diff --git a/spotiflow/utils/test_3d.py b/spotiflow/utils/test_3d.py
deleted file mode 100644
index a9621b4..0000000
--- a/spotiflow/utils/test_3d.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from spotiflow.utils.peaks import points_to_prob, points_to_flow, flow_to_vector, prob_to_points
-import numpy as np
-import tifffile
-
-
-if __name__ == "__main__":
-    shape = (32,32,32)
-    print("orig pt:")
-    pt = (0,14.2,28.34124)
-
-    points = np.array([pt])
-    print("flow...")
-    flow = points_to_flow(points, shape, sigma=1.5)
-    flow_reversed = flow_to_vector(flow, sigma=1.5)
-    print("flow ok!")
-
-    print("heatmap...")
-    heatmap = points_to_prob(points, shape, sigma=1.5, mode="max")
-    print("heatmap ok!")
-    
-    print("nms")
-    pts_rec = prob_to_points(heatmap, mode="fast", exclude_border=False)
-    print("nms ok!")
-
-    print(pts_rec)
\ No newline at end of file