diff --git a/packages/ckeditor5-table/package.json b/packages/ckeditor5-table/package.json
index 2aa89f0068a..55941c8ac8a 100644
--- a/packages/ckeditor5-table/package.json
+++ b/packages/ckeditor5-table/package.json
@@ -24,6 +24,7 @@
     "@ckeditor/ckeditor5-editor-classic": "^32.0.0",
     "@ckeditor/ckeditor5-engine": "^32.0.0",
     "@ckeditor/ckeditor5-horizontal-line": "^32.0.0",
+    "@ckeditor/ckeditor5-html-support": "^32.0.0",
     "@ckeditor/ckeditor5-image": "^32.0.0",
     "@ckeditor/ckeditor5-indent": "^32.0.0",
     "@ckeditor/ckeditor5-list": "^32.0.0",
@@ -35,6 +36,7 @@
     "@ckeditor/ckeditor5-undo": "^32.0.0",
     "@ckeditor/ckeditor5-utils": "^32.0.0",
     "@ckeditor/ckeditor5-widget": "^32.0.0",
+    "@ckeditor/ckeditor5-source-editing": "^32.0.0",
     "json-diff": "^0.5.4",
     "webpack": "^5.58.1",
     "webpack-cli": "^4.9.0"
diff --git a/packages/ckeditor5-table/src/plaintableoutput.js b/packages/ckeditor5-table/src/plaintableoutput.js
new file mode 100644
index 00000000000..f538c68a0b5
--- /dev/null
+++ b/packages/ckeditor5-table/src/plaintableoutput.js
@@ -0,0 +1,153 @@
+/**
+ * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module table/plaintableoutput
+ */
+
+import { Plugin } from 'ckeditor5/src/core';
+import Table from './table';
+
+/**
+ * The plain table output feature.
+ *
+ * @extends module:core/plugin~Plugin
+ */
+export default class PlainTableOutput extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	static get pluginName() {
+		return 'PlainTableOutput';
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	static get requires() {
+		return [ Table ];
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	init() {
+		const editor = this.editor;
+
+		// Override default table data downcast converter.
+		editor.conversion.for( 'dataDowncast' ).elementToStructure( {
+			model: 'table',
+			view: downcastTableElement,
+			converterPriority: 'high'
+		} );
+
+		// Make sure table <caption> is always downcasted to <caption> in the data pipeline.
+		if ( editor.plugins.has( 'TableCaption' ) ) {
+			editor.conversion.for( 'dataDowncast' ).elementToElement( {
+				model: 'caption',
+				view: ( modelElement, { writer } ) => {
+					if ( modelElement.parent.name === 'table' ) {
+						return writer.createContainerElement( 'caption' );
+					}
+
+					return writer.createContainerElement( 'figcaption' );
+				},
+				converterPriority: 'high'
+			} );
+		}
+
+		// Handle border-style, border-color, border-width and background-color table attributes.
+		if ( editor.plugins.has( 'TableProperties' ) ) {
+			downcastTableBorderAndBackgroundAttributes( editor );
+		}
+	}
+}
+
+// The plain table downcast converter callback.
+//
+// @private
+// @param {module:engine/model/element~Element} Table model element.
+// @param {module:engine/conversion/downcastdispatcher~DowncastConversionApi} conversionApi The conversion API object.
+// @returns {module:engine/view/containerelement~ContainerElement} Created element.
+function downcastTableElement( table, { writer } ) {
+	const headingRows = table.getAttribute( 'headingRows' ) || 0;
+
+	// Table head rows slot.
+	const headRowsSlot = writer.createSlot( element =>
+		element.is( 'element', 'tableRow' ) && element.index < headingRows
+	);
+
+	// Table body rows slot.
+	const bodyRowsSlot = writer.createSlot( element =>
+		element.is( 'element', 'tableRow' ) && element.index >= headingRows
+	);
+
+	// Table children slot.
+	const childrenSlot = writer.createSlot( element => !element.is( 'element', 'tableRow' ) );
+
+	// Table <thead> element with all the heading rows.
+	const theadElement = writer.createContainerElement( 'thead', null, headRowsSlot );
+
+	// Table <tbody> element with all the body rows.
+	const tbodyElement = writer.createContainerElement( 'tbody', null, bodyRowsSlot );
+
+	// Table contents element containing <thead> and <tbody> when necessary.
