diff --git a/docs/articles/cssspecification.md b/docs/articles/cssspecification.md
index e5e87f680..d00588385 100644
--- a/docs/articles/cssspecification.md
+++ b/docs/articles/cssspecification.md
@@ -1748,6 +1748,23 @@ Sets the text stroke (also known as text outline) width/thickness.
 
 ---
 
+### text-transform
+
+The text-transform CSS property specifies how to capitalize an element's text. It can be used to 
+make text appear in all-uppercase or all-lowercase, or with each word capitalized.
+
+* Applicable to: EE::UI::UITextView (TextView) and any element that holds inside or extends from a
+  TextView, EE::UI::UITooltip (Tooltip).
+* Data Type: [string-list](#string-list-data-type)
+* Value List:
+  * `lowercase`
+  * `uppercase`
+  * `capitalize`
+  * `none`
+* Default value: `none`
+
+---
+
 ### theme
 
 Sets a theme to the element. Changing the theme will not have any effect unless [skin](#skin) is also set.
diff --git a/include/eepp/core/string.hpp b/include/eepp/core/string.hpp
index 15e1675f7..2f4e53b7c 100644
--- a/include/eepp/core/string.hpp
+++ b/include/eepp/core/string.hpp
@@ -165,15 +165,24 @@ class EE_API String {
 	/** Convert the reference of a string into lower case string */
 	static void toLowerInPlace( std::string& str );
 
+	/** Capitalizes the reference of a string */
+	static void capitalizeInPlace( std::string& str );
+
 	/** Convert a string to lower case */
 	static std::string toLower( std::string str );
 
+	/** Catitalize a string */
+	static std::string capitalize( std::string str );
+
 	/** Convert a string to lower case */
 	static String toUpper( const String& str );
 
 	/** Convert a string to lower case */
 	static String toLower( const String& str );
 
+	/** Capitalizes a string */
+	static String capitalize( const String& str );
+
 	/** Convert the string to an std::vector<Uint8> */
 	static std::vector<Uint8> stringToUint8( const std::string& str );
 
@@ -791,6 +800,8 @@ class EE_API String {
 
 	String& toUpper();
 
+	String& capitalize();
+
 	String& escape();
 
 	String& unescape();
diff --git a/include/eepp/graphics/text.hpp b/include/eepp/graphics/text.hpp
index 15ca46b43..db3886ee8 100644
--- a/include/eepp/graphics/text.hpp
+++ b/include/eepp/graphics/text.hpp
@@ -3,6 +3,7 @@
 
 #include <eepp/graphics/font.hpp>
 #include <eepp/graphics/fontstyleconfig.hpp>
+#include <eepp/graphics/texttransform.hpp>
 
 namespace EE { namespace Graphics {
 
@@ -56,6 +57,8 @@ class EE_API Text {
 
 	void setOutlineThickness( Float thickness );
 
+	void transformText( const TextTransform::Value& transform );
+
 	String& getString();
 
 	Font* getFont() const;
diff --git a/include/eepp/graphics/texttransform.hpp b/include/eepp/graphics/texttransform.hpp
new file mode 100644
index 000000000..7fc0dcffd
--- /dev/null
+++ b/include/eepp/graphics/texttransform.hpp
@@ -0,0 +1,40 @@
+#ifndef EE_GRAPHICS_TEXTTRANSFORM_HPP
+#define EE_GRAPHICS_TEXTTRANSFORM_HPP
+
+#include <eepp/core/string.hpp>
+
+namespace EE { namespace Graphics {
+
+class TextTransform {
+  public:
+	enum Value { LowerCase, UpperCase, Capitalize, None };
+
+	static TextTransform::Value fromString( std::string str ) {
+		String::toLowerInPlace( str );
+		if ( str == "lowercase" )
+			return LowerCase;
+		else if ( str == "uppercase" )
+			return UpperCase;
+		else if ( str == "capitalize" )
+			return Capitalize;
+		return None;
+	}
+
+	static std::string toString( const TextTransform::Value& val ) {
+		switch ( val ) {
+			case LowerCase:
+				return "lowercase";
+			case UpperCase:
+				return "uppercase";
+			case Capitalize:
+				return "capitalize";
+			case None:
+				return "none";
+		}
+		return "none";
+	}
+};
+
+}} // namespace EE::Graphics
+
+#endif // EE_GRAPHICS_TEXTTRANSFORM_HPP
diff --git a/include/eepp/ui/css/propertydefinition.hpp b/include/eepp/ui/css/propertydefinition.hpp
index fb75d4784..a2c71028a 100644
--- a/include/eepp/ui/css/propertydefinition.hpp
+++ b/include/eepp/ui/css/propertydefinition.hpp
@@ -63,6 +63,7 @@ enum class PropertyId : Uint32 {
 	Opacity = String::hash( "opacity" ),
 	Cursor = String::hash( "cursor" ),
 	Text = String::hash( "text" ),
+	TextTransform = String::hash( "text-transform" ),
 	Color = String::hash( "color" ),
 	ShadowColor = String::hash( "shadow-color" ),
 	SelectionColor = String::hash( "selection-color" ),
diff --git a/include/eepp/ui/uitextview.hpp b/include/eepp/ui/uitextview.hpp
index e450459b7..14346bcf6 100644
--- a/include/eepp/ui/uitextview.hpp
+++ b/include/eepp/ui/uitextview.hpp
@@ -1,5 +1,5 @@
-#ifndef EE_UICUITEXTBOX_H
-#define EE_UICUITEXTBOX_H
+#ifndef EE_UI_UITEXTVIEW_HPP
+#define EE_UI_UITEXTVIEW_HPP
 
