diff --git a/setup/web_widget_char_size/odoo/addons/web_widget_char_size b/setup/web_widget_char_size/odoo/addons/web_widget_char_size
new file mode 120000
index 000000000..abd6fe84b
--- /dev/null
+++ b/setup/web_widget_char_size/odoo/addons/web_widget_char_size
@@ -0,0 +1 @@
+../../../../web_widget_char_size
\ No newline at end of file
diff --git a/setup/web_widget_char_size/setup.py b/setup/web_widget_char_size/setup.py
new file mode 100644
index 000000000..28c57bb64
--- /dev/null
+++ b/setup/web_widget_char_size/setup.py
@@ -0,0 +1,6 @@
+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)
diff --git a/web_widget_char_size/__init__.py b/web_widget_char_size/__init__.py
new file mode 100644
index 000000000..7af42f99f
--- /dev/null
+++ b/web_widget_char_size/__init__.py
@@ -0,0 +1 @@
+#  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
diff --git a/web_widget_char_size/__manifest__.py b/web_widget_char_size/__manifest__.py
new file mode 100644
index 000000000..626c09854
--- /dev/null
+++ b/web_widget_char_size/__manifest__.py
@@ -0,0 +1,17 @@
+#  Copyright 2021 Simone Rubino - Agile Business Group
+#  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    "name": "Widget Char size",
+    "summary": "Add size option to Char widget",
+    "version": "14.0.1.0.0",
+    "category": "Hidden",
+    "website": "https://github.com/OCA/web",
+    "author": "Agile Business Group, Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "depends": [
+        "web",
+    ],
+    "data": [
+        "views/assets.xml",
+    ],
+}
diff --git a/web_widget_char_size/readme/DESCRIPTION.rst b/web_widget_char_size/readme/DESCRIPTION.rst
new file mode 100644
index 000000000..afdfd0a79
--- /dev/null
+++ b/web_widget_char_size/readme/DESCRIPTION.rst
@@ -0,0 +1,11 @@
+This module allows to add an option `size` to Char fields in web client:
+
+.. code-block:: XML
+
+    <field name="sized_5_field" options="{'size': 5}"/>
+
+that allows to enter only the specified number of characters in the field.
+
+Note that adding the `size=` attribute in Char field definition raises the following warning:
+
+ unknown parameter 'size', if this is an actual parameter you may want to override the method _valid_field_parameter on the relevant model in order to allow it
diff --git a/web_widget_char_size/static/src/js/char_widget.js b/web_widget_char_size/static/src/js/char_widget.js
new file mode 100644
index 000000000..9315f3ecc
--- /dev/null
+++ b/web_widget_char_size/static/src/js/char_widget.js
@@ -0,0 +1,16 @@
+odoo.define("web_widget_char_size.char_widget", function (require) {
+    "use strict";
+
+    var BasicFields = require("web.basic_fields");
+
+    BasicFields.FieldChar.include({
+        _renderEdit: function () {
+            var def = this._super.apply(this, arguments);
+            var option_size = this.nodeOptions.size;
+            if (option_size && option_size > 0) {
+                this.$el.attr("maxlength", option_size);
+            }
+            return def;
+        },
+    });
+});
diff --git a/web_widget_char_size/views/assets.xml b/web_widget_char_size/views/assets.xml
new file mode 100644
index 000000000..04961071d
--- /dev/null
+++ b/web_widget_char_size/views/assets.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+  ~ Copyright 2021 Simone Rubino - Agile Business Group
+  ~ License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+  -->
+<odoo>
+    <template
+        id="assets_backend"
+        name="web_widget_char_size assets"
+        inherit_id="web.assets_backend"
+    >
+        <xpath expr="." position="inside">
+            <script
+                type="text/javascript"
+                src="/web_widget_char_size/static/src/js/char_widget.js"
+            />
+        </xpath>
+    </template>
+</odoo>