+	const tableContentElements = [];
+
+	if ( headingRows ) {
+		tableContentElements.push( theadElement );
+	}
+
+	if ( headingRows < table.childCount ) {
+		tableContentElements.push( tbodyElement );
+	}
+
+	// Create table structure.
+	//
+	// <table>
+	//    {children-slot-like-caption}
+	//    <thead>
+	//        {table-head-rows-slot}
+	//    </thead>
+	//    <tbody>
+	//        {table-body-rows-slot}
+	//    </tbody>
+	// </table>
+	return writer.createContainerElement( 'table', null, [ childrenSlot, ...tableContentElements ] );
+}
+
+// Register table border and background attributes converters.
+//
+// @private
+// @param {module:core/editor/editor~Editor} editor
+function downcastTableBorderAndBackgroundAttributes( editor ) {
+	const modelAttributes = {
+		'border-width': 'tableBorderWidth',
+		'border-color': 'tableBorderColor',
+		'border-style': 'tableBorderStyle',
+		'background-color': 'tableBackgroundColor'
+	};
+
+	for ( const [ styleName, modelAttribute ] of Object.entries( modelAttributes ) ) {
+		editor.conversion.for( 'dataDowncast' ).add( dispatcher => {
+			return dispatcher.on( `attribute:${ modelAttribute }:table`, ( evt, data, conversionApi ) => {
+				const { item, attributeNewValue } = data;
+				const { mapper, writer } = conversionApi;
+
+				if ( !conversionApi.consumable.consume( item, evt.name ) ) {
+					return;
+				}
+
+				const table = mapper.toViewElement( item );
+
+				if ( attributeNewValue ) {
+					writer.setStyle( styleName, attributeNewValue, table );
+				} else {
+					writer.removeStyle( styleName, table );
+				}
+			}, { priority: 'high' } );
+		} );
+	}
+}
diff --git a/packages/ckeditor5-table/tests/manual/plaintableoutput.html b/packages/ckeditor5-table/tests/manual/plaintableoutput.html
new file mode 100644
index 00000000000..3ad135adf2e
--- /dev/null
+++ b/packages/ckeditor5-table/tests/manual/plaintableoutput.html
@@ -0,0 +1,32 @@
+<div id="editor">
+	<table>
+		<caption>Monthly savings</caption>
+		<tr>
+			<td>Month</td>
+			<td>Savings</td>
+		</tr>
+		<tr>
+			<td>January</td>
+			<td>$100</td>
+		</tr>
+	</table>
+	<figure class="image">
+		<img src="sample.jpg" />
+		<figcaption>CKEditor logo - caption</figcaption>
+	</figure>
+</div>
+
+<style>
+	.editor-output {
+		margin-top: 30px;
+	}
+
+	#editor-data {
+		width: 100%;
+	}
+</style>
+
+<div class="editor-output">
+	<h5>Editor data</h5>
+	<pre id="editor-data" rows="20"></pre>
+</div>
diff --git a/packages/ckeditor5-table/tests/manual/plaintableoutput.js b/packages/ckeditor5-table/tests/manual/plaintableoutput.js
new file mode 100644
index 00000000000..48647d4c6cb
--- /dev/null
+++ b/packages/ckeditor5-table/tests/manual/plaintableoutput.js
@@ -0,0 +1,90 @@
+/**
+ * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/* globals console, document, window */
+
+import { formatHtml } from '@ckeditor/ckeditor5-source-editing/src/utils/formathtml';
+import ClassicEditor from '@ckeditor/ckeditor5-editor-classic/src/classiceditor';
+import ArticlePluginSet from '@ckeditor/ckeditor5-core/tests/_utils/articlepluginset';
+import SourceEditing from '@ckeditor/ckeditor5-source-editing/src/sourceediting';
+import GeneralHtmlSupport from '@ckeditor/ckeditor5-html-support/src/generalhtmlsupport';
+import Table from '../../src/table';
+import TableToolbar from '../../src/tabletoolbar';
+import TableSelection from '../../src/tableselection';
+import TableClipboard from '../../src/tableclipboard';
+import TableProperties from '../../src/tableproperties';
+import TableCellProperties from '../../src/tablecellproperties';
+import TableCaption from '../../src/tablecaption';
+import PlainTableOutput from '../../src/plaintableoutput';
+
+ClassicEditor
+	.create( document.querySelector( '#editor' ), {
+		plugins: [
+			ArticlePluginSet,
+			Table,
+			TableToolbar,
+			TableSelection,
+			TableClipboard,
+			TableProperties,
+			TableCellProperties,
+			TableCaption,
+			PlainTableOutput,
+			GeneralHtmlSupport,
+			SourceEditing
+		],
+		toolbar: [
+			'heading',
+			'|',
+			'insertTable',
+			'|',
+			'bold',
+			'italic',
+			'link',
+			'|',
+			'bulletedList',
+			'numberedList',
+			'blockQuote',
