diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5cfea87..d8e0724 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,12 +4,13 @@ Release notes and changelogs are published on the **[project blog](https://fulll
 
 Each release entry covers the motivation, new features, breaking changes (if any), and upgrade notes.
 
-| Version                                                                  | Blog post                                                  |
-| ------------------------------------------------------------------------ | ---------------------------------------------------------- |
-| [v1.5.0](https://fulll.github.io/github-code-search/blog/release-v1-5-0) | Advanced filter targets, regex mode, word-jump, scroll fix |
-| [v1.4.0](https://fulll.github.io/github-code-search/blog/release-v1-4-0) | TUI visual overhaul, community files, demo animation       |
-| [v1.3.0](https://fulll.github.io/github-code-search/blog/release-v1-3-0) | Team-prefix grouping, replay command, JSON output          |
-| [v1.0.0](https://fulll.github.io/github-code-search/blog/release-v1-0-0) | Initial release                                            |
+| Version                                                                  | Blog post                                                                            |
+| ------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ |
+| [v1.6.0](https://fulll.github.io/github-code-search/blog/release-v1-6-0) | Power navigation: global fold/unfold, gg/G top/bottom, paged scroll, open-in-browser |
+| [v1.5.0](https://fulll.github.io/github-code-search/blog/release-v1-5-0) | Advanced filter targets, regex mode, word-jump, scroll fix                           |
+| [v1.4.0](https://fulll.github.io/github-code-search/blog/release-v1-4-0) | TUI visual overhaul, community files, demo animation                                 |
+| [v1.3.0](https://fulll.github.io/github-code-search/blog/release-v1-3-0) | Team-prefix grouping, replay command, JSON output                                    |
+| [v1.0.0](https://fulll.github.io/github-code-search/blog/release-v1-0-0) | Initial release                                                                      |
 
 > For the full list of commits between releases, see the
 > [GitHub Releases page](https://github.com/fulll/github-code-search/releases).
diff --git a/demo/demo.gif b/demo/demo.gif
index 22d4607..e03a0af 100644
Binary files a/demo/demo.gif and b/demo/demo.gif differ
diff --git a/demo/demo.tape b/demo/demo.tape
index bce0904..cbef9c0 100644
--- a/demo/demo.tape
+++ b/demo/demo.tape
@@ -36,17 +36,15 @@ Enter
 # Wait for results to load (API call + TUI render)
 Sleep 4s
 
-# ── Navigate down a few rows ──────────────────────────────────────────────────
-Down
-Sleep 300ms
-Down
-Sleep 300ms
+# ── Fold all repos — Z gives a compact bird's-eye view ────────────────────────
+Type "Z"
+Sleep 800ms
 
-# ── Toggle selection off on current extract ───────────────────────────────────
-Space
-Sleep 400ms
+# ── Unfold all repos — Z again expands everything ─────────────────────────────
+Type "Z"
+Sleep 800ms
 
-# ── Filter by file path (default target) ──────────────────────────────────────
+# ── Filter by file path to focus on YAML files ────────────────────────────────
 Type "f"
 Sleep 300ms
 Type ".yml"
@@ -54,34 +52,25 @@ Sleep 600ms
 Enter
 Sleep 500ms
 
-# ── Select all visible (filtered) rows ────────────────────────────────────────
+# ── Jump to top with gg ───────────────────────────────────────────────────────
+Type "g"
+Sleep 150ms
+Type "g"
+Sleep 500ms
+
+# ── Select all visible (filtered) results ─────────────────────────────────────
 Type "a"
 Sleep 500ms
 
-# ── Reset filter ──────────────────────────────────────────────────────────────
-Type "r"
+# ── Jump to bottom with G to inspect the last match ───────────────────────────
+Type "G"
 Sleep 600ms
 
