diff --git a/extra/check_translations.py b/extra/check_translations.py
new file mode 100644
index 000000000..920234d5c
--- /dev/null
+++ b/extra/check_translations.py
@@ -0,0 +1,87 @@
+import json
+import os
+import re
+
+
+def find_missing_translations():
+    # Load the English translation file
+    with open("src/lang/en.json", "r", encoding="utf-8") as f:
+        en_translations = json.load(f)
+
+    # Regex to find i18n keys in Vue files
+    translation_regex = re.compile(
+        # Matches $t('key'), $t("key"), $t('key', [ ... ])
+        r"""\$t\((['"])(?P<key1>.*?)\1\s*[,)]"""
+        + "|"
+        +
+        # Matches i18n-t keypath="key"
+        r"""i18n-t\s+keypath="(?P<key2>[^"]+)" """,
+        re.VERBOSE,
+    )
+
+    missing_keys = []
+
+    # Walk through the src directory
+    for root, _, files in os.walk("src"):
+        for file in files:
+            if file.endswith((".vue", ".js")):
+                file_path = os.path.join(root, file)
+                try:
+                    with open(file_path, "r", encoding="utf-8") as f:
+                        lines = f.readlines()
+                        for line_num, line in enumerate(lines, 1):
+                            for match in translation_regex.finditer(line):
+                                key = (
+                                    match.group("key1")
+                                    or match.group("key2")
+                                    or match.group("key3")
+                                )
+                                if key and key not in en_translations:
+                                    # Find start and end of the key itself
+                                    for group_name in ["key1", "key2", "key3"]:
+                                        if match.group(group_name):
+                                            start, end = match.span(group_name)
+                                            break
+                                    missing_keys.append(
+                                        (
+                                            file_path,
+                                            line_num,
+                                            key,
+                                            line.rstrip(),
+                                            start,
+                                            end,
+                                        )
+                                    )
+
+                except UnicodeDecodeError:
+                    print(f"Skipping file due to UnicodeDecodeError: {file_path}")
+
+    # Print the report
+    if not missing_keys:
+        print("No missing translation keys found.")
+    else:
+        for file_path, line_num, key, line_content, start, end in missing_keys:
+            print(f"\nerror: Missing translation key: '{key}'")
+            print(f"   --> {file_path}:{line_num}:{start}")
+            print("     |")
+            print(f"{line_num:<5}| {line_content}")
+            arrow = " " * (start - 1) + "^" * (end - start + 2)
+            print(f"     | {arrow} unrecognized translation key")
+            print("     |")
+            print(
+                f"     = note: please register the translation key '{key}' in en.json so that our awesome team of translators can translate them"
+            )
+            print(
+                "     = tip: if you want to contribute translations, please visit our https://weblate.kuma.pet"
+            )
+            print("")
+
+        print("===============================")
+        file_count = len(set([item[0] for item in missing_keys]))
+        print(
+            f"Found a total of {len(missing_keys)} missing keys in {file_count} files."
+        )
+
+
+if __name__ == "__main__":
+    find_missing_translations()