diff --git a/copyparty/__main__.py b/copyparty/__main__.py
index 6d70b248..cb5396e1 100755
--- a/copyparty/__main__.py
+++ b/copyparty/__main__.py
@@ -594,6 +594,7 @@ def run_argparse(argv: list[str], formatter: Any, retry: bool) -> argparse.Names
     ap2.add_argument("--sparse", metavar="MiB", type=int, default=4, help="windows-only: minimum size of incoming uploads through up2k before they are made into sparse files")
     ap2.add_argument("--turbo", metavar="LVL", type=int, default=0, help="configure turbo-mode in up2k client; 0 = off and warn if enabled, 1 = off, 2 = on, 3 = on and disable datecheck")
     ap2.add_argument("--u2sort", metavar="TXT", type=u, default="s", help="upload order; s=smallest-first, n=alphabetical, fs=force-s, fn=force-n -- alphabetical is a bit slower on fiber/LAN but makes it easier to eyeball if everything went fine")
+    ap2.add_argument("--write-uplog", action="store_true", help="write POST reports to textfiles in working-directory")
 
     ap2 = ap.add_argument_group('network options')
     ap2.add_argument("-i", metavar="IP", type=u, default="0.0.0.0", help="ip to bind (comma-sep.)")
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index b70a2d94..d9014576 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -1421,12 +1421,16 @@ class HttpCli(object):
         vspd = self._spd(sz_total, False)
         self.log("{} {}".format(vspd, msg))
 
-        if not nullwrite:
-            log_fn = "up.{:.6f}.txt".format(t0)
-            with open(log_fn, "wb") as f:
-                ft = "{}:{}".format(self.ip, self.addr[1])
-                ft = "{}\n{}\n{}\n".format(ft, msg.rstrip(), errmsg)
-                f.write(ft.encode("utf-8"))
+        suf = ""
+        if not nullwrite and self.args.write_uplog:
+            try:
+                log_fn = "up.{:.6f}.txt".format(t0)
+                with open(log_fn, "wb") as f:
+                    ft = "{}:{}".format(self.ip, self.addr[1])
+                    ft = "{}\n{}\n{}\n".format(ft, msg.rstrip(), errmsg)
+                    f.write(ft.encode("utf-8"))
+            except Exception as ex:
+                suf = "\nfailed to write the upload report: {}".format(ex)
 
         sc = 400 if errmsg else 200
         if "j" in self.uparam:
@@ -1435,7 +1439,7 @@ class HttpCli(object):
         else:
             self.redirect(
                 self.vpath,
-                msg=msg,
+                msg=msg + suf,
                 flavor="return to",
                 click=False,
                 status=sc,