Marketing through free tools is powerful. And Auth0 implemented it beautifully.
In an old article from Gonto I read about some free tools that Auth0 created years ago.
And those tools are still generating traffic and leads today.
And they are helpful to developers and make the Auht0 brand even more appreciated by the community.
One of those tools is JSON Web Token Debugger.
So how this works for them is this:
Now, Gonto suggested that is important to do it on a separate domain to make it less promotional.
I am not sold on that especially when I know there are companies like @VEED.IO that build "SEO tool clusters" in the /tools/ subfolder of their page and crush it in search.
But either way, if you can solve a real problem your target devs have, no matter how small, you should be able to get some developer love (and $) from the value you created.