diff --git a/.changeset/collapsible-filter-sidebar.md b/.changeset/collapsible-filter-sidebar.md
new file mode 100644
index 00000000..de1aec7e
--- /dev/null
+++ b/.changeset/collapsible-filter-sidebar.md
@@ -0,0 +1,5 @@
+---
+"@hyperdx/app": patch
+---
+
+feat: Add collapsible filter sidebar toggle to search page
diff --git a/agent_docs/code_style.md b/agent_docs/code_style.md
index 6d42f333..70ef10ed 100644
--- a/agent_docs/code_style.md
+++ b/agent_docs/code_style.md
@@ -37,13 +37,25 @@ The project uses Mantine UI with **custom variants** defined in `packages/app/sr
 | `variant="secondary"` | Secondary actions (Cancel, Clear, auxiliary actions) | `<Button variant="secondary">Cancel</Button>` |
 | `variant="danger"` | Destructive actions (Delete, Remove, Rotate API Key) | `<Button variant="danger">Delete</Button>` |
 | `variant="link"` | Link-style actions with no background or border (View Details, navigation-style CTAs) | `<Button variant="link">View Details</Button>` |
+| `variant="subtle"` | **ActionIcon only.** Transparent background with hover highlight; for toolbar/utility icons that shouldn't draw attention until hovered (collapse toggles, close buttons, auxiliary controls) | `<ActionIcon variant="subtle">...</ActionIcon>` |
+
+### Correct Usage
+
+```tsx
+<Button variant="primary">Save</Button>
+<Button variant="secondary">Cancel</Button>
+<Button variant="danger">Delete</Button>
+<Button variant="link">View Details</Button>
+<ActionIcon variant="primary">...</ActionIcon>
+<ActionIcon variant="secondary">...</ActionIcon>
+<ActionIcon variant="danger">...</ActionIcon>
+<ActionIcon variant="link">...</ActionIcon>
+<ActionIcon variant="subtle">...</ActionIcon>
+```
 
 ### DO NOT USE (Forbidden Patterns)
 
-The following patterns are **NOT ALLOWED** for Button and ActionIcon:
-
 ```tsx
-// ❌ WRONG - Don't use these
 <Button variant="light" color="green">Save</Button>
 <Button variant="light" color="gray">Cancel</Button>
 <Button variant="light" color="red">Delete</Button>
@@ -54,20 +66,12 @@ The following patterns are **NOT ALLOWED** for Button and ActionIcon:
 <Button variant="default">Cancel</Button>
 <ActionIcon variant="light" color="red">...</ActionIcon>
 <ActionIcon variant="filled" color="gray">...</ActionIcon>
-
-// ✅ CORRECT - Use custom variants
-<Button variant="primary">Save</Button>
-<Button variant="secondary">Cancel</Button>
-<Button variant="danger">Delete</Button>
-<Button variant="link">View Details</Button>
-<ActionIcon variant="primary">...</ActionIcon>
-<ActionIcon variant="secondary">...</ActionIcon>
-<ActionIcon variant="danger">...</ActionIcon>
-<ActionIcon variant="link">...</ActionIcon>
 ```
 
 **Link variant details**: Renders with no background, no border, and muted text color. On hover, text brightens to full contrast. Use for link-style CTAs that should blend into surrounding content (e.g., "View Details", "View Full Trace").
 
+**Subtle variant details (ActionIcon only)**: Transparent background with standard text color. On hover, a subtle background highlight appears (`--color-bg-hover`). This is the **default** ActionIcon variant. Use for toolbar icons, collapse toggles, close buttons, and utility controls that should stay unobtrusive but reveal interactivity on hover. Unlike `link`, `subtle` shows a hover background rather than changing text color.
+
 **Note**: `variant="filled"` is still valid for **form inputs** (Select, TextInput, etc.), just not for Button/ActionIcon.
 
