diff --git a/FUZZING.MD b/FUZZING.MD
new file mode 100644
index 000000000..2ee39f0be
--- /dev/null
+++ b/FUZZING.MD
@@ -0,0 +1,33 @@
+### Export Flags
+
+```
+export CC=clang
+export CXX=clang++
+export LIB_FUZZING_ENGINE=-fsanitize=fuzzer
+export CFLAGS="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=address -fsanitize-address-use-after-scope -fsanitize=fuzzer-no-link"
+export CXXFLAGS="$CFLAGS"
+export LDFLAGS="$CFLAGS"
+```
+
+### Compile Guide
+
+Note: While compiling fuzzing suite, Don't use bloat libraries.
+
+```
+./configure --disable-ffmpeg --disable-ssl --disable-speex-aec --disable-speex-codec --disable-g7221-codec --disable-gsm-codec --disable-ilbc-codec --disable-resample --disable-libsrtp --disable-libwebrtc --disable-libyuv
+
+make dep
+make -j$(nproc)
+make fuzz
+```
+
+
+### Run
+
+```
+cd tests/fuzz
+mkdir cov-json
+unzip seed/fuzz-json_seed_corpus.zip
+./fuzz-json cov-json/ fuzz-json_seed_corpus/
+```
+
diff --git a/Makefile b/Makefile
index 2b1f2f655..636b0c2b5 100644
--- a/Makefile
+++ b/Makefile
@@ -124,6 +124,9 @@ pjsua-test: cmp_wav
 cmp_wav:
 	cd tests/pjsua/tools && make
 
+fuzz:
+	cd tests/fuzz && make
+
 install:
 	mkdir -p $(DESTDIR)$(libdir)/
 	if [ "$(PJ_EXCLUDE_PJSUA2)x" = "x" ] ; then \
diff --git a/tests/fuzz/Makefile b/tests/fuzz/Makefile
new file mode 100644
index 000000000..31abeb978
--- /dev/null
+++ b/tests/fuzz/Makefile
@@ -0,0 +1,32 @@
+#Modify this to point to the PJSIP location.
+PJBASE=../../
+
+include $(PJBASE)/build.mak
+
+TARGET=Fuzzing
+
+JSON=fuzz-json
+XML=fuzz-xml
+SDP=fuzz-sdp
+STUN=fuzz-stun
+SIP=fuzz-sip
+
+EXTFLAGS=-Wall -Werror
+
+all: $(TARGET)
+
+$(TARGET):
+	$(CC) $(PJ_CFLAGS) $(EXTFLAGS) -c $(JSON).c
+	$(CC) $(PJ_CFLAGS) $(EXTFLAGS) -c $(XML).c
+	$(CC) $(PJ_CFLAGS) $(EXTFLAGS) -c $(SDP).c
+	$(CC) $(PJ_CFLAGS) $(EXTFLAGS) -c $(STUN).c
+	$(CC) $(PJ_CFLAGS) $(EXTFLAGS) -c $(SIP).c
+
+	$(CXX) $(PJ_CFLAGS) -o $(JSON) $(JSON).o $(PJ_LDFLAGS) $(PJ_LDLIBS) $(LDFLAGS) $(LIB_FUZZING_ENGINE)
+	$(CXX) $(PJ_CFLAGS) -o $(XML)  $(XML).o  $(PJ_LDFLAGS) $(PJ_LDLIBS) $(LDFLAGS) $(LIB_FUZZING_ENGINE)
+	$(CXX) $(PJ_CFLAGS) -o $(SDP)  $(SDP).o  $(PJ_LDFLAGS) $(PJ_LDLIBS) $(LDFLAGS) $(LIB_FUZZING_ENGINE)
+	$(CXX) $(PJ_CFLAGS) -o $(STUN) $(STUN).o $(PJ_LDFLAGS) $(PJ_LDLIBS) $(LDFLAGS) $(LIB_FUZZING_ENGINE)
+	$(CXX) $(PJ_CFLAGS) -o $(SIP)  $(SIP).o  $(PJ_LDFLAGS) $(PJ_LDLIBS) $(LDFLAGS) $(LIB_FUZZING_ENGINE)
+
+clean:
+	rm $(JSON) $(XML) $(SDP) $(STUN) $(SIP) *.o
diff --git a/tests/fuzz/fuzz-json.c b/tests/fuzz/fuzz-json.c
new file mode 100644
index 000000000..c2449db27
--- /dev/null
+++ b/tests/fuzz/fuzz-json.c
@@ -0,0 +1,87 @@
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <pjlib.h>
+#include <pjlib-util.h>
+
+#include <pjlib-util/json.h>
+#include <pj/log.h>
+#include <pj/string.h>
+
+#define kMinInputLength 10
+#define kMaxInputLength 5120
+
+pj_pool_factory *mem;
+
+int Json_parse(char *DataFx,size_t Size){
+    
+    int ret = 0;
