if}
   </div>
 </div>