diff --git a/CHANGELOG.md b/CHANGELOG.md
index f0e38c7e..e44f4266 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Version _next_
 
+- Add support for _byte_
 - Add support for _date_
 - Move SQLAlchemy relationship construction behind facade
 - Move schema calculations into separate files
diff --git a/README.md b/README.md
index d92da4f9..4684c692 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,7 @@ An example API has been defined using connexion and Flask here:
 - `number` (float only),
 - `boolean`,
 - `string`,
+- `byte`,
 - `date`,
 - `date-time`,
 - `$ref` references for columns and models,
diff --git a/docs/source/technical_details/type_mapping.rst b/docs/source/technical_details/type_mapping.rst
index 201d7faf..077313ac 100644
--- a/docs/source/technical_details/type_mapping.rst
+++ b/docs/source/technical_details/type_mapping.rst
@@ -19,6 +19,8 @@ following mappings:
 +--------------+----------------+-----------------+
 | string       | *undefined*    | String          |
 +--------------+----------------+-----------------+
+|              | byte           | String          |
++--------------+----------------+-----------------+
 |              | date           | Date            |
 +--------------+----------------+-----------------+
 |              | date-time      | DateTime        |
diff --git a/open_alchemy/column_factory/column.py b/open_alchemy/column_factory/column.py
index 76987e22..7a2874aa 100644
--- a/open_alchemy/column_factory/column.py
+++ b/open_alchemy/column_factory/column.py
@@ -272,7 +272,7 @@ def _handle_string(*, artifacts: types.ColumnArtifacts) -> sqlalchemy.String:
         raise exceptions.MalformedSchemaError(
             "The string type does not support autoincrement."
         )
-    if artifacts.format is None:
+    if artifacts.format in {None, "byte"}:
         if artifacts.max_length is None:
             return sqlalchemy.String
         return sqlalchemy.String(length=artifacts.max_length)

Support byte
As a user I want to define a byte format so that I can store and retrieve base64 encoded values from the database.

Support byte as indicated by the appropriate format directive of a string.
diff --git a/tests/open_alchemy/column_factory/test_column.py b/tests/open_alchemy/column_factory/test_column.py
index 96309c35..d2a11fe6 100644
--- a/tests/open_alchemy/column_factory/test_column.py
+++ b/tests/open_alchemy/column_factory/test_column.py
@@ -521,8 +521,9 @@ def test_handle_string_invalid_format():
         (None, sqlalchemy.String),
         ("date", sqlalchemy.Date),
         ("date-time", sqlalchemy.DateTime),
+        ("byte", sqlalchemy.String),
     ],
-    ids=["None", "date", "date-time"],
+    ids=["None", "date", "date-time", "byte"],
 )
 @pytest.mark.column
 def test_handle_string(format_, expected_type):

pip install -e .[dev,test]
parse_log_pytest
requirements.txt
3.8.0
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
alabaster==0.7.13
anyio==4.5.2
asgiref==3.8.1
astroid==3.2.4
attrs==25.3.0
babel==2.17.0
bandit==1.7.10
black==24.8.0
blinker==1.8.2
cachetools==5.5.2
certifi==2025.1.31
cfgv==3.4.0
chardet==5.2.0
charset-normalizer==3.4.1
click==8.1.8
colorama==0.4.6
connexion==3.2.0
coverage==7.6.1
dill==0.3.9
distlib==0.3.9
doc8==1.1.2
docutils==0.20.1
exceptiongroup==1.2.2
filelock==3.16.1
flake8==5.0.4
Flask==3.0.3
Flask-SQLAlchemy==3.1.1
greenlet==3.1.1
h11==0.14.0
httpcore==1.0.7
httpx==0.28.1
identify==2.6.1
idna==3.10
imagesize==1.4.1
importlib-resources==5.13.0
importlib_metadata==8.5.0
inflection==0.5.1
iniconfig==2.1.0
isort==5.13.2
itsdangerous==2.2.0
Jinja2==3.1.6
jsonschema==4.23.0
jsonschema-specifications==2023.12.1
markdown-it-py==3.0.0
MarkupSafe==2.1.5
mccabe==0.7.0
mdurl==0.1.2
mypy==1.14.1
mypy-extensions==1.0.0
nodeenv==1.9.1
-e git+https://github.com/jdkandersson/OpenAlchemy.git@efb83519b59586ce725b34eeb345f22a53fb58c3#egg=OpenAlchemy
packaging==24.2
pathspec==0.12.1
pbr==6.1.1
pkgutil_resolve_name==1.3.10
platformdirs==4.3.6
pluggy==1.5.0
pre-commit==3.5.0
pycodestyle==2.9.1
pydocstyle==6.3.0
pyflakes==2.5.0
Pygments==2.19.1
pylint==3.2.7
pyproject-api==1.8.0
pytest==8.3.5
pytest-bandit==0.6.1
pytest-cov==5.0.0
pytest-flake8==1.2.2
pytest-flask==1.3.0
pytest-flask-sqlalchemy==1.1.0
pytest-mock==3.14.0
pytest-randomly==3.15.0
python-multipart==0.0.20
pytz==2025.2
PyYAML==6.0.2
referencing==0.35.1
requests==2.32.3
restructuredtext_lint==1.4.0
rich==14.0.0
rpds-py==0.20.1
sniffio==1.3.1
snowballstemmer==2.2.0
Sphinx==7.1.2
sphinxcontrib-applehelp==1.0.4
sphinxcontrib-devhelp==1.0.2
sphinxcontrib-htmlhelp==2.0.1
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==1.0.3
sphinxcontrib-serializinghtml==1.1.5
SQLAlchemy==2.0.40
starlette==0.44.0
stevedore==5.3.0
swagger_ui_bundle==1.1.0
tomli==2.2.1
tomlkit==0.13.2
tox==4.25.0
tox-pyenv==1.1.0
typing_extensions==4.13.0
urllib3==2.2.3
virtualenv==20.29.3
Werkzeug==3.0.6
zipp==3.20.2