-# ── Switch to repo filter mode and filter by repo name ────────────────────────
-# Press t twice: path → content → repo
-Type "t"
-Sleep 300ms
-Type "t"
-Sleep 400ms
-
-# Enter filter mode and type a repo name fragment
-Type "f"
-Sleep 300ms
-Type "toolkit"
-Sleep 700ms
-Enter
-Sleep 500ms
-
-# Select all repos matching the filter
-Type "a"
-Sleep 500ms
+# ── Open the focused file directly in the browser ─────────────────────────────
+Type "o"
+Sleep 600ms
 
-# ── Reset and confirm ─────────────────────────────────────────────────────────
+# ── Reset filter and confirm selection ────────────────────────────────────────
 Type "r"
 Sleep 600ms
 Enter
diff --git a/docs/blog/index.md b/docs/blog/index.md
index ae09778..6e655d6 100644
--- a/docs/blog/index.md
+++ b/docs/blog/index.md
@@ -11,6 +11,7 @@ Full release notes and changelogs are always available on
 
 | Release                    | Highlights                                                                                            |
 | -------------------------- | ----------------------------------------------------------------------------------------------------- |
+| [v1.6.0](./release-v1-6-0) | Power navigation: global fold/unfold (`Z`), Vim `gg`/`G` jumps, paged scroll, open-in-browser (`o`)   |
 | [v1.5.0](./release-v1-5-0) | Advanced filter targets (content/path/repo), regex mode, word-jump shortcuts, scroll accuracy fix     |
 | [v1.4.0](./release-v1-4-0) | TUI visual overhaul, violet branding, demo animation, SECURITY / Code of Conduct, README improvements |
 | [v1.3.0](./release-v1-3-0) | Richer upgrade output, update-available notice, colorized `--help`, deep doc links, What's New blog   |
diff --git a/docs/blog/release-v1-6-0.md b/docs/blog/release-v1-6-0.md
new file mode 100644
index 0000000..30449aa
--- /dev/null
+++ b/docs/blog/release-v1-6-0.md
@@ -0,0 +1,64 @@
+---
+title: "What's new in v1.6.0"
+description: "Power navigation shortcuts: global fold/unfold, Vim-style gg/G top/bottom jumps, paged scrolling with Page Up/Down and Ctrl+U/D, and open-in-browser for any result."
+date: 2026-03-02
+---
+
+# What's new in github-code-search v1.6.0
+
+> Full release notes: <https://github.com/fulll/github-code-search/releases/tag/v1.6.0>
+
+## Highlights
+
+### Global fold / unfold — `Z`
+
+Press **`Z`** to collapse every repository in one keystroke. Press `Z` again to expand them all at once.
+
+The logic is straightforward:
+
+- If at least one repo is currently expanded, `Z` folds everything.
+- If every repo is already folded, `Z` unfolds everything.
+
+The cursor tracks the repository it was positioned on before the fold, so you never lose your place in the list.
+
+### Vim-style top / bottom navigation — `gg` and `G`
+
+| Shortcut | Action                       |
+| -------- | ---------------------------- |
+| `gg`     | Jump to the **first** result |
+| `G`      | Jump to the **last** result  |
+
+`gg` triggers on two consecutive `g` keypresses. Both shortcuts skip over section headers produced by `--group-by-team-prefix`, landing only on repo or extract rows.
+
+### Paged scrolling — `Page Up`/`Page Down` and `Ctrl+U`/`Ctrl+D`
+
+Scroll through large result sets without holding an arrow key:
+
+| Shortcut               | Action               |
+| ---------------------- | -------------------- |
+| `Page Up` / `Ctrl+U`   | Scroll up one page   |
+| `Page Down` / `Ctrl+D` | Scroll down one page |
+
+Page size is computed from the actual terminal height, so the jump covers exactly what is visible on screen.
+
+### Open-in-browser — `o`
+
+Press **`o`** on any focused row to open the corresponding page directly in your default browser — no copy-paste required.
+
+| Row type    | Opens                            |
+| ----------- | -------------------------------- |
+| Repo row    | The GitHub repository page       |
+| Extract row | The exact file in the repository |
+
+Works on macOS (`open`), Linux (`xdg-open`), and Windows (`cmd /c start`).
+
+---
+
+## Upgrade
+
+```bash
+github-code-search upgrade
+```
+
+Or grab the latest binary directly from the
+[GitHub Releases page](https://github.com/fulll/github-code-search/releases/tag/v1.6.0).
diff --git a/docs/reference/keyboard-shortcuts.md b/docs/reference/keyboard-shortcuts.md
index 49377c5..bf4a8b0 100644
--- a/docs/reference/keyboard-shortcuts.md
+++ b/docs/reference/keyboard-shortcuts.md
@@ -1,15 +1,20 @@
 # Keyboard shortcuts
 
