Any suggestions for a link UNshortener?

I understand this is not exactly what you’re asking for, but if you have access to a terminal, you can “unshorten” a link with:

curl --head -L https://example.com/short | grep: location

Very much this.

It’s a little complicated. Sometimes the curl command further up works, but sometimes the redirection is done in an html meta tag or even with javascript. I have a messy python script that has a bunch of site specific code to bypass redirects and clean up tracking links. I can’t post it in its present condition (it has some private info embedded) but I’ve been wanting to clean it up and post it sometime.

I’ve not used it, but your question got me wondering so I searched and found the following site which tries to navigate various redirect methods to find the final destination. I’d be curious to know how well it works.

https://www.redirect-checker.org/

It is not enough for the increasingly common share.google links for example, and i bet there’s more like this

I was hoping for a self-hosted resource, not a remote API, since this is the Selfhosted community

Whoops, my mistake. I did not check where this was posted. Sorry about that.

I developed this script for creating permanent/static archives of social media exports, so it’s not a full solution - not a web service, expects file inputs, uses a probably incomplete list of shorteners to avoid pulling real pages - but it along with the shorteners.txt file in the same repository, iterating to find a domain not on the list, might at least inspire a solution, if it’s not good for your specific cases.

I’m sure there are better alternatives (going to look at some of the other suggestions here), but I usually just drop the link into https://www.expandurl.net/