+			'|',
+			'undo',
+			'redo',
+			'sourceEditing'
+		],
+		table: {
+			contentToolbar: [
+				'tableColumn',
+				'tableRow',
+				'mergeTableCells',
+				'tableProperties',
+				'tableCellProperties',
+				'toggleTableCaption'
+			]
+		},
+		image: {
+			toolbar: [ 'imageStyle:inline', 'imageStyle:block', 'imageStyle:side', '|', 'imageTextAlternative' ]
+		},
+		htmlSupport: {
+			allow: [
+				{
+					name: /^(table|tbody|thead|tr|td|th|caption)$/,
+					attributes: true,
+					classes: true,
+					styles: true
+				}
+			]
+		}
+	} )
+	.then( editor => {
+		window.editor = editor;
+
+		const element = document.getElementById( 'editor-data' );
+		element.innerText = formatHtml( editor.getData() );
+
+		editor.model.document.on( 'change:data', () => {
+			element.innerText = formatHtml( editor.getData() );
+		} );
+	} )
+	.catch( err => {
+		console.error( err.stack );
+	} );
diff --git a/packages/ckeditor5-table/tests/manual/plaintableoutput.md b/packages/ckeditor5-table/tests/manual/plaintableoutput.md
new file mode 100644
index 00000000000..b916454a9be
--- /dev/null
+++ b/packages/ckeditor5-table/tests/manual/plaintableoutput.md
@@ -0,0 +1,35 @@
+### Plain table output
+
+Any table added to this editor should be downcasted in the data pipeline to the plain table HTML.
+
+It should have no `<figure>` or `<figcaption>` elements.
+
+The markup should be similar to this:
+
+```html
+<table>
+    <caption>Monthly savings</caption>
+    <tbody>
+        <tr>
+            <td>
+                Month
+            </td>
+            <td>
+                Savings
+            </td>
+        </tr>
+        <tr>
+            <td>
+                January
+            </td>
+            <td>
+                $100
+            </td>
+        </tr>
+    </tbody>
+</table>
+```
+
+#### Image captions
+
+Image captions should still be `<figcpation>` elements.
diff --git a/packages/ckeditor5-table/tests/plaintableoutput.js b/packages/ckeditor5-table/tests/plaintableoutput.js
new file mode 100644
index 00000000000..8947f1ee7c7
--- /dev/null
+++ b/packages/ckeditor5-table/tests/plaintableoutput.js
@@ -0,0 +1,481 @@
+/**
+ * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/* globals document */
+
+import ClassicTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/classictesteditor';
+import ArticlePluginSet from '@ckeditor/ckeditor5-core/tests/_utils/articlepluginset';
+import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
+import { setData as setModelData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
+import Table from '../src/table';
+import PlainTableOutput from '../src/plaintableoutput';
+import { modelTable } from './_utils/utils';
+import TableCaption from '../src/tablecaption';
+import TableProperties from '../src/tableproperties';
+
+describe( 'PlainTableOutput', () => {
+	let editor, editorElement, model;
+
+	beforeEach( async () => {
+		editorElement = document.createElement( 'div' );
+		document.body.appendChild( editorElement );
+
+		editor = await ClassicTestEditor.create( editorElement, {
+			plugins: [ Paragraph, Table, TableCaption, TableProperties, PlainTableOutput ]
+		} );
+
+		model = editor.model;
+	} );
+
+	afterEach( async () => {
+		editorElement.remove();
+		await editor.destroy();
+	} );
+
+	it( 'requires Table', () => {
+		expect( PlainTableOutput.requires ).to.deep.equal( [ Table ] );
+	} );
+
+	it( 'should have pluginName', () => {
+		expect( PlainTableOutput.pluginName ).to.equal( 'PlainTableOutput' );
+	} );
+
+	describe( 'conversion in data pipeline', () => {
+		describe( 'model to view', () => {
+			it( 'should create tbody section', () => {
+				setModelData( model, modelTable( [
+					[ 'foo' ]
+				] ) );
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<tbody>' +
+							'<tr><td>foo</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should create heading rows', () => {
+				setModelData( model, modelTable( [
+					[ '1', '2' ],
+					[ '3', '4' ],
+					[ '5', '6' ]
+				], { headingRows: 2 } ) );
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<thead>' +
+							'<tr><th>1</th><th>2</th></tr>' +
+							'<tr><th>3</th><th>4</th></tr>' +