-All shortcuts are active in the interactive TUI. Keys are **case-sensitive** and must be typed in lowercase.
+All shortcuts are active in the interactive TUI. Keys are **case-sensitive** — most use lowercase letters, but a few bindings (such as `Z` and `G`) require an uppercase letter.
 
 ## Navigation
 
-| Key       | Action                                |
-| --------- | ------------------------------------- |
-| `↑` / `k` | Move cursor up (repos and extracts)   |
-| `↓` / `j` | Move cursor down (repos and extracts) |
-| `←`       | Fold the repo under the cursor        |
-| `→`       | Unfold the repo under the cursor      |
+| Key                    | Action                                                                                     |
+| ---------------------- | ------------------------------------------------------------------------------------------ |
+| `↑` / `k`              | Move cursor up (repos and extracts)                                                        |
+| `↓` / `j`              | Move cursor down (repos and extracts)                                                      |
+| `←`                    | Fold the repo under the cursor                                                             |
+| `→`                    | Unfold the repo under the cursor                                                           |
+| `Z`                    | **Global fold / unfold** — fold all repos if any is unfolded; unfold all if all are folded |
+| `gg`                   | Jump to the **top** (first result)                                                         |
+| `G`                    | Jump to the **bottom** (last result)                                                       |
+| `Page Up` / `Ctrl+U`   | Scroll up one full page                                                                    |
+| `Page Down` / `Ctrl+D` | Scroll down one full page                                                                  |
 
 Section header rows (shown when `--group-by-team-prefix` is active) are skipped automatically during navigation.
 
@@ -20,6 +25,7 @@ Section header rows (shown when `--group-by-team-prefix` is active) are skipped
 | `Space` | Toggle selection on the current repo or extract. On a repo row: cascades to all its extracts.                                                              |
 | `a`     | Select **all**. On a repo row: selects all repos and their extracts. On an extract row: selects all extracts in the current repo. Respects active filters. |
 | `n`     | Select **none**. Same context rules as `a`. Respects active filters.                                                                                       |
+| `o`     | **Open in browser** — opens the focused item in the default browser. On a repo row: opens the repository page. On an extract row: opens the file directly. |
 
 ## Filtering
 
diff --git a/package.json b/package.json
index 557897d..9e9b523 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "github-code-search",
-  "version": "1.5.0",
+  "version": "1.6.0",
   "description": "Interactive GitHub code search with per-repo aggregation",
   "keywords": [
     "bun",
diff --git a/src/render.test.ts b/src/render.test.ts
index 3e33c48..6e020cd 100644
--- a/src/render.test.ts
+++ b/src/render.test.ts
@@ -902,6 +902,37 @@ describe("renderHelpOverlay", () => {
     expect(stripped).toContain("Filter mode:");
   });
 