 ### Icon-Only Buttons → ActionIcon
diff --git a/packages/app/src/DBSearchPage.tsx b/packages/app/src/DBSearchPage.tsx
index 0cbd8026..1d2a1439 100644
--- a/packages/app/src/DBSearchPage.tsx
+++ b/packages/app/src/DBSearchPage.tsx
@@ -64,6 +64,7 @@ import {
 import { notifications } from '@mantine/notifications';
 import {
   IconBolt,
+  IconLayoutSidebarLeftExpand,
   IconPlayerPlay,
   IconPlus,
   IconTags,
@@ -171,6 +172,8 @@ const SearchConfigSchema = z.object({
 
 type SearchConfigFromSchema = z.infer<typeof SearchConfigSchema>;
 
+const QUERY_KEY_PREFIX = 'search';
+
 // Helper function to get the default source id
 export function getDefaultSourceId(
   sources: { id: string }[] | undefined,
@@ -261,6 +264,46 @@ function SearchSubmitButton({
   );
 }
 
+function ExpandFiltersButton({ onExpand }: { onExpand: () => void }) {
+  return (
+    <Tooltip label="Show filters" position="bottom">
+      <ActionIcon
+        variant="subtle"
+        size="xs"
+        onClick={onExpand}
+        aria-label="Show filters"
+      >
+        <IconLayoutSidebarLeftExpand size={14} />
+      </ActionIcon>
+    </Tooltip>
+  );
+}
+
+function SearchResultsCountGroup({
+  isFilterSidebarCollapsed,
+  onExpandFilters,
+  histogramTimeChartConfig,
+  enableParallelQueries,
+}: {
+  isFilterSidebarCollapsed: boolean;
+  onExpandFilters: () => void;
+  histogramTimeChartConfig: BuilderChartConfigWithDateRange;
+  enableParallelQueries?: boolean;
+}) {
+  return (
+    <Group gap={4} align="center">
+      {isFilterSidebarCollapsed && (
+        <ExpandFiltersButton onExpand={onExpandFilters} />
+      )}
+      <SearchTotalCountChart
+        config={histogramTimeChartConfig}
+        queryKeyPrefix={QUERY_KEY_PREFIX}
+        enableParallelQueries={enableParallelQueries}
+      />
+    </Group>
+  );
+}
+
 function SearchNumRows({
   config,
   enabled,
@@ -278,7 +321,7 @@ function SearchNumRows({
 
   const numRows = data?.[0]?.rows;
   return (
-    <Text size="xs" mb={4}>
+    <Text size="xs">
       {isLoading
         ? 'Scanned Rows ...'
         : error || !numRows
@@ -812,6 +855,9 @@ function DBSearchPage() {
     }
   }, [analysisMode, setIsLive]);
 
+  const [isFilterSidebarCollapsed, setIsFilterSidebarCollapsed] =
+    useLocalStorage<boolean>('isFilterSidebarCollapsed', false);
+
   const [denoiseResults, _setDenoiseResults] = useQueryState(
     'denoise',
     parseAsBoolean.withDefault(false),
@@ -1174,8 +1220,6 @@ function DBSearchPage() {
 
   const [newSourceModalOpened, setNewSourceModalOpened] = useState(false);
 