 #include <eepp/graphics/text.hpp>
 #include <eepp/ui/uifontstyleconfig.hpp>
@@ -96,6 +96,10 @@ class EE_API UITextView : public UIWidget {
 
 	const Vector2f& getRealAlignOffset() const;
 
+	const TextTransform::Value& getTextTransform() const;
+
+	void setTextTransform( const TextTransform::Value& textTransform );
+
   protected:
 	Text* mTextCache;
 	String mString;
@@ -114,6 +118,7 @@ class EE_API UITextView : public UIWidget {
 	Int32 mLastSelCurEnd;
 	Int32 mFontLineCenter;
 	bool mSelecting;
+	TextTransform::Value mTextTransform{ TextTransform::None };
 
 	virtual void drawSelection( Text* textCache );
 
@@ -155,6 +160,8 @@ class EE_API UITextView : public UIWidget {
 
 	const Int32& getFontLineCenter();
 
+	void transformText();
+
 	void recalculate();
 
 	void resetSelCache();
diff --git a/include/eepp/ui/uitooltip.hpp b/include/eepp/ui/uitooltip.hpp
index 37879e0cd..543feb425 100644
--- a/include/eepp/ui/uitooltip.hpp
+++ b/include/eepp/ui/uitooltip.hpp
@@ -1,6 +1,7 @@
 #ifndef EE_UICUITOOLTIP_HPP
 #define EE_UICUITOOLTIP_HPP
 
+#include <eepp/graphics/texttransform.hpp>
 #include <eepp/ui/uifontstyleconfig.hpp>
 #include <eepp/ui/uiwidget.hpp>
 
@@ -100,6 +101,10 @@ class EE_API UITooltip : public UIWidget {
 
 	void setDontAutoHideOnMouseMove( bool dontAutoHideOnMouseMove );
 
+	const TextTransform::Value& getTextTransform() const;
+
+	void setTextTransform( const TextTransform::Value& textTransform );
+
   protected:
 	Text* mTextCache;
 	UIFontStyleConfig mStyleConfig;
@@ -107,6 +112,7 @@ class EE_API UITooltip : public UIWidget {
 	Time mTooltipTime;
 	UINode* mTooltipOf;
 	String mStringBuffer;
+	TextTransform::Value mTextTransform{ TextTransform::None };
 	bool mDontAutoHideOnMouseMove{ false };
 
 	virtual void onAlphaChange();
@@ -118,6 +124,8 @@ class EE_API UITooltip : public UIWidget {
 	virtual void autoAlign();
 
 	virtual void autoPadding();
+
+	void transformText();
 };
 
 }} // namespace EE::UI
diff --git a/src/eepp/core/string.cpp b/src/eepp/core/string.cpp
index 2e3e71d0d..9c812ec41 100644
--- a/src/eepp/core/string.cpp
+++ b/src/eepp/core/string.cpp
@@ -520,12 +520,31 @@ void String::toLowerInPlace( std::string& str ) {
 	std::transform( str.begin(), str.end(), str.begin(), (int ( * )( int ))std::tolower );
 }
 
+void String::capitalizeInPlace( std::string& str ) {
+	char last = ' ';
+	for ( std::string::iterator i = str.begin(); i != str.end(); ++i ) {
+		if ( isspace( last ) || last == '.' )
+			*i = toupper( *i );
+		last = *i;
+	}
+}
+
 std::string String::toLower( std::string str ) {
 	for ( std::string::iterator i = str.begin(); i != str.end(); ++i )
 		*i = static_cast<char>( std::tolower( *i ) );
 	return str;
 }
 