+  it("documents the Z global fold/unfold shortcut", () => {
+    const out = renderHelpOverlay();
+    const stripped = out.replace(/\x1b\[[0-9;]*m/g, "");
+    expect(stripped).toContain("Z");
+    expect(stripped).toContain("fold / unfold all repos");
+  });
+
+  it("documents the o open-in-browser shortcut", () => {
+    const out = renderHelpOverlay();
+    const stripped = out.replace(/\x1b\[[0-9;]*m/g, "");
+    expect(stripped).toContain("open in browser");
+  });
+
+  it("documents gg/G fast navigation shortcuts", () => {
+    const out = renderHelpOverlay();
+    const stripped = out.replace(/\x1b\[[0-9;]*m/g, "");
+    expect(stripped).toContain("gg");
+    expect(stripped).toContain("jump to top");
+    expect(stripped).toContain("G");
+    expect(stripped).toContain("jump to bottom");
+  });
+
+  it("documents Page Up/Down fast navigation shortcuts", () => {
+    const out = renderHelpOverlay();
+    const stripped = out.replace(/\x1b\[[0-9;]*m/g, "");
+    expect(stripped).toContain("PgUp");
+    expect(stripped).toContain("PgDn");
+    expect(stripped).toContain("page up");
+    expect(stripped).toContain("page down");
+  });
+
   it("is returned by renderGroups when showHelp=true", () => {
     const groups = [makeGroup("org/repo", ["a.ts"])];
     const rows = buildRows(groups);
@@ -968,6 +999,17 @@ describe("renderGroups filter opts", () => {
     expect(stripped).not.toContain("Filter:");
   });
 
+  it("status bar hint line includes all navigation hint shortcuts", () => {
+    const groups = [makeGroup("org/repo", ["a.ts"])];
+    const rows = buildRows(groups);
+    const out = renderGroups(groups, 0, rows, 40, 0, "q", "org", {});
+    const stripped = out.replace(/\x1b\[[0-9;]*m/g, "");
+    expect(stripped).toContain("Z fold-all");
+    expect(stripped).toContain("o open");
+    expect(stripped).toContain("gg/G top/bot");
+    expect(stripped).toContain("PgUp/Dn page");
+  });
+
   it("shows mode badge [content] when filterTarget=content", () => {
     const groups = [makeGroup("org/repo", ["a.ts"], false, true)];
     const rows = buildRows(groups, "code", "content");
diff --git a/src/render.ts b/src/render.ts
index 0e96728..cf4b73f 100644
--- a/src/render.ts
+++ b/src/render.ts
@@ -33,9 +33,13 @@ export function renderHelpOverlay(): string {
     bar,
     `  ${pc.yellow("↑")} / ${pc.yellow("k")}       navigate up            ${pc.yellow("↓")} / ${pc.yellow("j")}       navigate down`,
     `  ${pc.yellow("←")}           fold repo              ${pc.yellow("→")}           unfold repo`,
+    `  ${pc.yellow("Z")}           fold / unfold all repos`,
+    `  ${pc.yellow("gg")}          jump to top            ${pc.yellow("G")}           jump to bottom`,
+    `  ${pc.yellow("PgUp")} / ${pc.yellow("Ctrl+U")}  page up               ${pc.yellow("PgDn")} / ${pc.yellow("Ctrl+D")}  page down`,
     `  ${pc.yellow("Space")}       toggle selection       ${pc.yellow("Enter")}       confirm & output`,
     `  ${pc.yellow("a")}           select all             ${pc.yellow("n")}           select none`,
     `                 ${pc.dim("(respects active filter)")}`,
+    `  ${pc.yellow("o")}           open in browser        ${pc.dim("(repo row → repo page, extract row → file)")}`,
     `  ${pc.yellow("f")}           enter filter mode      ${pc.yellow("r")}           reset filter`,
     `  ${pc.yellow("t")}           cycle filter target    ${pc.dim("(path → content → repo)")}`,
     `  ${pc.yellow("h")} / ${pc.yellow("?")}       toggle this help       ${pc.yellow("q")} / Ctrl+C  quit`,
@@ -297,7 +301,7 @@ export function renderGroups(
 
   lines.push(
     pc.dim(
-      "← / → fold/unfold  ↑ / ↓ navigate  spc select  a all  n none  f filter  t target  h help  ↵ confirm  q quit\n",
+      "← / → fold/unfold  Z fold-all  ↑ / ↓ navigate  gg/G top/bot  PgUp/Dn page  spc select  a all  n none  o open  f filter  t target  h help  ↵ confirm  q quit\n",
     ),
   );
 