+    pj_pool_t *pool;
+    pj_json_elem *elem;
+    pj_json_err_info err;
+
+    pool = pj_pool_create(mem, "json", 1000, 1000, NULL);
+
+    elem = pj_json_parse(pool, DataFx,(unsigned *)&Size, &err);
+
+    if (!elem)
+        ret = 1;
+
+    pj_pool_release(pool);
+
+    return ret;
+}
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{/*pjproject/pjlib-util/src/pjlib-util-test/json_test.c*/
+
+    if (Size < kMinInputLength || Size > kMaxInputLength){
+        return 1;
+    }
+
+/*Add Extra byte */
+    char *DataFx;
+    DataFx = (char *)calloc((Size+1),sizeof(char));
+    memcpy((void *)DataFx,(void *)Data,Size);
+
+/*init*/
+    int ret = 0;
+    pj_caching_pool caching_pool;
+    mem = &caching_pool.factory;
+
+    pj_log_set_level(0);
+
+    ret = pj_init();
+    ret = pjlib_util_init();
+
+    pj_dump_config();
+    pj_caching_pool_init( &caching_pool, &pj_pool_factory_default_policy, 0);
+
+/*Calls*/
+    ret = Json_parse(DataFx,Size);
+
+    free(DataFx);
+
+    return ret;
+}
diff --git a/tests/fuzz/fuzz-sdp.c b/tests/fuzz/fuzz-sdp.c
new file mode 100644
index 000000000..31749e797
--- /dev/null
+++ b/tests/fuzz/fuzz-sdp.c
@@ -0,0 +1,96 @@
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <pjmedia.h>
+#include <pjlib.h>
+
+#include <pjmedia/sdp.h>
+#include <pjmedia/sdp_neg.h>
+
+#define kMinInputLength 10
+#define kMaxInputLength 5120
+
+pj_pool_factory *mem;
+
+int sdp_parser(char *DataFx,size_t Size){
+
+    int ret = 0;
+	pj_pool_t *pool;
+    pjmedia_sdp_session *sdp;
+    pj_status_t status;
+
+    pool = pj_pool_create(mem, "sdp_neg_test", 4000, 4000, NULL);
+
+    status = pjmedia_sdp_parse(pool, DataFx, Size,&sdp);
+
+    if (status != PJ_SUCCESS){
+        ret = 1;
+        goto end;
+    }
+
+    status = pjmedia_sdp_validate(sdp);
+
+end:
+    pj_pool_release(pool);
+
+    return ret;
+}
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{/*pjproject/pjmedia/src/test/sdp_neg_test.c*/
+
+    if (Size < kMinInputLength || Size > kMaxInputLength){
+        return 1;
+    }
+
+/*Add Extra byte */
+    char *DataFx;
+    DataFx = (char *)calloc((Size+1),sizeof(char));
+    memcpy((void *)DataFx,(void *)Data,Size);
+
+/*init*/
+    int ret = 0;
+    pj_caching_pool caching_pool;
+    pj_pool_t *pool;
+
+    pj_init();
+    pj_caching_pool_init(&caching_pool, &pj_pool_factory_default_policy, 0);
+    pool = pj_pool_create(&caching_pool.factory, "test", 1000, 512, NULL);
+
+    pj_log_set_level(0);
+
+    mem = &caching_pool.factory;
+
+    pjmedia_event_mgr_create(pool, 0, NULL);
+
+/*Call*/
+    ret = sdp_parser(DataFx,Size);
+
+/*Free*/
+    pjmedia_event_mgr_destroy(pjmedia_event_mgr_instance());
+    pj_pool_release(pool);
+    pj_caching_pool_destroy(&caching_pool);
+
+    free(DataFx);
+    return ret;
+}
diff --git a/tests/fuzz/fuzz-sip.c b/tests/fuzz/fuzz-sip.c
new file mode 100644
index 000000000..30c868c23
--- /dev/null
+++ b/tests/fuzz/fuzz-sip.c
@@ -0,0 +1,107 @@
