diff --git a/.ci/build_wheel.py b/.ci/build_wheel.py
index 6acac20032..260c796c1e 100644
--- a/.ci/build_wheel.py
+++ b/.ci/build_wheel.py
@@ -15,6 +15,9 @@
     "win": "win_amd64",
     "manylinux1": "manylinux1_x86_64",
     "manylinux_2_17": "manylinux_2_17_x86_64",
+    "linux": "manylinux_2_17_x86_64",  # Accommodate tox.ini platform substitutions
+    "win32": "win_amd64",
+    "darwin": "any",
 }
 
 argParser = argparse.ArgumentParser()
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000000..697a6eab17
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,118 @@
+# This is work in progress, testing workflow in local/CI is gradually being transferred to tox
+
+# Usage instructions:
+# `tox` will run all tests sequentially, `tox --parallel` will run all tests in parallel (much faster).
+# Run specific selection of tests with `tox -e pretest,<list-of-tests>,posttest` e.g., `tox -e pretest,test-api,test-launcher,posttest`
+# `--parallel` flag can be passed when running specific selections.
+
+[tox]
+description = Default tox environment list and core configurations
+
+# List all tests to run in parallel or sequential mode here
+# So invocation can be specified as `tox`/`tox --parallel` to run all tests in sequential/parallel mode
+envlist = pretest,test-{api,launcher,server,local_server,multi_server,remote_workflow,remote_operator,workflow,service,operators},posttest
+
+isolated_build_env = build
+
+[testenv]
+description = Default configuration for test environments, unless overridden
+
+pass_env =
+    PACKAGE_NAME
+    MODULE
+    ANSYS_DPF_ACCEPT_LA
+    ANSYSLMD_LICENSE_FILE
+    AWP_ROOT242
+
+package = external # To allow custom wheel builds
+
+[testenv:build_external]
+description = Environment for custom build of package wheels, solves PyDPF custom wheel building requirement
+
+package_glob = {toxinidir}{/}dist{/}ansys_dpf_core*
+
+# {on_platform} substitution to automatically detect os type.
+commands = 
+    python .ci/build_wheel.py -p {on_platform} -w
+
+[testenv:pretest]
+description = Environment to kill servers and organize test files prior to testing
+
+deps =
+    psutil
+
+skip_install = True
+
+commands = 
+    # Clear any running servers that may be locking resources
+    python -c "import psutil; proc_name = 'Ans.Dpf.Grpc'; nb_procs = len([proc.kill() for proc in psutil.process_iter() if proc_name in proc.name()]); \
+    print(f'Killed \{nb_procs} \{proc_name} processes.')"
+
+    # Organize test files
+    python -c "\
+    import os, shutil; \
+    test_data=['test_launcher','test_server','test_local_server','test_multi_server','test_workflow','test_remote_workflow','test_remote_operator','test_service','test_custom_type_field']; \
+    [(os.makedirs(d, exist_ok=True), shutil.copy('tests/conftest.py', d), shutil.copy(f'tests/\{d}.py', d) if os.path.exists(f'tests/\{d}.py') else None) for d in test_data]; \
+    [os.remove(f'tests/\{d}.py') for d in test_data if os.path.exists(f'tests/\{d}.py')]"
+
+[testenv:posttest]
+description = Environment to kill servers and revert test files to original state after testing
+
+depends = pretest, test-{api,launcher,server,local_server,multi_server,remote_workflow,remote_operator,workflow,service,operators}
+
+deps =
+    psutil
+
+skip_install = True
+
+commands = 
+    # Revert project layout to previous state
+    python -c "\
+    import os, shutil; \
+    test_data=['test_launcher','test_server','test_local_server','test_multi_server','test_workflow','test_remote_workflow','test_remote_operator','test_service', 'test_custom_type_field']; \ 
+    [shutil.move(f'\{d}/\{d}.py', f'tests/\{d}.py') for d in test_data if os.path.exists(f'\{d}/\{d}.py')]; \
+    [shutil.rmtree(d) for d in test_data if os.path.exists(d)]"
+
+    # Clear any running servers that may be locking resources
+    python -c "import psutil; proc_name = 'Ans.Dpf.Grpc'; nb_procs = len([proc.kill() for proc in psutil.process_iter() if proc_name in proc.name()]); \
+    print(f'Killed \{nb_procs} \{proc_name} processes.')"
+
+[testenv:test-{api,launcher,server,local_server,multi_server,remote_workflow,remote_operator,workflow,service,operators}]
+description = Environment where project testing configuration is defined
+
+depends = pretest
+
+setenv =
+    # Pytest extra arguments
+    COVERAGE = --cov=ansys.dpf.core --cov-report=xml --cov-report=html --log-level=ERROR --cov-append
+    RERUNS = --reruns=2 --reruns-delay=1
+    DEBUG = -v -s --durations=10 --durations-min=1.0
+
+    api: JUNITXML = --junitxml=tests/junit/test-results.xml
+    launcher: JUNITXML = --junitxml=tests/junit/test-results2.xml
+    server: JUNITXML = --junitxml=tests/junit/test-results3.xml
+    local_server: JUNITXML = --junitxml=tests/junit/test-results4.xml
+    multi_server: JUNITXML = --junitxml=tests/junit/test-results5.xml
+    remote_workflow: JUNITXML = --junitxml=tests/junit/test-results6.xml
+    remote_operator: JUNITXML = --junitxml=tests/junit/test-results7.xml
+    workflow: JUNITXML = --junitxml=tests/junit/test-results8.xml
+    service: JUNITXML = --junitxml=tests/junit/test-results9.xml
+    operators: JUNITXML = --junitxml=../tests/junit/test-results12.xml
+
+    # Tests sets
+    api: PYTEST_PYTHON_FILES = tests
+    launcher: PYTEST_PYTHON_FILES = test_launcher
+    server: PYTEST_PYTHON_FILES = test_server
+    local_server: PYTEST_PYTHON_FILES = test_local_server
+    multi_server: PYTEST_PYTHON_FILES = test_multi_server
+    remote_workflow: PYTEST_PYTHON_FILES = test_remote_workflow
+    remote_operator: PYTEST_PYTHON_FILES = test_remote_operator
+    workflow: PYTEST_PYTHON_FILES = test_workflow
+    service: PYTEST_PYTHON_FILES = test_service
+    operators: PYTEST_PYTHON_FILES = tests/operators
+
+deps = 
+    -r requirements/requirements_test.txt
+
+commands =
+    pytest {env:PYTEST_PYTHON_FILES} {env:DEBUG} {env:COVERAGE} {env:RERUNS} {env:JUNITXML}
\ No newline at end of file