The CanvasRenderingContext2D
.font
property of the Canvas 2D API specifies the current text style to use when drawing text. This string uses the same syntax as the CSS font specifier.
Syntax
ctx.font = value;
Options
Examples
Using a custom font
In this example we use the font
property to specify a custom font weight, size, and family.
HTML
<canvas id="canvas"></canvas>
JavaScript
const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); ctx.font = 'bold 48px serif'; ctx.strokeText('Hello world', 50, 100);
Result
Loading fonts with the CSS Font Loading API
With the help of the FontFace
API, you can explicitly load fonts before using them in a canvas.
let f = new FontFace('test', 'url(x)'); f.load().then(function() { // Ready to use the font in a canvas context });
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'CanvasRenderingContext2D.font' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
font | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 3.5 | IE Full support 9 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
Gecko-specific notes
- In Gecko-based browsers, such as Firefox, a non-standard and deprecated property
ctx.mozTextStyle
is implemented besides this property. Usectx.font
instead. - In Gecko, when setting a system font as the value of a canvas 2D context's
font
(e.g.,menu
), getting the font value used to fail to return the expected font (it returns nothing). This is fixed in Firefox's Quantum/Stylo parallel CSS engine, released in Firefox 57 (bug 1374885).
See also
- The interface defining this property:
CanvasRenderingContext2D