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <pjlib.h>
+#include <pjlib-util.h>
+#include <pjsip.h>
+#include <pjsip/sip_types.h>
+
+#include <pjsip.h>
+#include <pjlib.h>
+
+
+pjsip_endpoint *endpt;
+pj_caching_pool caching_pool;
+
+#define POOL_SIZE	8000
+#define PJSIP_TEST_MEM_SIZE	    (2*1024*1024)
+
+#define kMinInputLength 10
+#define kMaxInputLength 5120
+
+int sipParser(char *DataFx,size_t Size){
+
+    int ret = 0;
+    pj_pool_t *pool;
+    pjsip_msg *parsed_msg = NULL;
+    pjsip_parser_err_report err_list;
+
+    pool = pjsip_endpt_create_pool(endpt, NULL, POOL_SIZE, POOL_SIZE);
+
+
+    pj_list_init(&err_list);
+
+    parsed_msg = pjsip_parse_msg(pool, DataFx, Size, &err_list);
+    
+    if (parsed_msg == NULL)
+        ret = 1;
+
+    pjsip_endpt_release_pool(endpt, pool);
+
+    return ret;
+}
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{/*/home/Ez/project/pjproject/pjsip/src/test/msg_test.c*/
+
+    if (Size < kMinInputLength || Size > kMaxInputLength){
+        return 1;
+    }
+
+/*Add Extra byte */
+    char *DataFx;
+    DataFx = (char *)calloc((Size+1),sizeof(char));
+    memcpy((void *)DataFx,(void *)Data,Size);
+
+
+/*init*/
+    pj_status_t rc;
+    //pj_status_t status;
+
+    pj_log_set_level(0);
+
+    rc=pj_init();
+    rc=pjlib_util_init();
+
+    pj_dump_config();
+
+    pj_caching_pool_init( &caching_pool, &pj_pool_factory_default_policy, 
+			  PJSIP_TEST_MEM_SIZE );
+
+    rc = pjsip_endpt_create(&caching_pool.factory, "endpt", &endpt);
+
+    /* Start transaction layer module. */
+    rc = pjsip_tsx_layer_init_module(endpt);
+
+    rc = pjsip_loop_start(endpt, NULL);
+
+/*Calls*/
+    rc = sipParser(DataFx,Size);
+
+    pjsip_endpt_destroy(endpt);
+    pj_caching_pool_destroy(&caching_pool);
+
+    free(DataFx);
+
+    return rc;
+}
diff --git a/tests/fuzz/fuzz-stun.c b/tests/fuzz/fuzz-stun.c
new file mode 100644
index 000000000..fecd372c9
--- /dev/null
+++ b/tests/fuzz/fuzz-stun.c
@@ -0,0 +1,89 @@
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <pjlib.h>
+#include <pj/compat/socket.h>
+
+#include <pjlib.h>
+#include <pjlib-util.h>
+#include <pjnath.h>
+
+#define kMinInputLength 10
+#define kMaxInputLength 5120
+
+pj_pool_factory *mem;
+
+int stun_parse(char *DataFx,size_t Size){
+    int ret = 0;
+    pj_pool_t *pool;
+    pj_stun_msg *msg;
+    pj_status_t status;
+
+    pool = pj_pool_create(mem, "decode_test", 1024, 1024, NULL);
+
+    status = pj_stun_msg_decode(pool, (pj_uint8_t*)DataFx,Size,
+                            PJ_STUN_IS_DATAGRAM | PJ_STUN_CHECK_PACKET, 
+                        &msg, NULL, NULL);
+
+    if(status)
+        ret = 1;
+
+    pj_pool_release(pool);
+
+    return ret;
+}
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{/*pjproject/pjnath/src/pjnath-test/stun.c*/
+
+    if (Size < kMinInputLength || Size > kMaxInputLength){
+        return 1;
+    }
+
+/*Add Extra byte */
+    char *DataFx;
