diff --git a/doc/DEVELOPMENT.md b/doc/DEVELOPMENT.md
index 3de1dda..fcc92e3 100644
--- a/doc/DEVELOPMENT.md
+++ b/doc/DEVELOPMENT.md
@@ -139,3 +139,27 @@ Use this commit format:
 ```bash
 git commit -am "[#ticket] subject: short sentence"
 ```
+
+# Format code
+## Python
+Use [black](https://github.com/psf/black)
+```bash
+./script/maintenance/black.sh ./addons/TechnoLibre_odoo-code-generator
+```
+
+Or if you prefer [oca-autopep8](https://github.com/psf/black)
+```bash
+./script/maintenance/autopep8.sh ./addons/TechnoLibre_odoo-code-generator
+```
+
+## HTML and css
+Use [prettier](https://github.com/prettier/prettier)
+```bash
+./script/maintenance/prettier.sh ./addons/TechnoLibre_odoo-code-generator
+```
+
+## Javascript
+Use [prettier](https://github.com/prettier/prettier)
+```bash
+./script/maintenance/prettier.sh --tab-width 4 ./addons/TechnoLibre_odoo-code-generator
+```
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 5fe10c7..aa13444 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update \
             fonts-noto-cjk \
             gnupg \
             libssl-dev \
-	    node-less \
+            node-less \
             npm \
             python3-num2words \
             python3-pip \
@@ -38,6 +38,8 @@ RUN apt-get update \
         && apt-get install -y --no-install-recommends ./wkhtmltox.deb \
         && rm -rf /var/lib/apt/lists/* wkhtmltox.deb
 
+RUN npm i prettier
+
 # install latest postgresql-client
 RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ buster-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
 	&& GNUPGHOME="$(mktemp -d)" \
diff --git a/requirements.txt b/requirements.txt
index ee94530..9d87a8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,6 +37,11 @@ pylint-odoo
 git+https://github.com/oca/pylint-odoo.git#egg=pylint-odoo
 # oca-maintainers-tools
 # git+https://github.com/OCA/maintainer-tools.git#egg=oca-maintainers-tools
+xmlformatter
+html5print
+css-html-prettify
+BeautifulSoup4
+black
 
 # For updating poetry
 toml
diff --git a/script/install_OSX_dependency.sh b/script/install_OSX_dependency.sh
index 3866f97..42c99bb 100755
--- a/script/install_OSX_dependency.sh
+++ b/script/install_OSX_dependency.sh
@@ -35,6 +35,7 @@ echo  "\n---- Installing nodeJS NPM and rtlcss for LTR support ----"
 brew install nodejs npm openssl
 sudo npm install -g rtlcss
 sudo npm install -g less
+sudo npm install -g prettier
 yes n|pyenv install 3.7.7
 pyenv local 3.7.7
 
diff --git a/script/install_debian_dependency.sh b/script/install_debian_dependency.sh
index 373dda7..dab9ab5 100755
--- a/script/install_debian_dependency.sh
+++ b/script/install_debian_dependency.sh
@@ -55,6 +55,9 @@ sudo apt-get install nodejs npm -y
 sudo npm install -g rtlcss
 sudo npm install -g less
 
+echo -e "\n---- Test tool ----"
+sudo npm install -g prettier
+
 sudo ln -fs /usr/local/bin/lessc /usr/bin/lessc
 
 if [ ${EL_INSTALL_NGINX} = "True" ]; then
diff --git a/script/maintenance/autopep8.sh b/script/maintenance/autopep8.sh
new file mode 100755
index 0000000..9a3d506
--- /dev/null
+++ b/script/maintenance/autopep8.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# This will format all python file
+# argument 1: directory or file to format
+NPROC=$(nproc)
+source ./script/OCA_maintainer-tools/env/bin/activate
+oca-autopep8 -j ${NPROC} --max-line-length 100 -ari $@
diff --git a/script/maintenance/black.sh b/script/maintenance/black.sh
new file mode 100755
index 0000000..2bb5324
--- /dev/null
+++ b/script/maintenance/black.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+# This will format all python file
+# argument 1: directory or file to format
+source ./.venv/bin/activate
+black -l 100 -t py37 $@
diff --git a/script/maintenance/prettier.sh b/script/maintenance/prettier.sh
new file mode 100755
index 0000000..38c5fbe
--- /dev/null
+++ b/script/maintenance/prettier.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+# This will format all js,css,html
+# argument 1: directory or file to format
+prettier --write $@