+std::string String::capitalize( std::string str ) {
+	char last = ' ';
+	for ( std::string::iterator i = str.begin(); i != str.end(); ++i ) {
+		if ( isspace( last ) || last == '.' )
+			*i = toupper( *i );
+		last = *i;
+	}
+	return str;
+}
+
 String String::toUpper( const String& str ) {
 	String cpy( str );
 	cpy.toUpper();
@@ -538,6 +557,12 @@ String String::toLower( const String& str ) {
 	return cpy;
 }
 
+String String::capitalize( const String& str ) {
+	String cpy( str );
+	cpy.capitalize();
+	return cpy;
+}
+
 String& String::toLower() {
 	for ( StringType::iterator i = mString.begin(); i != mString.end(); ++i )
 		*i = static_cast<Uint32>( std::tolower( *i ) );
@@ -550,6 +575,16 @@ String& String::toUpper() {
 	return *this;
 }
 
+String& String::capitalize() {
+	String::StringBaseType last = ' ';
+	for ( StringType::iterator i = mString.begin(); i != mString.end(); ++i ) {
+		if ( isspace( last ) || last == '.' )
+			*i = toupper( *i );
+		last = *i;
+	}
+	return *this;
+}
+
 String& String::escape() {
 	this->assign( String::escape( *this ) );
 	return *this;
diff --git a/src/eepp/graphics/text.cpp b/src/eepp/graphics/text.cpp
index 0a4da7029..a62e30b9b 100644
--- a/src/eepp/graphics/text.cpp
+++ b/src/eepp/graphics/text.cpp
@@ -250,6 +250,22 @@ void Text::setOutlineThickness( Float thickness ) {
 	}
 }
 
+void Text::transformText( const TextTransform::Value& transform ) {
+	switch ( transform ) {
+		case TextTransform::LowerCase:
+			setString( String::toLower( mString ) );
+			break;
+		case TextTransform::UpperCase:
+			setString( String::toUpper( mString ) );
+			break;
+		case TextTransform::Capitalize:
+			setString( String::capitalize( mString ) );
+			break;
+		default:
+			break;
+	}
+}
+
 String& Text::getString() {
 	return mString;
 }
diff --git a/src/eepp/ui/css/stylesheetspecification.cpp b/src/eepp/ui/css/stylesheetspecification.cpp
index b317a3d34..e5da93438 100644
--- a/src/eepp/ui/css/stylesheetspecification.cpp
+++ b/src/eepp/ui/css/stylesheetspecification.cpp
@@ -190,6 +190,7 @@ void StyleSheetSpecification::registerDefaultProperties() {
 	registerProperty( "opacity", "" ).setType( PropertyType::NumberFloat );
 	registerProperty( "cursor", "arrow" );
 	registerProperty( "text", "" ).setType( PropertyType::String );
+	registerProperty( "text-transform", "" ).setType( PropertyType::String );
 	registerProperty( "color", "" )
 		.setType( PropertyType::Color )
 		.addAlias( "text-color" )
diff --git a/src/eepp/ui/uipushbutton.cpp b/src/eepp/ui/uipushbutton.cpp
index 3f2e0a878..11ab91592 100644
--- a/src/eepp/ui/uipushbutton.cpp
+++ b/src/eepp/ui/uipushbutton.cpp
@@ -463,6 +463,7 @@ std::string UIPushButton::getPropertyString( const PropertyDefinition* propertyD
 		case PropertyId::TextStrokeWidth:
 		case PropertyId::TextStrokeColor:
 		case PropertyId::TextSelection:
+		case PropertyId::TextTransform:
 			return mTextBox->getPropertyString( propertyDef, propertyIndex );
 		default:
 			return UIWidget::getPropertyString( propertyDef, propertyIndex );
@@ -529,6 +530,7 @@ bool UIPushButton::applyProperty( const StyleSheetProperty& attribute ) {
 		case PropertyId::TextStrokeWidth:
 		case PropertyId::TextStrokeColor:
 		case PropertyId::TextSelection:
+		case PropertyId::TextTransform:
 			attributeSet = mTextBox->applyProperty( attribute );
 			break;
 		default:
diff --git a/src/eepp/ui/uitextview.cpp b/src/eepp/ui/uitextview.cpp
index b36f266f9..d19d2e666 100644
--- a/src/eepp/ui/uitextview.cpp
+++ b/src/eepp/ui/uitextview.cpp
@@ -235,6 +235,23 @@ const Vector2f& UITextView::getRealAlignOffset() const {
 	return mRealAlignOffset;
 }
 
