diff --git a/build.sh b/build.sh
index d5ac642e..84c7e1c5 100755
--- a/build.sh
+++ b/build.sh
@@ -13,6 +13,8 @@ usage() {
   echo "                   wheel      - Build the Python wheel."
   echo "                   ctest      - Run tests (requires tests to be built)."
   echo "                   docstest   - Run pytest markdown documentation tests."
+  echo "                   black      - Run black over Python (matches CI)."
+  echo "                   clang-format - Run clang-format over src/ (matches CI)."
   echo ""
   echo "Options:"
   echo "  -h, --help     Display this help message and exit."
@@ -220,7 +222,7 @@ _first_arg_val="$1"
 BUILD_TYPE="install" # Default build type
 
 if [[ -n "$_first_arg_val" ]]; then
-  if [[ "$_first_arg_val" == "install" || "$_first_arg_val" == "wheel" || "$_first_arg_val" == "ctest" || "$_first_arg_val" == "docstest" ]]; then
+  if [[ "$_first_arg_val" == "install" || "$_first_arg_val" == "wheel" || "$_first_arg_val" == "ctest" || "$_first_arg_val" == "docstest" || "$_first_arg_val" == "black" || "$_first_arg_val" == "clang-format" ]]; then
     BUILD_TYPE="$_first_arg_val"
     shift # Consume the build_type argument
   else
@@ -348,7 +350,15 @@ if [ "$BUILD_TYPE" != "ctest" ] && [ "$BUILD_TYPE" != "docstest" ]; then
 fi
 
 # if the user specified 'wheel' as the build type, then we will build the wheel
-if [ "$BUILD_TYPE" == "wheel" ]; then
+if [ "$BUILD_TYPE" == "black" ]; then
+    echo "Running black (matches CI)"
+    ./src/scripts/run_black.sh
+
+elif [ "$BUILD_TYPE" == "clang-format" ]; then
+    echo "Running clang-format (matches CI clangFormatVersion=18, style=file)"
+    ./src/scripts/run_clang_format.sh
+
+elif [ "$BUILD_TYPE" == "wheel" ]; then
     echo "Build wheel"
     echo "pip wheel . --no-deps --wheel-dir dist/ $PIP_ARGS"
     run_with_sanitized_paths pip wheel . --no-deps --wheel-dir dist/ $PIP_ARGS
@@ -438,6 +448,6 @@ elif [ "$BUILD_TYPE" == "docstest" ]; then
 
 else
     echo "Invalid build/run type: $BUILD_TYPE"
-    echo "Valid build/run types are: wheel, install, ctest, docstest"
+    echo "Valid build/run types are: wheel, install, ctest, docstest, black, clang-format"
     exit 1
 fi
diff --git a/src/scripts/run_black.sh b/src/scripts/run_black.sh
new file mode 100755
index 00000000..8139e8bb
--- /dev/null
+++ b/src/scripts/run_black.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# Copyright Contributors to the OpenVDB Project
+# SPDX-License-Identifier: Apache-2.0
+
+set -euo pipefail
+
+# CI uses psf/black@stable with:
+#   --check --diff --verbose --target-version=py311 --line-length=120 --extend-exclude='wip/'
+#   src: "./"
+#   version: "~= 24.0"
+# See: .github/workflows/codestyle.yml
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
+
+MODE="${1:-format}" # "format" (default) or "check"
+
+if ! python -c "import black" >/dev/null 2>&1; then
+    echo "Error: black is not installed in this Python environment."
+    echo "Install with:"
+    echo "  python -m pip install -U \"black~=24.0\""
+    exit 127
+fi
+
+COMMON_ARGS=(
+    --target-version=py311
+    --line-length=120
+    --extend-exclude=wip/
+)
+
+pushd "${REPO_ROOT}" >/dev/null
+if [[ "${MODE}" == "check" ]]; then
+    python -m black --check --diff --verbose "${COMMON_ARGS[@]}" ./
+elif [[ "${MODE}" == "format" ]]; then
+    python -m black "${COMMON_ARGS[@]}" ./
+else
+    echo "Error: unknown mode '${MODE}'. Expected 'format' or 'check'."
+    exit 2
+fi
+popd >/dev/null
+
diff --git a/src/scripts/run_clang_format.sh b/src/scripts/run_clang_format.sh
index 22e71646..bd6a17ad 100755
--- a/src/scripts/run_clang_format.sh
+++ b/src/scripts/run_clang_format.sh
@@ -1,30 +1,52 @@
+#!/bin/bash
 # Copyright Contributors to the OpenVDB Project
 # SPDX-License-Identifier: Apache-2.0
 
-#!/bin/bash
-
-format_files() {
-    find . -type f \( -name "*.cpp" -o -name "*.h" -o -name "*.hpp" -o -name "*.cu" -o -name "*.cuh" \) -exec clang-format -i {} +
+set -euo pipefail
+
+# CI uses clang-format v18 with style=file on src/ for:
+#   h,cpp,cc,cu,cuh
+# See: .github/workflows/codestyle.yml
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SRC_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+CLANG_FORMAT_BIN="${CLANG_FORMAT_BIN:-}"
+if [[ -z "${CLANG_FORMAT_BIN}" ]]; then
+    if command -v clang-format-18 >/dev/null 2>&1; then
+        CLANG_FORMAT_BIN="clang-format-18"
+    elif command -v clang-format >/dev/null 2>&1; then
+        CLANG_FORMAT_BIN="clang-format"
+    else
+        echo "Error: clang-format not found in PATH."
+        echo ""
+        echo "CI uses clang-format v18. To match CI locally, either:"
+        echo "  - run inside your conda env: conda run -n fvdb ./build.sh clang-format"
+        echo "  - or install clang-format-18 and re-run."
+        exit 127
+    fi
+else
+    if ! command -v "${CLANG_FORMAT_BIN}" >/dev/null 2>&1; then
+        echo "Error: CLANG_FORMAT_BIN='${CLANG_FORMAT_BIN}' not found in PATH."
+        exit 127
+    fi
+fi
+
+echo "Using ${CLANG_FORMAT_BIN} ($(${CLANG_FORMAT_BIN} --version | head -n 1))"
+
+format_files_in_dir() {
+    local target_dir="$1"
+    pushd "${target_dir}" >/dev/null
+    # Use print0/xargs -0 to safely handle spaces.
+    find . -type f \( -name "*.cpp" -o -name "*.cc" -o -name "*.h" -o -name "*.hpp" -o -name "*.cu" -o -name "*.cuh" \) -print0 \
+        | xargs -0 "${CLANG_FORMAT_BIN}" -i -style=file
+    popd >/dev/null
 }
 
-pushd ../benchmarks
-format_files
-popd
-
-pushd ../dispatch
-format_files
-popd
-
-pushd ../fvdb
-format_files
-popd
-
-pushd ../python
-format_files
-popd
-
-pushd ../tests
-format_files
-popd
+format_files_in_dir "${SRC_DIR}/benchmarks"
+format_files_in_dir "${SRC_DIR}/dispatch"
+format_files_in_dir "${SRC_DIR}/fvdb"
+format_files_in_dir "${SRC_DIR}/python"
+format_files_in_dir "${SRC_DIR}/tests"