diff --git a/tools/ice-transport-loopback.c b/tools/ice-transport-loopback.c
new file mode 100644
index 0000000..008c9a0
--- /dev/null
+++ b/tools/ice-transport-loopback.c
@@ -0,0 +1,152 @@
+#include "helper/handler.h"
+#include "helper/utils.h"
+#include <rawrtc.h>
+#include <rawrtcc.h>
+#include <rawrtcdc.h>
+#include <re.h>
+#include <stdlib.h>  // exit
+#include <unistd.h>  // STDIN_FILENO
+
+#define DEBUG_MODULE "ice-transport-loopback-app"
+#define DEBUG_LEVEL 7
+#include <re_dbg.h>
+
+// Note: Shadows struct client
+struct ice_transport_client {
+    char* name;
+    char** ice_candidate_types;
+    size_t n_ice_candidate_types;
+    struct rawrtc_ice_gather_options* gather_options;
+    struct rawrtc_ice_parameters* ice_parameters;
+    enum rawrtc_ice_role role;
+    struct rawrtc_ice_gatherer* gatherer;
+    struct rawrtc_ice_transport* ice_transport;
+    struct ice_transport_client* other_client;
+};
+
+static void ice_gatherer_local_candidate_handler(
+    struct rawrtc_ice_candidate* const candidate,
+    char const* const url,  // read-only
+    void* const arg) {
+    struct ice_transport_client* const client = arg;
+
+    // Print local candidate
+    default_ice_gatherer_local_candidate_handler(candidate, url, arg);
+
+    // Add to other client as remote candidate (if type enabled)
+    add_to_other_if_ice_candidate_type_enabled(arg, candidate, client->other_client->ice_transport);
+}
+
+static void client_init(struct ice_transport_client* const local) {
+    // Create ICE gatherer
+    EOE(rawrtc_ice_gatherer_create(
+        &local->gatherer, local->gather_options, default_ice_gatherer_state_change_handler,
+        default_ice_gatherer_error_handler, ice_gatherer_local_candidate_handler, local));
+
+    // Create ICE transport
+    EOE(rawrtc_ice_transport_create(
+        &local->ice_transport, local->gatherer, default_ice_transport_state_change_handler,
+        default_ice_transport_candidate_pair_change_handler, local));
+}
+
+static void client_start(
+    struct ice_transport_client* const local, struct ice_transport_client* const remote) {
+    // Get & set ICE parameters
+    EOE(rawrtc_ice_gatherer_get_local_parameters(&local->ice_parameters, remote->gatherer));
+
+    // Start gathering
+    EOE(rawrtc_ice_gatherer_gather(local->gatherer, NULL));
+
+    // Start ICE transport
+    EOE(rawrtc_ice_transport_start(
+        local->ice_transport, local->gatherer, local->ice_parameters, local->role));
+}
+
+static void client_stop(struct ice_transport_client* const client) {
+    // Stop transport & close gatherer
+    EOE(rawrtc_ice_transport_stop(client->ice_transport));
+    EOE(rawrtc_ice_gatherer_close(client->gatherer));
+
+    // Un-reference & close
+    client->ice_parameters = mem_deref(client->ice_parameters);
+    client->ice_transport = mem_deref(client->ice_transport);
+    client->gatherer = mem_deref(client->gatherer);
+}
+
+int main(int argc, char* argv[argc + 1]) {
+    char** ice_candidate_types = NULL;
+    size_t n_ice_candidate_types = 0;
+    struct rawrtc_ice_gather_options* gather_options;
+    char* const turn_zwuenf_org_urls[] = {"stun:turn.zwuenf.org"};
+    struct ice_transport_client a = {0};
+    struct ice_transport_client b = {0};
+    (void) a.ice_candidate_types;
+    (void) a.n_ice_candidate_types;
+    (void) b.ice_candidate_types;
+    (void) b.n_ice_candidate_types;
+
+    // Debug
+    dbg_init(DBG_DEBUG, DBG_ALL);
+    DEBUG_PRINTF("Init\n");
+
+    // Initialise
+    EOE(rawrtc_init(true));
+
+    // Get enabled ICE candidate types to be added (optional)
+    if (argc > 1) {
+        ice_candidate_types = &argv[1];
+        n_ice_candidate_types = (size_t) argc - 1;
+    }
+
+    // Create ICE gather options
+    EOE(rawrtc_ice_gather_options_create(&gather_options, RAWRTC_ICE_GATHER_POLICY_ALL));
+
+    // Add ICE servers to ICE gather options
+    EOE(rawrtc_ice_gather_options_add_server(
+        gather_options, turn_zwuenf_org_urls, ARRAY_SIZE(turn_zwuenf_org_urls), NULL, NULL,
+        RAWRTC_ICE_CREDENTIAL_TYPE_NONE));
+
+    // Setup client A
+    a.name = "A";
+    a.ice_candidate_types = ice_candidate_types;
+    a.n_ice_candidate_types = n_ice_candidate_types;
+    a.gather_options = gather_options;
+    a.role = RAWRTC_ICE_ROLE_CONTROLLING;
+    a.other_client = &b;
+
+    // Setup client B
+    b.name = "B";
+    b.ice_candidate_types = ice_candidate_types;
+    b.n_ice_candidate_types = n_ice_candidate_types;
+    b.gather_options = gather_options;
+    b.role = RAWRTC_ICE_ROLE_CONTROLLED;
+    b.other_client = &a;
+
+    // Initialise clients
+    client_init(&a);
+    client_init(&b);
+
+    // Start clients
+    client_start(&a, &b);
+    client_start(&b, &a);
+
+    // Listen on stdin
+    EOR(fd_listen(STDIN_FILENO, FD_READ, stop_on_return_handler, NULL));
+
+    // Start main loop
+    EOR(re_main(default_signal_handler));
+
+    // Stop clients
+    client_stop(&a);
+    client_stop(&b);
+
+    // Stop listening on STDIN
+    fd_close(STDIN_FILENO);
+
+    // Free
+    mem_deref(gather_options);
+
+    // Bye
+    before_exit();
+    return 0;
+}