name: OpenAlchemy
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - libedit=3.1.20230828=h5eee18b_0
  - libffi=3.2.1=hf484d3e_1007
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - pip=24.2=py38h06a4308_0
  - python=3.8.0=h0371630_2
  - readline=7.0=h7b6447c_5
  - setuptools=75.1.0=py38h06a4308_0
  - sqlite=3.33.0=h62c20be_0
  - tk=8.6.14=h39e8969_0
  - wheel=0.44.0=py38h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - alabaster==0.7.13
      - anyio==4.5.2
      - asgiref==3.8.1
      - astroid==3.2.4
      - attrs==25.3.0
      - babel==2.17.0
      - bandit==1.7.10
      - black==24.8.0
      - blinker==1.8.2
      - cachetools==5.5.2
      - certifi==2025.1.31
      - cfgv==3.4.0
      - chardet==5.2.0
      - charset-normalizer==3.4.1
      - click==8.1.8
      - colorama==0.4.6
      - connexion==3.2.0
      - coverage==7.6.1
      - dill==0.3.9
      - distlib==0.3.9
      - doc8==1.1.2
      - docutils==0.20.1
      - exceptiongroup==1.2.2
      - filelock==3.16.1
      - flake8==5.0.4
      - flask==3.0.3
      - flask-sqlalchemy==3.1.1
      - greenlet==3.1.1
      - h11==0.14.0
      - httpcore==1.0.7
      - httpx==0.28.1
      - identify==2.6.1
      - idna==3.10
      - imagesize==1.4.1
      - importlib-metadata==8.5.0
      - importlib-resources==5.13.0
      - inflection==0.5.1
      - iniconfig==2.1.0
      - isort==5.13.2
      - itsdangerous==2.2.0
      - jinja2==3.1.6
      - jsonschema==4.23.0
      - jsonschema-specifications==2023.12.1
      - markdown-it-py==3.0.0
      - markupsafe==2.1.5
      - mccabe==0.7.0
      - mdurl==0.1.2
      - mypy==1.14.1
      - mypy-extensions==1.0.0
      - nodeenv==1.9.1
      - packaging==24.2
      - pathspec==0.12.1
      - pbr==6.1.1
      - pkgutil-resolve-name==1.3.10
      - platformdirs==4.3.6
      - pluggy==1.5.0
      - pre-commit==3.5.0
      - pycodestyle==2.9.1
      - pydocstyle==6.3.0
      - pyflakes==2.5.0
      - pygments==2.19.1
      - pylint==3.2.7
      - pyproject-api==1.8.0
      - pytest==8.3.5
      - pytest-bandit==0.6.1
      - pytest-cov==5.0.0
      - pytest-flake8==1.2.2
      - pytest-flask==1.3.0
      - pytest-flask-sqlalchemy==1.1.0
      - pytest-mock==3.14.0
      - pytest-randomly==3.15.0
      - python-multipart==0.0.20
      - pytz==2025.2
      - pyyaml==6.0.2
      - referencing==0.35.1
      - requests==2.32.3
      - restructuredtext-lint==1.4.0
      - rich==14.0.0
      - rpds-py==0.20.1
      - sniffio==1.3.1
      - snowballstemmer==2.2.0
      - sphinx==7.1.2
      - sphinxcontrib-applehelp==1.0.4
      - sphinxcontrib-devhelp==1.0.2
      - sphinxcontrib-htmlhelp==2.0.1
      - sphinxcontrib-jsmath==1.0.1
      - sphinxcontrib-qthelp==1.0.3
      - sphinxcontrib-serializinghtml==1.1.5
      - sqlalchemy==2.0.40
      - starlette==0.44.0
      - stevedore==5.3.0
      - swagger-ui-bundle==1.1.0
      - tomli==2.2.1
      - tomlkit==0.13.2
      - tox==4.25.0
      - tox-pyenv==1.1.0
      - typing-extensions==4.13.0
      - urllib3==2.2.3
      - virtualenv==20.29.3
      - werkzeug==3.0.6
      - zipp==3.20.2
prefix: /opt/conda/envs/OpenAlchemy

