diff --git a/royalnet/alchemist/__init__.py b/royalnet/alchemist/__init__.py
index 8ce214bb..57a80848 100644
--- a/royalnet/alchemist/__init__.py
+++ b/royalnet/alchemist/__init__.py
@@ -1 +1,2 @@
 from .func import *
+from .repr import *
\ No newline at end of file
diff --git a/royalnet/alchemist/repr.py b/royalnet/alchemist/repr.py
new file mode 100644
index 00000000..f6688ac0
--- /dev/null
+++ b/royalnet/alchemist/repr.py
@@ -0,0 +1,12 @@
+class ColRepr:
+    """A mixin that can be added to a declared class to display all table columns in the __repr__."""
+
+    def __repr__(self):
+        columns = [c.name for c in self.__class__.__table__.columns]
+        args = [f"{c}={repr(self.__getattribute__(c))}" for c in columns]
+        return f"{self.__class__.__qualname__}({', '.join(args)})"
+
+
+__all__ = (
+    "ColRepr",
+)