diff --git a/src/tui.ts b/src/tui.ts
index 8f269a7..b75f78e 100644
--- a/src/tui.ts
+++ b/src/tui.ts
@@ -38,6 +38,10 @@ const KEY_ALT_B = "\x1bb";
 const KEY_ALT_F = "\x1bf";
 const KEY_DELETE = "\x1b[3~";
 const KEY_SHIFT_TAB = "\x1b[Z"; // Shift+Tab — cycle filter target in filter mode
+const KEY_PAGE_UP = "\x1b[5~"; // Page Up — scroll up one page
+const KEY_PAGE_DOWN = "\x1b[6~"; // Page Down — scroll down one page
+const KEY_CTRL_U = "\x15"; // Ctrl+U — page up (Vim-style)
+const KEY_CTRL_D = "\x04"; // Ctrl+D — page down (Vim-style)
 
 // ─── Word-boundary helpers ────────────────────────────────────────────────────
 
@@ -62,6 +66,35 @@ function nextWordBoundary(s: string, pos: number): number {
   return i;
 }
 
+// ─── Browser helper ──────────────────────────────────────────────────────────
+
+/**
+ * Open a URL in the system default browser.
+ * macOS: `open`, Linux: `xdg-open`, Windows: `cmd /c start "" <url>`.
+ * Fire-and-forget with all stdio set to null so the TUI remains fully responsive.
+ */
+function openInBrowser(url: string): void {
+  let command: string;
+  let args: string[];
+
+  if (process.platform === "darwin") {
+    command = "open";
+    args = [url];
+  } else if (process.platform === "win32") {
+    // `start` is a cmd.exe built-in, not a standalone executable.
+    // The empty string is the mandatory window-title argument; without it,
+    // `start` mis-parses the URL as the title and may fail to open it.
+    command = "cmd";
+    args = ["/c", "start", "", url];
+  } else {
+    command = "xdg-open";
+    args = [url];
+  }
+
+  // Fire-and-forget: do not await, and set all stdio to null so the TUI stays responsive.
+  Bun.spawn([command, ...args], { stdout: null, stderr: null, stdin: null });
+}
+
 // ─── Interactive TUI ─────────────────────────────────────────────────────────
 
 export async function runInteractive(
@@ -112,6 +145,8 @@ export async function runInteractive(
   let filterLiveStats: FilterStats | null = null;
   let statsDebounceTimer: ReturnType<typeof setTimeout> | null = null;
   let showHelp = false;
+  // Track first 'g' keypress so that a second consecutive 'g' jumps to the top.
+  let pendingFirstG = false;
 
   /** Schedule a debounced stats recompute (while typing in filter bar). */
   const scheduleStatsUpdate = () => {
@@ -147,6 +182,12 @@ export async function runInteractive(
   for await (const chunk of process.stdin) {
     const key = chunk.toString();
 
+    // Reset the gg pending state on every key that isn't a sequence of one
+    // or more plain "g" characters. This allows terminals that batch key
+    // repeats (e.g. delivering "gg" in a single chunk) to still participate
+    // in the gg shortcut without interfering with any other shortcut.
+    if (!/^g+$/.test(key)) pendingFirstG = false;
+
     // ── Filter input mode ────────────────────────────────────────────────────
     if (filterMode) {
       if (key === KEY_CTRL_C) {
@@ -389,6 +430,89 @@ export async function runInteractive(
       }
     }
 