+						'</thead>' +
+						'<tbody>' +
+							'<tr><td>5</td><td>6</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should create heading columns', () => {
+				setModelData( model, modelTable( [
+					[ '1', '2' ],
+					[ '3', '4' ],
+					[ '5', '6' ]
+				], { headingColumns: 1 } ) );
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<tbody>' +
+							'<tr><th>1</th><td>2</td></tr>' +
+							'<tr><th>3</th><td>4</td></tr>' +
+							'<tr><th>5</th><td>6</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should create heading rows and columns', () => {
+				setModelData( model, modelTable( [
+					[ '1', '2' ],
+					[ '3', '4' ],
+					[ '5', '6' ]
+				], { headingRows: 1, headingColumns: 1 } ) );
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<thead>' +
+							'<tr><th>1</th><th>2</th></tr>' +
+						'</thead>' +
+						'<tbody>' +
+							'<tr><th>3</th><td>4</td></tr>' +
+							'<tr><th>5</th><td>6</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should work when heading rows number is bigger than number of rows', () => {
+				setModelData( model, modelTable( [
+					[ '1', '2' ],
+					[ '3', '4' ]
+				], { headingRows: 3 } ) );
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<thead>' +
+							'<tr><th>1</th><th>2</th></tr>' +
+							'<tr><th>3</th><th>4</th></tr>' +
+						'</thead>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should create caption element', () => {
+				setModelData( model,
+					'<table>' +
+						'<tableRow>' +
+							'<tableCell><paragraph>1</paragraph></tableCell>' +
+							'<tableCell><paragraph>2</paragraph></tableCell>' +
+						'</tableRow>' +
+						'<caption>Foo</caption>' +
+					'</table>'
+				);
+
+				expect( editor.getData() ).to.equal(
+					'<table>' +
+						'<caption>Foo</caption>' +
+						'<tbody>' +
+							'<tr><td>1</td><td>2</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+			} );
+
+			it( 'should not create caption element without TableCaption plugin', async () => {
+				const testEditor = await ClassicTestEditor.create( editorElement, {
+					plugins: [ Paragraph, Table, PlainTableOutput ]
+				} );
+
+				testEditor.setData(
+					'<table>' +
+						'<caption>Foo</caption>' +
+						'<tbody>' +
+							'<tr><td>1</td><td>2</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+
+				expect( testEditor.getData() ).to.equal(
+					'<table>' +
+						'<tbody>' +
+							'<tr><td>1</td><td>2</td></tr>' +
+						'</tbody>' +
+					'</table>'
+				);
+
+				testEditor.destroy();
+			} );
+
+			it( 'should be overridable', () => {
+				const table = createEmptyTable();
+
+				editor.conversion.for( 'dataDowncast' ).add( dispatcher =>
+					dispatcher.on( 'attribute:tableBorderColor:table', ( evt, data, conversionApi ) => {
+						conversionApi.consumable.consume( data.item, evt.name );
+					}, { priority: 'highest' } ) );
+
+				model.change( writer => writer.setAttribute( 'tableBorderColor', '#f00', table ) );
+
+				assertPlainTableStyle( editor, '' );
+			} );
+
+			describe( 'should create attribute', () => {
+				let table;
+
+				beforeEach( () => {
+					table = createEmptyTable();
+				} );
+
+				it( 'tableBorderStyle', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+
+					assertPlainTableStyle( editor, 'border-style:dotted;' );
+				} );
+
+				it( 'tableBorderColor', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderColor', 'red', table ) );
+
+					assertPlainTableStyle( editor, 'border-color:red;' );
+				} );
+
+				it( 'tableBorderWidth', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '1px', table ) );
+
+					assertPlainTableStyle( editor, 'border-width:1px;' );
+				} );
+
+				it( 'border shorthand', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderColor', 'red', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '1px', table ) );
+
+					assertPlainTableStyle( editor, 'border:1px dotted red;' );
+				} );
+
+				it( 'tableAlignment', () => {
+					model.change( writer => writer.setAttribute( 'tableAlignment', 'right', table ) );
+
+					assertPlainTableStyle( editor, 'float:right;' );
+				} );
+
+				it( 'tableWidth', () => {
