Menu
×
   ❮     
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

HTML Tutorial

HTML HOME HTML Introduction HTML Editors HTML Basic HTML Elements HTML Attributes HTML Headings HTML Paragraphs HTML Styles HTML Formatting HTML Quotations HTML Comments HTML Colors HTML CSS HTML Links HTML Images HTML Favicon HTML Page Title HTML Tables HTML Lists HTML Block & Inline HTML Div HTML Classes HTML Id HTML Iframes HTML JavaScript HTML File Paths HTML Head HTML Layout HTML Responsive HTML Computercode HTML Semantics HTML Style Guide HTML Entities HTML Symbols HTML Emojis HTML Charsets HTML URL Encode HTML vs. XHTML

HTML Forms

HTML Forms HTML Form Attributes HTML Form Elements HTML Input Types HTML Input Attributes HTML Input Form Attributes

HTML Graphics

HTML Canvas HTML SVG

HTML Media

HTML Media HTML Video HTML Audio HTML Plug-ins HTML YouTube

HTML APIs

HTML Geolocation HTML Drag/Drop HTML Web Storage HTML Web Workers HTML SSE

HTML Examples

HTML Examples HTML Editor HTML Quiz HTML Exercises HTML Website HTML Bootcamp HTML Certificate HTML Summary HTML Accessibility

HTML References

HTML Tag List HTML Attributes HTML Global Attributes HTML Browser Support HTML Events HTML Colors HTML Canvas HTML Audio/Video HTML Doctypes HTML Character Sets HTML URL Encode HTML Lang Codes HTTP Messages HTTP Methods PX to EM Converter Keyboard Shortcuts

HTML Canvas Graphics


Your browser does not support the <canvas> element.

The HTML <canvas> element is used to draw graphics on a web page.

The graphic to the left is created with <canvas>. It shows four elements: a red rectangle, a gradient rectangle, a multicolor rectangle, and a multicolor text.


What is HTML Canvas?

The HTML <canvas> element is used to draw graphics, on the fly, via JavaScript.

The <canvas> element is only a container for graphics. You must use JavaScript to actually draw the graphics.

Canvas has several methods for drawing paths, boxes, circles, text, and adding images.

Canvas is supported by all major browsers.


Canvas Examples

A canvas is a rectangular area on an HTML page. By default, a canvas has no border and no content.

The markup looks like this:

<canvas id="myCanvas" width="200" height="100"></canvas>

Note: Always specify an id attribute (to be referred to in a script), and a width and height attribute to define the size of the canvas. To add a border, use the style attribute.

Here is an example of a basic, empty canvas:

Your browser does not support the canvas element.

Example

<canvas id="myCanvas" width="200" height="100" style="border:1px solid #000000;">
</canvas>
Try it Yourself »


Add a JavaScript

After creating the rectangular canvas area, you must add a JavaScript to do the drawing.

Here are some examples:

Draw a Line

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.moveTo(0, 0);
ctx.lineTo(200, 100);
ctx.stroke();
</script>
Try it Yourself »

Draw a Circle

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.beginPath();
ctx.arc(95, 50, 40, 0, 2 * Math.PI);
ctx.stroke();
</script>
Try it Yourself »

Draw a Text

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.font = "30px Arial";
ctx.fillText("Hello World", 10, 50);
</script>
Try it Yourself »

Stroke Text

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.font = "30px Arial";
ctx.strokeText("Hello World", 10, 50);
</script>
Try it Yourself »

Draw Linear Gradient

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");

// Create gradient
var grd = ctx.createLinearGradient(0, 0, 200, 0);
grd.addColorStop(0, "red");
grd.addColorStop(1, "white");

// Fill with gradient
ctx.fillStyle = grd;
ctx.fillRect(10, 10, 150, 80);
</script>
Try it Yourself »

Draw Circular Gradient

Your browser does not support the canvas element

Example

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");

// Create gradient
var grd = ctx.createRadialGradient(75, 50, 5, 90, 60, 100);
grd.addColorStop(0, "red");
grd.addColorStop(1, "white");

// Fill with gradient
ctx.fillStyle = grd;
ctx.fillRect(10, 10, 150, 80);
</script>
Try it Yourself »

Draw Image

<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
var img = document.getElementById("scream");
ctx.drawImage(img, 10, 10);
</script>
Try it Yourself »

HTML Canvas Tutorial

To learn more about <canvas>, please read our HTML Canvas Tutorial.