A curated collection of all country flags in SVG — plus the CSS for easier integration. See the demo.

You can either download the whole project as is or install it via NPM:

$ npm install flag-icon-css

For using the flags inline with text add the classes .flag-icon and .flag-icon-xx (where xx is the ISO 3166-1-alpha-2 code of a country) to an empty <span>. If you want to have a squared version flag then add the class flag-icon-squared as well. Example:

<span class="flag-icon flag-icon-gr"></span>
<span class="flag-icon flag-icon-gr flag-icon-squared"></span>

You could also apply this to any element, but in that case you'll have to use the flag-icon-background instead of flag-icon and you're set. This will add the correct background with the following CSS properties:

background-size: contain;
background-position: 50%;
background-repeat: no-repeat;

Which means that the flag is just going to appear in the middle of an element, so you will have to set manually the correct size of 4 by 3 ratio or if it's squared add also the flag-icon-squared class.

Run the yarn to install the dependencies after cloning the project and you'll be able to:

To build *.less files

$ yarn build

To serve it on localhost:8000

$ yarn start

To have only specific countries in the css file, remove the ones that you don't need from the flag-icons-list.less file and build it again.

This project wouldn't exist without the awesome and now deleted collection of SVG flags by koppi.