+					model.change( writer => writer.setAttribute( 'tableWidth', '500px', table ) );
+
+					assertPlainTableStyle( editor, 'width:500px;' );
+				} );
+
+				it( 'tableHeight', () => {
+					model.change( writer => writer.setAttribute( 'tableHeight', '500px', table ) );
+
+					assertPlainTableStyle( editor, 'height:500px;' );
+				} );
+
+				it( 'tableBackgroundColor', () => {
+					model.change( writer => writer.setAttribute( 'tableBackgroundColor', 'red', table ) );
+
+					assertPlainTableStyle( editor, 'background-color:red;' );
+				} );
+			} );
+
+			describe( 'should remove attribute', () => {
+				let table;
+
+				beforeEach( () => {
+					table = createEmptyTable();
+				} );
+
+				it( 'tableBorderStyle', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderColor', 'red', table ) );
+
+					assertPlainTableStyle( editor, 'border-color:red;border-style:dotted;' );
+
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', '', table ) );
+
+					assertPlainTableStyle( editor, 'border-color:red;' );
+				} );
+
+				it( 'tableBorderColor', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderColor', 'red', table ) );
+
+					assertPlainTableStyle( editor, 'border-color:red;border-style:dotted;' );
+
+					model.change( writer => writer.setAttribute( 'tableBorderColor', '', table ) );
+
+					assertPlainTableStyle( editor, 'border-style:dotted;' );
+				} );
+
+				it( 'tableBorderWidth', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '1px', table ) );
+
+					assertPlainTableStyle( editor, 'border-style:dotted;border-width:1px;' );
+
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '', table ) );
+
+					assertPlainTableStyle( editor, 'border-style:dotted;' );
+				} );
+
+				it( 'from border shorthand', () => {
+					model.change( writer => writer.setAttribute( 'tableBorderStyle', 'dotted', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderColor', 'red', table ) );
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '1px', table ) );
+
+					assertPlainTableStyle( editor, 'border:1px dotted red;' );
+
+					model.change( writer => writer.setAttribute( 'tableBorderWidth', '', table ) );
+
+					assertPlainTableStyle( editor, 'border-color:red;border-style:dotted;' );
+				} );
+
+				it( 'tableAlignment', () => {
+					model.change( writer => writer.setAttribute( 'tableAlignment', 'right', table ) );
+
+					assertPlainTableStyle( editor, 'float:right;' );
+
+					model.change( writer => writer.removeAttribute( 'tableAlignment', table ) );
+
+					assertPlainTableStyle( editor, '' );
+				} );
+
+				it( 'tableWidth', () => {
+					model.change( writer => writer.setAttribute( 'tableWidth', '500px', table ) );
+
+					assertPlainTableStyle( editor, 'width:500px;' );
+
+					model.change( writer => writer.removeAttribute( 'tableWidth', table ) );
+
+					assertPlainTableStyle( editor, '' );
+				} );
+
+				it( 'tableHeight', () => {
+					model.change( writer => writer.setAttribute( 'tableHeight', '500px', table ) );
+
+					assertPlainTableStyle( editor, 'height:500px;' );
+
+					model.change( writer => writer.removeAttribute( 'tableHeight', table ) );
+
+					assertPlainTableStyle( editor, '' );
+				} );
+
+				it( 'tableBackgroundColor', () => {
+					model.change( writer => writer.setAttribute( 'tableBackgroundColor', 'red', table ) );
+
+					assertPlainTableStyle( editor, 'background-color:red;' );
+
+					model.change( writer => writer.removeAttribute( 'tableBackgroundColor', table ) );
+
+					assertPlainTableStyle( editor, '' );
+				} );
+			} );
+
+			describe( 'should not create attribute', () => {
+				let table, testEditor;
+
+				beforeEach( async () => {
+					testEditor = await ClassicTestEditor.create( editorElement, {
+						plugins: [ Paragraph, Table, PlainTableOutput ]
+					} );
+
+					model = testEditor.model;
+					table = createEmptyTable();
+				} );
+
+				afterEach( async () => {
+					await testEditor.destroy();
+				} );
+
