diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
index 9a6acff..1991e34 100644
--- a/docs/troubleshooting.md
+++ b/docs/troubleshooting.md
@@ -18,3 +18,9 @@ If problems persist, consult the OnionShare and Tor documentation for more advan
 
 ## Electron GUI
 If `npm start` fails with `spawn voxvera ENOENT`, the `voxvera` command is not in your `PATH`. Install it with `pipx install voxvera` or run `./install.sh` from the repository.
+
+## Missing dependencies
+Run `voxvera check` to see which required tools are present. The command verifies
+`node`, `javascript-obfuscator`, `html-minifier-terser`, `jq`, `qrencode`,
+`onionshare-cli`, and other helpers, then prints a summary of any that are
+missing so you can install them.
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 727f4b7..4cddbd4 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -64,3 +64,20 @@ def test_import(tmp_path, monkeypatch):
         assert dest.is_dir()
         assert (dest / "index.html").exists()
 
+
+def test_check_all_present(capsys, monkeypatch):
+    monkeypatch.setattr(shutil, "which", lambda cmd: "/usr/bin/" + cmd)
+    cli.main(["check"])
+    captured = capsys.readouterr()
+    assert "All required tools are installed." in captured.out
+
+
+def test_check_missing(capsys, monkeypatch):
+    def fake_which(cmd):
+        return None if cmd == "node" else "/usr/bin/" + cmd
+
+    monkeypatch.setattr(shutil, "which", fake_which)
+    cli.main(["check"])
+    captured = capsys.readouterr()
+    assert "node: missing" in captured.out
+
diff --git a/voxvera/cli.py b/voxvera/cli.py
index 05805e3..8b35d9a 100644
--- a/voxvera/cli.py
+++ b/voxvera/cli.py
@@ -31,6 +31,39 @@ def require_cmd(cmd: str):
     return True
 
 
+def check_deps():
+    console = Console()
+    tools = [
+        "node",
+        "javascript-obfuscator",
+        "html-minifier-terser",
+        "jq",
+        "qrencode",
+        "onionshare-cli",
+        "convert",
+        "pdftotext",
+    ]
+
+    found = []
+    missing = []
+    for t in tools:
+        if shutil.which(t):
+            found.append(t)
+        else:
+            missing.append(t)
+
+    console.rule("Dependency Check")
+    for t in tools:
+        status = "found" if t in found else "missing"
+        color = "green" if t in found else "red"
+        console.print(f"{t}: [{color}]{status}[/{color}]")
+
+    if missing:
+        console.print(f"[red]Missing tools:[/red] {', '.join(missing)}")
+    else:
+        console.print("[green]All required tools are installed.[/green]")
+
+
 def run(cmd, **kwargs):
     try:
         subprocess.run(cmd, check=True, **kwargs)
@@ -327,6 +360,7 @@ def main(argv=None):
     sub.add_parser('import', help='Batch import JSON files from imports/')
     sub.add_parser('serve', help='Serve flyer over OnionShare using config')
     sub.add_parser('quickstart', help='Init, build and serve in sequence')
+    sub.add_parser('check', help='Check for required external dependencies')
 
     args = parser.parse_args(argv)
     config_path = Path(args.config).resolve()
@@ -351,6 +385,8 @@ def main(argv=None):
         interactive_update(config_path)
         build_assets(config_path)
         serve(config_path)
+    elif args.command == 'check':
+        check_deps()
     else:
         parser.print_help()