diff --git a/.travis.yml b/.travis.yml
index 53e04f7cf..328479051 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,18 +25,18 @@ matrix:
     - env: OPTS="--check-signed-off=travis --check-cppcheck --check-doxygen --check-vera --check-license --check-magic-strings --check-pylint"
       install: pip install --user pylint==1.6.5
     - env: OPTS="--jerry-debugger"
-    - env: OPTS="--jerry-tests --jerry-test-suite"
-    - env: OPTS="--jerry-tests --jerry-test-suite --toolchain=cmake/toolchain_linux_armv7l.cmake" TIMEOUT=300
+    - env: OPTS="--quiet --jerry-tests --jerry-test-suite"
+    - env: OPTS="--quiet --jerry-tests --jerry-test-suite --toolchain=cmake/toolchain_linux_armv7l.cmake" TIMEOUT=300
       install: tools/apt-get-install-qemu-arm.sh
     - env: OPTS="--buildoption-test"
-    - env: OPTS="--jerry-tests --jerry-test-suite --buildoptions=--jerry-libc=off,--compile-flag=-m32,--cpointer-32bit=on"
+    - env: OPTS="--quiet --jerry-tests --jerry-test-suite --buildoptions=--jerry-libc=off,--compile-flag=-m32,--cpointer-32bit=on"
     - env: OPTS="--unittests"
     - env: OPTS="--unittests --buildoptions=--cmake-param=-DFEATURE_INIT_FINI=ON"
     - env: OPTS="--test262"
       install: sudo timedatectl set-timezone America/Los_Angeles
     - os: osx
       before_install: tools/brew-install-deps.sh
-      env: OPTS="--jerry-tests --jerry-test-suite --unittests"
+      env: OPTS="--quiet --jerry-tests --jerry-test-suite --unittests"
     - install: echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-
       env:
         # Declaration of the encrypted COVERITY_SCAN_TOKEN, created via the
@@ -59,7 +59,7 @@ matrix:
           packages:
             - gcc-5
             - gcc-5-multilib
-      env: OPTS="--jerry-tests --jerry-test-suite --skip-list=parser-oom.js --buildoptions=--compile-flag=-fsanitize=address,--compile-flag=-m32,--compile-flag=-fno-omit-frame-pointer,--compile-flag=-fno-common,--compile-flag=-O2,--debug,--jerry-libc=off,--static-link=off,--system-allocator=on,--linker-flag=-fuse-ld=gold" ASAN_OPTIONS=detect_stack_use_after_return=1:check_initialization_order=true:strict_init_order=true TIMEOUT=600
+      env: OPTS="--quiet --jerry-tests --jerry-test-suite --skip-list=parser-oom.js --buildoptions=--compile-flag=-fsanitize=address,--compile-flag=-m32,--compile-flag=-fno-omit-frame-pointer,--compile-flag=-fno-common,--compile-flag=-O2,--debug,--jerry-libc=off,--static-link=off,--system-allocator=on,--linker-flag=-fuse-ld=gold" ASAN_OPTIONS=detect_stack_use_after_return=1:check_initialization_order=true:strict_init_order=true TIMEOUT=600
     - compiler: gcc-5
       addons:
         apt:
@@ -68,7 +68,7 @@ matrix:
           packages:
             - gcc-5
             - gcc-5-multilib
-      env: OPTS="--jerry-tests --jerry-test-suite --skip-list=parser-oom.js --buildoptions=--compile-flag=-fsanitize=undefined,--compile-flag=-m32,--compile-flag=-fno-omit-frame-pointer,--compile-flag=-fno-common,--debug,--jerry-libc=off,--static-link=off,--system-allocator=on,--linker-flag=-fuse-ld=gold" UBSAN_OPTIONS=print_stacktrace=1 TIMEOUT=600
+      env: OPTS="--quiet --jerry-tests --jerry-test-suite --skip-list=parser-oom.js --buildoptions=--compile-flag=-fsanitize=undefined,--compile-flag=-m32,--compile-flag=-fno-omit-frame-pointer,--compile-flag=-fno-common,--debug,--jerry-libc=off,--static-link=off,--system-allocator=on,--linker-flag=-fuse-ld=gold" UBSAN_OPTIONS=print_stacktrace=1 TIMEOUT=600
 
