diff --git a/tools/list_csv_etats.py b/tools/list_csv_etats.py
new file mode 100644
index 0000000..1ae3841
--- /dev/null
+++ b/tools/list_csv_etats.py
@@ -0,0 +1,35 @@
+"""Liste les valeurs distinctes des colonnes Etat et Status dans les CSV iTop.
+
+Usage:
+    python tools/list_csv_etats.py <csv1> [<csv2> ...]
+"""
+import csv
+import sys
+from collections import Counter
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python tools/list_csv_etats.py <csv1> [<csv2> ...]")
+        sys.exit(1)
+
+    for path in sys.argv[1:]:
+        print(f"\n=== {path} ===")
+        with open(path, "r", encoding="utf-8-sig", newline="") as f:
+            sample = f.read(4096); f.seek(0)
+            delim = ";" if sample.count(";") > sample.count(",") else ","
+            reader = csv.DictReader(f, delimiter=delim)
+            rows = list(reader)
+        print(f"{len(rows)} lignes (delim={delim!r})")
+        print(f"Colonnes: {list(rows[0].keys()) if rows else []}")
+
+        for col in ("Etat", "État", "Status", "Environnement"):
+            if rows and col in rows[0]:
+                c = Counter((r.get(col) or "").strip() for r in rows)
+                print(f"\n[{col}]")
+                for v, n in c.most_common():
+                    print(f"  {v!r:30s} {n}")
+
+
+if __name__ == "__main__":
+    main()