+				it( 'tableBorderStyle without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderStyle', 'dotted', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableBorderColor without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderColor', 'red', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableBorderWidth without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderWidth', '1px', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'border shorthand without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderStyle', 'dotted', table )
+					);
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderColor', 'red', table )
+					);
+					model.change( writer =>
+						writer.setAttribute( 'tableBorderWidth', '1px', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableAlignment without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableAlignment', 'right', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableWidth without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableWidth', '500px', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableHeight without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableHeight', '500px', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+
+				it( 'tableBackgroundColor without TableProperties plugin', () => {
+					model.change( writer =>
+						writer.setAttribute( 'tableBackgroundColor', 'red', table )
+					);
+
+					assertPlainTableStyle( testEditor );
+				} );
+			} );
+
+			it( 'should not convert image captions', async () => {
+				const testEditor = await ClassicTestEditor.create( editorElement, {
+					plugins: [ ArticlePluginSet, Table, TableCaption, PlainTableOutput ],
+					image: { toolbar: [ '|' ] }
+				} );
+
+				testEditor.setData(
+					'<figure class="image">' +
+						'<img src="/assets/sample.png" />' +
+						'<figcaption>Caption</figcaption>' +
+					'</figure>'
+				);
+
+				expect( testEditor.getData() ).to.equal(
+					'<figure class="image">' +
+						'<img src="/assets/sample.png">' +
+						'<figcaption>Caption</figcaption>' +
+					'</figure>'
+				);
+
+				testEditor.destroy();
+			} );
+
+			function createEmptyTable() {
+				setModelData(
+					model,
+					'<table>' +
+						'<tableRow>' +
+							'<tableCell>' +
+								'<paragraph>foo</paragraph>' +
+							'</tableCell>' +
+						'</tableRow>' +
+					'</table>'
+				);
+
+				return model.document.getRoot().getNodeByPath( [ 0 ] );
+			}
+
+			function assertPlainTableStyle( editor, tableStyle ) {
+				const tableStyleEntry = tableStyle ? ` style="${ tableStyle }"` : '';
+
+				expect( editor.getData() ).to.equalMarkup(
+					`<table${ tableStyleEntry }>` +
+						'<tbody><tr><td>foo</td></tr></tbody>' +
+					'</table>'
+				);
+			}
+		} );
+	} );
+} );
diff --git a/packages/ckeditor5-table/tests/tablecaption/tablecaptionui.js b/packages/ckeditor5-table/tests/tablecaption/tablecaptionui.js
new file mode 100644
index 00000000000..94acda21d54
--- /dev/null
+++ b/packages/ckeditor5-table/tests/tablecaption/tablecaptionui.js
@@ -0,0 +1,118 @@
+/**
+ * @license Copyright (c) 2003-2022, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/* globals document */
+
+import ClassicTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/classictesteditor';
+import ButtonView from '@ckeditor/ckeditor5-ui/src/button/buttonview';
+import testUtils from '@ckeditor/ckeditor5-core/tests/_utils/utils';
+
+import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
+import TableCaptionEditing from '../../src/tablecaption/tablecaptionediting';
+import TableCaptionUI from '../../src/tablecaption/tablecaptionui';
+import TableEditing from '../../src/tableediting';
+
+describe( 'TableCaptionUI', () => {
+	let editor, tableCaption, editorElement;
+
+	testUtils.createSinonSandbox();
+
+	beforeEach( () => {
+		editorElement = document.createElement( 'div' );
+		document.body.appendChild( editorElement );
+
+		return ClassicTestEditor.create( editorElement, {
+			plugins: [ Paragraph, TableEditing, TableCaptionEditing, TableCaptionUI ]
+		} ).then( newEditor => {
+			editor = newEditor;
+
+			tableCaption = editor.ui.componentFactory.create( 'toggleTableCaption' );
+		} );
+	} );
+
+	afterEach( () => {
+		editorElement.remove();
+		return editor.destroy();
+	} );
+
+	it( 'should register toggleTableCaption feature component', () => {
