# Adding my own Twig filters/extensions

**URL:** <https://discourse.slimframework.com/t/adding-my-own-twig-filters-extensions/5501>\
**Category:** Questions\
**Created:** [January 30, 2023, 8:35am UTC](https://discourse.slimframework.com/t/adding-my-own-twig-filters-extensions/5501 "2023-01-30T08:35:32Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![thierryler](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.slimframework.com/thierryler/32/1115_2.png) [@thierryler](https://discourse.slimframework.com/u/thierryler)\
**Post date:** [January 30, 2023, 8:35am UTC](https://discourse.slimframework.com/t/adding-my-own-twig-filters-extensions/5501/1 "2023-01-30T08:35:33Z")

</div>

Hello.

I’ve added Twig to my Slim 3 project with this line:

```auto
$app->add(TwigMiddleware::createFromContainer($app));

```

Then I created an extension for Twig. But I do not figure out how to add/register my custom extension to Twig now. Guest it is really simple…

Any help would be welcome.

Th.