+    DataFx = (char *)calloc((Size+1),sizeof(char));
+    memcpy((void *)DataFx,(void *)Data,Size);
+
+/*init*/
+    int ret = 0;
+    pj_caching_pool caching_pool;
+
+    mem = &caching_pool.factory;
+
+    pj_log_set_level(0);
+
+    pj_init();
+
+    pj_dump_config();
+    pj_caching_pool_init( &caching_pool, &pj_pool_factory_default_policy, 0 );
+
+    pjlib_util_init();
+    pjnath_init();
+
+/*call*/
+    ret = stun_parse(DataFx,Size); 
+
+    free(DataFx);
+    return ret;
+}
diff --git a/tests/fuzz/fuzz-xml.c b/tests/fuzz/fuzz-xml.c
new file mode 100644
index 000000000..815060ea2
--- /dev/null
+++ b/tests/fuzz/fuzz-xml.c
@@ -0,0 +1,84 @@
+/* 
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <pjlib.h>
+#include <pjlib-util.h>
+
+#include <pjlib-util/xml.h>
+
+#define kMinInputLength 10
+#define kMaxInputLength 5120
+
+pj_pool_factory *mem;
+
+int XML_parse(char *DataFx,size_t Size){
+
+    int ret = 0;
+    pj_pool_t *pool;
+    pj_xml_node *root;
+
+    pool = pj_pool_create(mem, "xml", 4096, 1024, NULL);
+
+    root = pj_xml_parse(pool, DataFx, Size);
+
+    if (!root)
+        ret += 1;
+
+    pj_pool_release(pool);
+
+    return ret;
+}
+
+extern int
+LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{/*pjproject/pjlib-util/src/pjlib-util-test/xml.c*/
+
+    if (Size < kMinInputLength || Size > kMaxInputLength){
+        return 1;
+    }
+
+/*Add Extra byte */
+    char *DataFx;
+    DataFx = (char *)calloc((Size+1),sizeof(char));
+    memcpy((void *)DataFx,(void *)Data,Size);
+
+/*init*/
+    int ret = 0;
+    pj_caching_pool caching_pool;
+    mem = &caching_pool.factory;
+
+    pj_log_set_level(0);
+
+    ret = pj_init();
+    ret = pjlib_util_init();
+
+    pj_dump_config();
+    pj_caching_pool_init( &caching_pool, &pj_pool_factory_default_policy, 0 );
+
+/*Call*/
+    ret = XML_parse(DataFx,Size);
+
+    free(DataFx);
+
+    return ret;
+}
diff --git a/tests/fuzz/seed/fuzz-json_seed_corpus.zip b/tests/fuzz/seed/fuzz-json_seed_corpus.zip
new file mode 100644
index 000000000..3b372c454
Binary files /dev/null and b/tests/fuzz/seed/fuzz-json_seed_corpus.zip differ
diff --git a/tests/fuzz/seed/fuzz-sdp_seed_corpus.zip b/tests/fuzz/seed/fuzz-sdp_seed_corpus.zip
new file mode 100644
index 000000000..88361b4eb
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diff --git a/tests/fuzz/seed/fuzz-sip_seed_corpus.zip b/tests/fuzz/seed/fuzz-sip_seed_corpus.zip
new file mode 100644
index 000000000..a9ed40b7d
Binary files /dev/null and b/tests/fuzz/seed/fuzz-sip_seed_corpus.zip differ
diff --git a/tests/fuzz/seed/fuzz-stun_seed_corpus.zip b/tests/fuzz/seed/fuzz-stun_seed_corpus.zip
new file mode 100644
index 000000000..4d1545c67
Binary files /dev/null and b/tests/fuzz/seed/fuzz-stun_seed_corpus.zip differ
diff --git a/tests/fuzz/seed/fuzz-xml_seed_corpus.zip b/tests/fuzz/seed/fuzz-xml_seed_corpus.zip
new file mode 100644
index 000000000..92d1bd064
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