diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..ad19955
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,18 @@
+---
+BasedOnStyle: LLVM
+IndentWidth: 4
+ContinuationIndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ColumnLimit: 120
+BreakBeforeBraces: Attach
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
+IndentCaseLabels: true
+SortIncludes: Never
+ReflowComments: false
+PointerAlignment: Left
+ReferenceAlignment: Left
+SpaceBeforeParens: ControlStatements
+...
diff --git a/scripts/format-nvgt.sh b/scripts/format-nvgt.sh
new file mode 100755
index 0000000..4f1c921
--- /dev/null
+++ b/scripts/format-nvgt.sh
@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Show simple usage help.
+print_usage() {
+    echo "Usage: scripts/format-nvgt.sh [path/to/file.nvgt ...]"
+    echo "Formats all tracked .nvgt files when no file paths are provided."
+}
+
+scriptDir=""
+repoRoot=""
+filePath=""
+formattedCount=0
+targetFiles=()
+
+# Help flag is optional and exits early without formatting.
+if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
+    print_usage
+    exit 0
+fi
+
+# Stop immediately if clang-format is not installed.
+if ! command -v clang-format >/dev/null 2>&1; then
+    echo "clang-format is required but was not found in PATH." >&2
+    exit 1
+fi
+
+# Resolve script location, then run from repo root so relative paths work.
+scriptDir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+repoRoot="$(cd "${scriptDir}/.." && pwd)"
+cd "${repoRoot}"
+
+# We require the project style file to keep formatting consistent.
+if [[ ! -f ".clang-format" ]]; then
+    echo "Missing .clang-format in repo root: ${repoRoot}" >&2
+    exit 1
+fi
+
+# No args: format every tracked .nvgt file in git.
+if [[ "$#" -eq 0 ]]; then
+    mapfile -t targetFiles < <(git ls-files "*.nvgt")
+else
+    # Args provided: validate each file and format only those paths.
+    for filePath in "$@"; do
+        if [[ ! -f "${filePath}" ]]; then
+            echo "File not found: ${filePath}" >&2
+            exit 1
+        fi
+        if [[ "${filePath}" != *.nvgt ]]; then
+            echo "Only .nvgt files are supported: ${filePath}" >&2
+            exit 1
+        fi
+        targetFiles+=("${filePath}")
+    done
+fi
+
+if [[ "${#targetFiles[@]}" -eq 0 ]]; then
+    echo "No .nvgt files found to format."
+    exit 0
+fi
+
+# Force C++ parsing rules for NVGT while still using repo .clang-format.
+for filePath in "${targetFiles[@]}"; do
+    clang-format -i --style=file --assume-filename=file.cpp "${filePath}"
+    formattedCount=$((formattedCount + 1))
+done
+
+echo -n "Formatted ${formattedCount} "
+if [[ ${formattedCount} -ne 1 ]]; then
+    echo "files."
+else
+    echo "file."
+fi
+
+exit 0