     - env: JOBNAME="ESP8266 Build Test"
       cache: ccache
diff --git a/tools/run-tests.py b/tools/run-tests.py
index 8eb19cb83..1ee2e34f3 100755
--- a/tools/run-tests.py
+++ b/tools/run-tests.py
@@ -135,6 +135,8 @@ def get_arguments():
     parser = argparse.ArgumentParser()
     parser.add_argument('--toolchain', metavar='FILE',
                         help='Add toolchain file')
+    parser.add_argument('-q', '--quiet', action='store_true',
+                        help='Only print out failing tests')
     parser.add_argument('--buildoptions', metavar='LIST',
                         help='Add a comma separated list of extra build options to each test')
     parser.add_argument('--skip-list', metavar='LIST',
@@ -266,6 +268,9 @@ def run_jerry_tests(options):
         if options.skip_list:
             skip_list.append(options.skip_list)
 
+        if options.quiet:
+            test_cmd.append("-q")
+
         if skip_list:
             test_cmd.append("--skip-list=" + ",".join(skip_list))
 
@@ -292,6 +297,9 @@ def run_jerry_test_suite(options):
         else:
             test_cmd.append(settings.JERRY_TEST_SUITE_ES51_LIST)
 
+        if options.quiet:
+            test_cmd.append("-q")
+
         if options.skip_list:
             test_cmd.append("--skip-list=" + options.skip_list)
 
@@ -331,7 +339,8 @@ def run_unittests(options):
 
         ret_test |= run_check([
             settings.UNITTEST_RUNNER_SCRIPT,
-            bin_dir_path
+            bin_dir_path,
+            "-q" if options.quiet else "",
         ])
 
     return ret_build | ret_test
diff --git a/tools/runners/run-test-suite.sh b/tools/runners/run-test-suite.sh
index be71f7cbc..a56d6a8d3 100755
--- a/tools/runners/run-test-suite.sh
+++ b/tools/runners/run-test-suite.sh
@@ -15,7 +15,7 @@
 # limitations under the License.
 
 # Usage:
-#       ./tools/runners/run-test-suite.sh ENGINE TESTS [--skip-list=item1,item2] [--snapshot] ENGINE_ARGS....
+#       ./tools/runners/run-test-suite.sh ENGINE TESTS [-q] [--skip-list=item1,item2] [--snapshot] ENGINE_ARGS....
 
 TIMEOUT=${TIMEOUT:=5}
 TIMEOUT_CMD=`which timeout`
@@ -37,6 +37,13 @@ TEST_FILES=$OUTPUT_DIR/$TESTS_BASENAME.files
 TEST_FAILED=$OUTPUT_DIR/$TESTS_BASENAME.failed
 TEST_PASSED=$OUTPUT_DIR/$TESTS_BASENAME.passed
 
+VERBOSE=1
+if [[ "$1" == "-q" ]]
+then
+    unset VERBOSE
+    shift
+fi
+
 if [[ "$1" =~ ^--skip-list=.* ]]
 then
     SKIP_LIST=${1#--skip-list=}
@@ -147,7 +154,7 @@ do
 
         if [ $status_code -eq 0 ]
         then
-            echo "[$tested/$TOTAL] $cmd_line: PASS"
+            test $VERBOSE && echo "[$tested/$TOTAL] $cmd_line: PASS"
 
             cmd_line="${ENGINE#$ROOT_DIR} $ENGINE_ARGS --exec-snapshot $SNAPSHOT_TEMP"
             $TIMEOUT_CMD $TIMEOUT $ENGINE $ENGINE_ARGS --exec-snapshot $SNAPSHOT_TEMP &> $ENGINE_TEMP
@@ -175,7 +182,7 @@ do
 
         failed=$((failed+1))
     else
-        echo "[$tested/$TOTAL] $cmd_line: $PASS"
+        test $VERBOSE && echo "[$tested/$TOTAL] $cmd_line: $PASS"
 
         echo "$test" >> $TEST_PASSED
 
diff --git a/tools/runners/run-unittests.sh b/tools/runners/run-unittests.sh
index 0a235565a..78e94372d 100755
--- a/tools/runners/run-unittests.sh
+++ b/tools/runners/run-unittests.sh
@@ -17,6 +17,13 @@
 DIR="$1"
 shift
 
+VERBOSE=1
+if [ "$1" == "-q" ]
+then
+    unset VERBOSE
+    shift
+fi
+
 UNITTEST_ERROR=$DIR/unittests.failed
 UNITTEST_OK=$DIR/unittests.passed
 
@@ -76,7 +83,7 @@ do
 
         failed=$((failed+1))
     else
-        echo "[$tested/$total] $cmd_line: PASS"
+        test $VERBOSE && echo "[$tested/$total] $cmd_line: PASS"
 
         echo "$unit_test" >> $UNITTEST_OK