tests/open_alchemy/column_factory/test_column.py::test_handle_string[byte]
tests/open_alchemy/column_factory/test_column.py::flake-8::FLAKE8 tests/open_alchemy/column_factory/test_column.py::test_handle_integer[None] tests/open_alchemy/column_factory/test_column.py::test_handle_integer_invalid_format tests/open_alchemy/column_factory/test_column.py::test_check_schema_schema[type tests/open_alchemy/column_factory/test_column.py::test_construct_column_unique[false] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[maxLength tests/open_alchemy/column_factory/test_column.py::test_construct_column_primary_key[true] tests/open_alchemy/column_factory/test_column.py::test_handle_string_invalid[autoincrement] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[index tests/open_alchemy/column_factory/test_column.py::test_check_schema_schema_other tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[foreign tests/open_alchemy/column_factory/test_column.py::test_handle_string[date] tests/open_alchemy/column_factory/test_column.py::test_handle_number[float] tests/open_alchemy/column_factory/test_column.py::test_construct_column_autoincrement[none] tests/open_alchemy/column_factory/test_column.py::test_handle_boolean_invalid[max_length] tests/open_alchemy/column_factory/test_column.py::test_handle_string_max_length tests/open_alchemy/column_factory/test_column.py::test_determine_type[string] tests/open_alchemy/column_factory/test_column.py::test_construct_column_index[none] tests/open_alchemy/column_factory/test_column.py::test_construct_column[string] tests/open_alchemy/column_factory/test_column.py::test_check_schema_artifacts[type tests/open_alchemy/column_factory/test_column.py::test_construct_column_unique[true] tests/open_alchemy/column_factory/test_column.py::test_calculate_nullable[required tests/open_alchemy/column_factory/test_column.py::test_construct_column_autoincrement[false] tests/open_alchemy/column_factory/test_column.py::test_determine_type[integer] tests/open_alchemy/column_factory/test_column.py::test_construct_column[boolean] tests/open_alchemy/column_factory/test_column.py::test_construct_column[integer] tests/open_alchemy/column_factory/test_column.py::test_handle_integer_invalid[max_length] tests/open_alchemy/column_factory/test_column.py::test_construct_column_index[true] tests/open_alchemy/column_factory/test_column.py::test_handle_number_invalid_format tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[unique tests/open_alchemy/column_factory/test_column.py::test_handle_integer[int32] tests/open_alchemy/column_factory/test_column.py::test_determine_type[number] tests/open_alchemy/column_factory/test_column.py::test_integration tests/open_alchemy/column_factory/test_column.py::test_construct_column_index[false] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[type tests/open_alchemy/column_factory/test_column.py::test_handle_number[None] tests/open_alchemy/column_factory/test_column.py::test_construct_column_nullable[true] tests/open_alchemy/column_factory/test_column.py::test_construct_column_foreign_key tests/open_alchemy/column_factory/test_column.py::test_handle_boolean tests/open_alchemy/column_factory/test_column.py::test_construct_column_nullable[false] tests/open_alchemy/column_factory/test_column.py::test_handle_number_invalid[autoincrement] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[primary tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[autoincrement tests/open_alchemy/column_factory/test_column.py::test_handle_integer[int64] tests/open_alchemy/column_factory/test_column.py::test_handle_string[date-time] tests/open_alchemy/column_factory/test_column.py::test_construct_column_unique[none] tests/open_alchemy/column_factory/test_column.py::test_handle_string_invalid_format tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[x-dict-ignore tests/open_alchemy/column_factory/test_column.py::test_construct_column_primary_key[none] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[format tests/open_alchemy/column_factory/test_column.py::test_handle_boolean_invalid[format] tests/open_alchemy/column_factory/test_column.py::test_handle_boolean_invalid[autoincrement] tests/open_alchemy/column_factory/test_column.py::test_check_schema_invalid[nullable tests/open_alchemy/column_factory/test_column.py::test_handle_string[None] tests/open_alchemy/column_factory/test_column.py::test_check_schema_required tests/open_alchemy/column_factory/test_column.py::test_construct_column_primary_key[false] tests/open_alchemy/column_factory/test_column.py::test_handle_number_invalid[max_length] tests/open_alchemy/column_factory/test_column.py::test_determine_type_unsupported tests/open_alchemy/column_factory/test_column.py::test_construct_column[number] tests/open_alchemy/column_factory/test_column.py::test_construct_column_autoincrement[true] tests/open_alchemy/column_factory/test_column.py::test_determine_type[boolean]
docs/source/technical_details/type_mapping.rst README.md open_alchemy/column_factory/column.py CHANGELOG.md
docs/source/technical_details/type_mapping.rst README.md open_alchemy/column_factory/column.py CHANGELOG.md