diff --git a/tests/fuzz/runner.cpp b/tests/fuzz/runner.cpp
new file mode 100644
index 0000000000..240ed72dd7
--- /dev/null
+++ b/tests/fuzz/runner.cpp
@@ -0,0 +1,65 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/fuzz/runner.cpp
+// Purpose:     Main function for running fuzzers with a single input file
+// Author:      Vadim Zeitlin
+// Created:     2017-10-28
+// Copyright:   (c) 2017 Vadim Zeitlin <vadim@wxwidgets.org>
+///////////////////////////////////////////////////////////////////////////////
+
+// Normally fuzzers are run by libFuzzer, which executes the entry function
+// LLVMFuzzerTestOneInput() with many different inputs, but it can be useful to
+// run them with just a single input to check a particular problem found during
+// fuzzing. To do this, link the fuzzer code with this file and run it with the
+// file name containing the test data. E.g. an example use:
+//
+//  $ g++ -g -fsanitize=undefined -c tests/fuzz/{zip,runner}.cpp \
+//      `wx-config --cxxflags --libs base`
+//  $ ./a.out testcase-found-by-libfuzzer
+
+#include "wx/buffer.h"
+#include "wx/crt.h"
+#include "wx/ffile.h"
+#include "wx/init.h"
+
+// The fuzzer entry function.
+extern "C" int LLVMFuzzerTestOneInput(const wxUint8 *data, size_t size);
+
+int main(int argc, char** argv)
+{
+    wxInitializer init(argc, argv);
+    if ( !init.IsOk() )
+    {
+        wxPrintf("Initializing wxWidgets failed.\n");
+        return 1;
+    }
+
+    if ( argc != 2 )
+    {
+        wxPrintf("Usage: %s <input-file>\n", argv[0]);
+        return 2;
+    }
+
+    wxFFile file(argv[1], "rb");
+    if ( !file.IsOpened() )
+    {
+        wxPrintf("Failed to open the input file \"%s\".\n", argv[1]);
+        return 3;
+    }
+
+    const wxFileOffset ofs = file.Length();
+    if ( ofs < 0 )
+    {
+        wxPrintf("Failed to get the input file \"%s\" size.\n", argv[1]);
+        return 3;
+    }
+
+    const size_t len = ofs;
+    wxMemoryBuffer buf(len);
+    if ( file.Read(buf.GetData(), len) != len )
+    {
+        wxPrintf("Failed to read from the input file \"%s\".\n", argv[1]);
+        return 3;
+    }
+
+    return LLVMFuzzerTestOneInput(static_cast<wxUint8*>(buf.GetData()), len);
+}