-  const QUERY_KEY_PREFIX = 'search';
-
   const isAnyQueryFetching =
     useIsFetching({
       queryKey: [QUERY_KEY_PREFIX],
@@ -1761,33 +1805,43 @@ function DBSearchPage() {
                 height: '100%',
               }}
             >
-              <ErrorBoundary message="Unable to render search filters">
-                <DBSearchPageFilters
-                  denoiseResults={denoiseResults}
-                  setDenoiseResults={setDenoiseResults}
-                  isLive={isLive}
-                  analysisMode={analysisMode}
-                  setAnalysisMode={setAnalysisMode}
-                  chartConfig={filtersChartConfig}
-                  sourceId={inputSourceObj?.id}
-                  showDelta={
-                    !!(searchedSource?.kind === SourceKind.Trace
-                      ? searchedSource.durationExpression
-                      : undefined)
-                  }
-                  onColumnToggle={toggleColumn}
-                  displayedColumns={displayedColumns}
-                  {...searchFilters}
-                />
-              </ErrorBoundary>
+              {!isFilterSidebarCollapsed && (
+                <ErrorBoundary message="Unable to render search filters">
+                  <DBSearchPageFilters
+                    denoiseResults={denoiseResults}
+                    setDenoiseResults={setDenoiseResults}
+                    isLive={isLive}
+                    analysisMode={analysisMode}
+                    setAnalysisMode={setAnalysisMode}
+                    chartConfig={filtersChartConfig}
+                    sourceId={inputSourceObj?.id}
+                    showDelta={
+                      !!(searchedSource?.kind === SourceKind.Trace
+                        ? searchedSource.durationExpression
+                        : undefined)
+                    }
+                    onColumnToggle={toggleColumn}
+                    displayedColumns={displayedColumns}
+                    onCollapse={() => setIsFilterSidebarCollapsed(true)}
+                    {...searchFilters}
+                  />
+                </ErrorBoundary>
+              )}
               {analysisMode === 'pattern' &&
                 histogramTimeChartConfig != null && (
                   <Flex direction="column" w="100%" gap="0px" mih="0" miw={0}>
                     <Box className={searchPageStyles.searchStatsContainer}>
-                      <Group justify="space-between" style={{ width: '100%' }}>
-                        <SearchTotalCountChart
-                          config={histogramTimeChartConfig}
-                          queryKeyPrefix={QUERY_KEY_PREFIX}
+                      <Group
+                        justify="space-between"
+                        align="center"
+                        style={{ width: '100%' }}
+                      >
+                        <SearchResultsCountGroup
+                          isFilterSidebarCollapsed={isFilterSidebarCollapsed}
+                          onExpandFilters={() =>
+                            setIsFilterSidebarCollapsed(false)
+                          }
+                          histogramTimeChartConfig={histogramTimeChartConfig}
                         />
                         <SearchNumRows
                           config={{
@@ -1855,11 +1909,15 @@ function DBSearchPage() {
                       <Box className={searchPageStyles.searchStatsContainer}>
                         <Group
                           justify="space-between"
+                          align="center"
                           style={{ width: '100%' }}
                         >
-                          <SearchTotalCountChart
-                            config={histogramTimeChartConfig}
-                            queryKeyPrefix={QUERY_KEY_PREFIX}
+                          <SearchResultsCountGroup
+                            isFilterSidebarCollapsed={isFilterSidebarCollapsed}
+                            onExpandFilters={() =>
+                              setIsFilterSidebarCollapsed(false)
+                            }
+                            histogramTimeChartConfig={histogramTimeChartConfig}
                             enableParallelQueries
                           />
                           <Group gap="sm" align="center">
diff --git a/packages/app/src/components/DBSearchPageFilters.tsx b/packages/app/src/components/DBSearchPageFilters.tsx
index 6f65f917..025a0bdc 100644
--- a/packages/app/src/components/DBSearchPageFilters.tsx
+++ b/packages/app/src/components/DBSearchPageFilters.tsx
@@ -36,6 +36,7 @@ import {
   IconChevronRight,
   IconChevronUp,
   IconFilterOff,
+  IconLayoutSidebarLeftCollapse,
   IconMinus,
   IconPin,
   IconPinFilled,
@@ -875,6 +876,7 @@ const DBSearchPageFiltersComponent = ({
   setFilterRange,
   onColumnToggle,
   displayedColumns,
+  onCollapse,
 }: {
   analysisMode: 'results' | 'delta' | 'pattern';
   setAnalysisMode: (mode: 'results' | 'delta' | 'pattern') => void;
@@ -887,6 +889,7 @@ const DBSearchPageFiltersComponent = ({
   setFilterRange: (key: string, range: { min: number; max: number }) => void;
   onColumnToggle?: (column: string) => void;
   displayedColumns?: string[];
+  onCollapse?: () => void;
 } & FilterStateHook) => {
   const setFilterValue = useCallback(
     (
@@ -1203,9 +1206,23 @@ const DBSearchPageFiltersComponent = ({
         }}
       >
         <Stack gap="sm" p="xs">
-          <Text size="xxs" c="dimmed" fw="bold">
-            Analysis Mode
-          </Text>
+          <Flex align="center" justify="space-between">
+            <Text size="xxs" c="dimmed" fw="bold">
+              Analysis Mode
+            </Text>
+            {onCollapse && (
+              <Tooltip label="Hide filters" position="bottom">
+                <ActionIcon
+                  variant="subtle"
+                  size="xs"
+                  onClick={onCollapse}
+                  aria-label="Hide filters"
+                >
+                  <IconLayoutSidebarLeftCollapse size={14} />
+                </ActionIcon>
+              </Tooltip>
+            )}
+          </Flex>
           <Tabs
             value={analysisMode}
             onChange={value =>
diff --git a/packages/app/src/components/SearchTotalCountChart.tsx b/packages/app/src/components/SearchTotalCountChart.tsx
index ce2fde71..e9653cda 100644
--- a/packages/app/src/components/SearchTotalCountChart.tsx
+++ b/packages/app/src/components/SearchTotalCountChart.tsx
@@ -103,7 +103,7 @@ export default function SearchTotalCountChart({
   );
 
   return (
-    <Text size="xs" mb={4}>
+    <Text size="xs" lh="normal">
       {isLoading ? (
         <span className="effect-pulse">&middot;&middot;&middot; Results</span>
       ) : totalCount !== null && !isError ? (