@Paarsec Because PixelFed and Mastodon are both services part of the #fediverse, your posts are already kinda here, in a way. Just search for your PixelFed account in the Mastodon search box.
For example, here's my PixelFed account: @chartier@pixelfed.social
It's PixelFed. But you can view it here.
Want to really blow your mind? Go to your PixelFed instance and search for your Mastodon account, using the dual @ format, like:
@Paarsec