diff --git a/misc/txt_to_npz.py b/misc/txt_to_npz.py
new file mode 100755
index 0000000..98cf6b1
--- /dev/null
+++ b/misc/txt_to_npz.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+# file txt_to_npz.py
+# author Florent Guiotte <florent.guiotte@uhb.fr>
+# version 0.0
+# date 24 mai 2019
+"""Convert point clouds from text files to Idefix file format.
+
+doc.
+"""
+
+import numpy as np
+import idefix.io as io
+from pathlib import Path
+import argparse
+from tqdm import tqdm
+
+def txt_to_npy(fname, header, delimiter=None, dtype=None, compression=False):
+    oname = fname.stem + '.npz'
+    pc = io.load_txt(fname, header, delimiter, dtype)
+    io.dump_pc(oname, pc, compression)
+
+def main():
+    parser = argparse.ArgumentParser(description='Convert point clouds from text files to Idefix file format.')
+    parser.add_argument('file', type=str, help='file or dir to convert')
+    parser.add_argument('header', type=str, help='field names of the data')
+    parser.add_argument('--dtype', '-t', type=str, help='field data types')
+    parser.add_argument('--delimiter', '-d', type=str, default=',', help='field data delimiter')
+    parser.add_argument('--compress', '-c', action='store_true', default=False, help='enable data compression')
+
+    args = parser.parse_args()
+    header = args.header.split()
+    dtype = [np.dtype(x) for x in args.dtype.split()] if args.dtype else None
+    delimiter = args.delimiter
+    compress = args.compress
+    wd = Path(args.file)
+
+    if wd.is_dir():
+        files = wd.glob('*.txt')
+    else:
+        files = (wd,)
+
+    pbar = tqdm(list(files))
+    for f in pbar:
+        pbar.write('Processing {}...'.format(f))
+        txt_to_npy(f, header, delimiter, dtype, compress)
+
+if __name__ == '__main__':
+    main()