+const TextTransform::Value& UITextView::getTextTransform() const {
+	return mTextTransform;
+}
+
+void UITextView::transformText() {
+	mTextCache->setString( mString );
+	mTextCache->transformText( mTextTransform );
+}
+
+void UITextView::setTextTransform( const TextTransform::Value& textTransform ) {
+	if ( textTransform != mTextTransform ) {
+		mTextTransform = textTransform;
+		transformText();
+		recalculate();
+	}
+}
+
 const Color& UITextView::getFontShadowColor() const {
 	return mFontStyleConfig.ShadowColor;
 }
@@ -281,8 +298,11 @@ void UITextView::wrapText( const Uint32& maxWidth ) {
 }
 
 void UITextView::onAutoSize() {
+	bool sizeChanged = false;
+
 	if ( ( mFlags & UI_AUTO_SIZE && 0 == getSize().getWidth() ) ) {
 		setInternalPixelsSize( Sizef( mTextCache->getTextWidth(), mTextCache->getTextHeight() ) );
+		sizeChanged = true;
 	}
 
 	if ( mWidthPolicy == SizePolicy::WrapContent ) {
@@ -293,7 +313,10 @@ void UITextView::onAutoSize() {
 			if ( oldW != totW )
 				setClipType( ClipType::ContentBox );
 		}
-		setInternalPixelsWidth( totW );
+		if ( mSize.x != totW ) {
+			setInternalPixelsWidth( totW );
+			sizeChanged = true;
+		}
 	}
 
 	if ( mHeightPolicy == SizePolicy::WrapContent ) {
@@ -304,8 +327,14 @@ void UITextView::onAutoSize() {
 			if ( oldH != totH )
 				setClipType( ClipType::ContentBox );
 		}
-		setInternalPixelsHeight( totH );
+		if ( mSize.y != totH ) {
+			setInternalPixelsHeight( totH );
+			sizeChanged = true;
+		}
 	}
+
+	if ( sizeChanged )
+		notifyLayoutAttrChange();
 }
 
 void UITextView::alignFix() {
@@ -624,6 +653,9 @@ bool UITextView::applyProperty( const StyleSheetProperty& attribute ) {
 		case PropertyId::Text:
 			setText( getTranslatorString( attribute.asString() ) );
 			break;
+		case PropertyId::TextTransform:
+			setTextTransform( TextTransform::fromString( attribute.asString() ) );
+			break;
 		case PropertyId::Color:
 			setFontColor( attribute.asColor() );
 			break;
@@ -700,6 +732,8 @@ std::string UITextView::getPropertyString( const PropertyDefinition* propertyDef
 	switch ( propertyDef->getPropertyId() ) {
 		case PropertyId::Text:
 			return getText().toUtf8();
+		case PropertyId::TextTransform:
+			return TextTransform::toString( getTextTransform() );
 		case PropertyId::Color:
 			return getFontColor().toHexString();
 		case PropertyId::ShadowColor:
diff --git a/src/eepp/ui/uitooltip.cpp b/src/eepp/ui/uitooltip.cpp
index 0bf7ee03d..c09a38a42 100644
--- a/src/eepp/ui/uitooltip.cpp
+++ b/src/eepp/ui/uitooltip.cpp
@@ -341,6 +341,8 @@ std::string UITooltip::getPropertyString( const PropertyDefinition* propertyDef,
 		return "";
 
 	switch ( propertyDef->getPropertyId() ) {
+		case PropertyId::TextTransform:
+			return TextTransform::toString( getTextTransform() );
 		case PropertyId::Color:
 			return getFontColor().toHexString();
 		case PropertyId::ShadowColor:
@@ -385,11 +387,28 @@ void UITooltip::setDontAutoHideOnMouseMove( bool dontAutoHideOnMouseMove ) {
 	mDontAutoHideOnMouseMove = dontAutoHideOnMouseMove;
 }
 
+void UITooltip::transformText() {
+	mTextCache->transformText( mTextTransform );
+}
+
+const TextTransform::Value& UITooltip::getTextTransform() const {
+	return mTextTransform;
+}
+
+void UITooltip::setTextTransform( const TextTransform::Value& textTransform ) {
+	if ( textTransform != mTextTransform ) {
+		mTextTransform = textTransform;
+		transformText();
+	}
+}
+
 bool UITooltip::applyProperty( const StyleSheetProperty& attribute ) {
 	if ( !checkPropertyDefinition( attribute ) )
 		return false;
 
 	switch ( attribute.getPropertyDefinition()->getPropertyId() ) {
+		case PropertyId::TextTransform:
+			setTextTransform( TextTransform::fromString( attribute.asString() ) );
 		case PropertyId::Color:
 			setFontColor( attribute.asColor() );
 			break;