[regecks]

For text I like http://termbin.com. It just accepts text on port 9999, no HTTP required.

[geocrasher]

Just text, you say?

https://termbin.com/0nlm

[ducktective]

`curl -s "https://termbin.com/0nlm" | base64 --decode | file -`

I guessed but how could I have identified the string as a base64 hash?

[geocrasher]

I could have created a header of some kind to identify it but I figured it would be more fun in this case to give people some ducktective work to do ;-)