diff --git a/brainglobe_utils/brainmapper/export.py b/brainglobe_utils/brainmapper/export.py
new file mode 100644
index 0000000..4a14fff
--- /dev/null
+++ b/brainglobe_utils/brainmapper/export.py
@@ -0,0 +1,31 @@
+import numpy as np
+from typing import Union
+from pathlib import Path
+
+def export_points_to_brainrender(
+    points: np.ndarray,
+    resolution: float,
+    output_filename: Union[str, Path],
+) -> None:
+    """
+    Export points in atlas space for visualization in brainrender.
+
+    Points are scaled from atlas coordinates to real units and saved
+    as a numpy file.
+
+    Parameters
+    ----------
+    points : np.ndarray
+        A numpy array containing the points in atlas space.
+    resolution : float
+        A numerical value representing the resolution scale to be
+        applied to the points.
+    output_filename : Union[str, Path]
+        The path where the numpy file will be saved. Can be a string
+        or a Path object.
+
+    Returns
+    -------
+    None
+    """
+    np.save(output_filename, points * resolution)
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