+		expect( tableCaption ).to.be.instanceOf( ButtonView );
+		expect( tableCaption.icon ).to.match( /<svg / );
+		expect( tableCaption.tooltip ).to.be.true;
+		expect( tableCaption.isToggleable ).to.be.true;
+	} );
+
+	it( 'should execute toggleTableCaption command on model execute event', () => {
+		const executeSpy = testUtils.sinon.spy( editor, 'execute' );
+
+		tableCaption.fire( 'execute' );
+
+		sinon.assert.calledOnce( executeSpy );
+		sinon.assert.calledWithExactly( executeSpy, 'toggleTableCaption', {
+			focusCaptionOnShow: true
+		} );
+	} );
+
+	it( 'should scroll the editing view to the caption on the #execute event if the caption showed up', () => {
+		editor.setData( '<figure class="image"><table><tr><td>foo</td></tr></table></figure>' );
+
+		const executeSpy = testUtils.sinon.spy( editor.editing.view, 'scrollToTheSelection' );
+
+		tableCaption.fire( 'execute' );
+
+		sinon.assert.calledOnce( executeSpy );
+	} );
+
+	it( 'should not scroll the editing view on the #execute event if the caption was hidden', () => {
+		editor.setData( '<figure class="table"><table><tr><td>foo</td></tr></table><figcaption>foo</figcaption></figure>' );
+
+		const executeSpy = testUtils.sinon.spy( editor.editing.view, 'scrollToTheSelection' );
+
+		tableCaption.fire( 'execute' );
+
+		sinon.assert.notCalled( executeSpy );
+	} );
+
+	it( 'should highlight the figcaption element in the view on the #execute event if the caption showed up', () => {
+		editor.setData( '<figure class="table"><table><tr><td>foo</td></tr></table></figure>' );
+
+		tableCaption.fire( 'execute' );
+
+		const figcaptionElement = editor.editing.view.document.getRoot().getChild( 0 ).getChild( 2 );
+
+		expect( figcaptionElement.hasClass( 'table__caption_highlighted' ) ).to.be.true;
+	} );
+
+	it( 'should not scroll or highlight anything if figcaption element is missing', () => {
+		sinon.stub( editor.editing.mapper, 'toViewElement' ).returns( null );
+
+		editor.setData( '<figure class="table"><table><tr><td>foo</td></tr></table></figure>' );
+
+		const executeSpy = testUtils.sinon.spy( editor.editing.view, 'scrollToTheSelection' );
+		const figcaptionElement = editor.editing.view.document.getRoot().getChild( 0 ).getChild( 2 );
+
+		tableCaption.fire( 'execute' );
+
+		sinon.assert.notCalled( executeSpy );
+		expect( figcaptionElement ).to.be.undefined;
+	} );
+
+	it( 'should bind model to toggleTableCaption command', () => {
+		const command = editor.commands.get( 'toggleTableCaption' );
+
+		command.value = true;
+		expect( tableCaption.isOn ).to.be.true;
+	} );
+
+	it( 'should have #label bound to the toggleTableCaption command', () => {
+		const command = editor.commands.get( 'toggleTableCaption' );
+
+		command.value = true;
+		expect( tableCaption.label ).to.equal( 'Toggle caption off' );
+
+		command.value = false;
+		expect( tableCaption.label ).to.equal( 'Toggle caption on' );
+	} );
+} );
diff --git a/packages/ckeditor5-widget/src/widgettoolbarrepository.js b/packages/ckeditor5-widget/src/widgettoolbarrepository.js
index f0461343673..c3885dbd2a3 100644
--- a/packages/ckeditor5-widget/src/widgettoolbarrepository.js
+++ b/packages/ckeditor5-widget/src/widgettoolbarrepository.js
@@ -124,10 +124,18 @@ export default class WidgetToolbarRepository extends Plugin {
 		// Trying to register a toolbar without any item.
 		if ( !items.length ) {
 			/**
-			 * When {@link #register} a new toolbar, you need to provide a non-empty array with
+			 * When {@link #register registering} a new widget toolbar, you need to provide a non-empty array with
 			 * the items that will be inserted into the toolbar.
 			 *
+			 * If you see this error when integrating the editor, you likely forgot to configure one of the widget toolbars.
+			 *
+			 * See for instance:
+			 *
+			 * * {@link module:table/table~TableConfig#contentToolbar `editor.config.table.contentToolbar`}
+			 * * {@link module:image/image~ImageConfig#toolbar `editor.config.image.toolbar`}
+			 *
 			 * @error widget-toolbar-no-items
+			 * @param {String} toolbarId The id of the toolbar that has not been configured correctly.
 			 */
 			logWarning( 'widget-toolbar-no-items', { toolbarId } );