+    // `Z` — global fold / unfold: fold all if any repo is unfolded, else unfold all
+    if (key === "Z") {
+      const anyUnfolded = groups.some((g) => !g.folded);
+      for (const g of groups) {
+        g.folded = anyUnfolded;
+      }
+      // Adjust scroll so cursor stays aligned with the same repo after bulk fold.
+      // When folding, extract rows disappear: map the current row's repoIndex to
+      // its repo header row so the cursor does not jump to a different repository.
+      if (anyUnfolded) {
+        const newRows = buildRows(groups, filterPath, filterTarget, filterRegex);
+        if (row && (row.type === "repo" || row.type === "extract")) {
+          const headerIdx = newRows.findIndex(
+            (r) => r.type === "repo" && r.repoIndex === row.repoIndex,
+          );
+          cursor = headerIdx !== -1 ? headerIdx : Math.min(cursor, Math.max(0, newRows.length - 1));
+        } else {
+          cursor = Math.min(cursor, Math.max(0, newRows.length - 1));
+        }
+        scrollOffset = Math.min(scrollOffset, cursor);
+      }
+    }
+
+    // `gg` — jump to top (first non-section row).
+    // Handles both two consecutive single-g chunks and a single "gg" chunk
+    // (terminals that batch repeated keypresses into one read() call).
+    if (/^g+$/.test(key)) {
+      if (pendingFirstG || key.length >= 2) {
+        // Second g (or a multi-g chunk) — jump to the first non-section row
+        cursor = 0;
+        while (cursor < rows.length - 1 && rows[cursor]?.type === "section") cursor++;
+        scrollOffset = 0;
+        pendingFirstG = false;
+      } else {
+        pendingFirstG = true;
+      }
+      redraw();
+      continue;
+    }
+
+    // `G` — jump to last row (bottom)
+    if (key === "G") {
+      if (rows.length === 0) {
+        // No rows to jump to; avoid putting cursor into an invalid state
+        pendingFirstG = false;
+        continue;
+      }
+      cursor = rows.length - 1;
+      while (cursor > 0 && rows[cursor]?.type === "section") cursor--;
+      while (
+        scrollOffset < cursor &&
+        !isCursorVisible(rows, groups, cursor, scrollOffset, getViewportHeight())
+      ) {
+        scrollOffset++;
+      }
+    }
+
+    // Page Up / Ctrl+U — scroll up by a full page
+    if (key === KEY_PAGE_UP || key === KEY_CTRL_U) {
+      const pageSize = Math.max(1, getViewportHeight());
+      cursor = Math.max(0, cursor - pageSize);
+      while (cursor > 0 && rows[cursor]?.type === "section") cursor--;
+      // If we've paged up to the top and the first row is a section,
+      // advance to the first non-section row (mirror `gg` behavior).
+      if (cursor === 0 && rows[0]?.type === "section") {
+        while (cursor < rows.length - 1 && rows[cursor]?.type === "section") cursor++;
+      }
+      if (cursor < scrollOffset) scrollOffset = cursor;
+    }
+
+    // Page Down / Ctrl+D — scroll down by a full page
+    if (key === KEY_PAGE_DOWN || key === KEY_CTRL_D) {
+      const pageSize = Math.max(1, getViewportHeight());
+      cursor = Math.min(rows.length - 1, cursor + pageSize);
+      while (cursor < rows.length - 1 && rows[cursor]?.type === "section") cursor++;
+      while (
+        scrollOffset < cursor &&
+        !isCursorVisible(rows, groups, cursor, scrollOffset, getViewportHeight())
+      ) {
+        scrollOffset++;
+      }
+    }
+
     if (key === " " && row && row.type !== "section") {
       if (row.type === "repo") {
         const group = groups[row.repoIndex];
@@ -412,6 +536,19 @@ export async function runInteractive(
       applySelectNone(groups, row, filterPath, filterTarget, filterRegex);
     }
 
+    // `o` — open focused result (or repo) in the default browser
+    if (key === "o" && row && row.type !== "section") {
+      let url: string;
+      if (row.type === "repo") {
+        // Open the repository page on GitHub
+        url = `https://github.com/${groups[row.repoIndex].repoFullName}`;
+      } else {
+        // Open the specific file at the matching line
+        url = groups[row.repoIndex].matches[row.extractIndex!].htmlUrl;
+      }
+      openInBrowser(url);
+    }
+
     redraw();
   }
 }