diff --git a/workspace_tools/build.py b/workspace_tools/build.py
index 411c0510af..89534408cc 100755
--- a/workspace_tools/build.py
+++ b/workspace_tools/build.py
@@ -30,6 +30,7 @@ from workspace_tools.toolchains import print_notify_verbose
 from workspace_tools.targets import TARGET_NAMES, TARGET_MAP
 from workspace_tools.options import get_default_options_parser
 from workspace_tools.build_api import build_mbed_libs, build_lib
+from workspace_tools.build_api import mcu_toolchain_matrix
 
 
 if __name__ == '__main__':
@@ -55,10 +56,17 @@ if __name__ == '__main__':
                       default=False, help="Compile the u-blox library")
     parser.add_option("-D", "", action="append", dest="macros",
                       help="Add a macro definition")
+    parser.add_option("-S", "--supported-toolchains", action="store_true", dest="supported_toolchains",
+                      default=False, help="Displays supported matrix of MCUs and toolchains")
     parser.add_option("-x", "--extra-verbose-notifications", action="store_true", dest="extra_verbose_notify",
                       default=False, help="Makes compiler more verbose, CI friendly.")
     (options, args) = parser.parse_args()
 
+    # Only prints matrix of supported toolchains
+    if options.supported_toolchains:
+        mcu_toolchain_matrix()
+        exit(0)
+
     # Get target list
     if options.mcu:
         mcu_list = (options.mcu).split(",")
diff --git a/workspace_tools/build_api.py b/workspace_tools/build_api.py
index a3be5bdfbc..82be0c42e3 100644
--- a/workspace_tools/build_api.py
+++ b/workspace_tools/build_api.py
@@ -22,6 +22,7 @@ from workspace_tools.utils import mkdir
 from workspace_tools.toolchains import TOOLCHAIN_CLASSES
 from workspace_tools.paths import MBED_TARGETS_PATH, MBED_LIBRARIES, MBED_API, MBED_HAL, MBED_COMMON
 from workspace_tools.libraries import Library
+from workspace_tools.targets import TARGET_NAMES, TARGET_MAP
 
 
 def build_project(src_path, build_path, target, toolchain_name,
@@ -199,3 +200,38 @@ def build_mbed_libs(target, toolchain_name, options=None, verbose=False, clean=F
     toolchain.build_library(objects, BUILD_TOOLCHAIN, "mbed")
     for o in separate_objects:
         toolchain.copy_files(o, BUILD_TOOLCHAIN)
+
+
+def get_unique_supported_toolchains():
+    """ Get list of all unique toolchains supported by targets """
+    unique_supported_toolchains = []
+    for target in TARGET_NAMES:
+        for toolchain in TARGET_MAP[target].supported_toolchains:
+            if toolchain not in unique_supported_toolchains:
+                unique_supported_toolchains.append(toolchain)
+    return unique_supported_toolchains
+
+
+def mcu_toolchain_matrix():
+    """  Shows target map using prettytable """
+    unique_supported_toolchains = get_unique_supported_toolchains()
+    from prettytable import PrettyTable # Only use it in this function so building works without extra modules
+
+    # All tests status table print
+    columns = ["Platform"] + unique_supported_toolchains
+    pt = PrettyTable(["Platform"] + unique_supported_toolchains)
+    # Align table
+    for col in columns:
+        pt.align[col] = "c"
+    pt.align["Platform"] = "l"
+
+    for target in sorted(TARGET_NAMES):
+        row = [target]  # First column is platform name
+        for unique_toolchain in unique_supported_toolchains:
+            text = "-"
+            if unique_toolchain in TARGET_MAP[target].supported_toolchains:
+                text = "Supported"
+            row.append(text);
+        pt.add_row(row)
+    print pt
+
diff --git a/workspace_tools/singletest.py b/workspace_tools/singletest.py
index 57df76557a..ba66893455 100644
--- a/workspace_tools/singletest.py
+++ b/workspace_tools/singletest.py
@@ -89,8 +89,10 @@ from Queue import Queue, Empty
 
 ROOT = abspath(join(dirname(__file__), ".."))
 sys.path.insert(0, ROOT)
+
 # Imports related to mbed build pi
 from workspace_tools.build_api import build_project, build_mbed_libs, build_lib
+from workspace_tools.build_api import mcu_toolchain_matrix
 from workspace_tools.paths import BUILD_DIR
 from workspace_tools.paths import HOST_TESTS
 from workspace_tools.targets import TARGET_MAP
@@ -98,7 +100,6 @@ from workspace_tools.tests import TEST_MAP
 from workspace_tools.tests import TESTS
 from workspace_tools.libraries import LIBRARIES
 
-
 # Be sure that the tools directory is in the search path
 ROOT = abspath(join(dirname(__file__), ".."))
 sys.path.insert(0, ROOT)
@@ -523,6 +524,12 @@ if __name__ == '__main__':
                       dest='test_by_names',
                       help='Runs only test enumerated it this switch')
 
+    parser.add_option("-S", "--supported-toolchains",
+                      action="store_true",
+                      dest="supported_toolchains",
+                      default=False,
+                      help="Displays supported matrix of MCUs and toolchains")
+
     parser.add_option('-v', '--verbose',
                       dest='verbose',
                       default=False,
@@ -539,6 +546,12 @@ if __name__ == '__main__':
         get_result_summary_table()
         exit(0)
 
+    # Only prints matrix of supported toolchains
+    if opts.supported_toolchains:
+        mcu_toolchain_matrix()
+        exit(0)
+
+
     # Open file with test specification
     # test_spec_filename tells script which targets and their toolchain(s)
     # should be covered by the test scenario