Need simple IPFS upload app

What is easiest way to code application which will display upload form, uploads file sent by browser to IPFS and display hash? No pinning or user login needed.

Is there something open source which is doing something similar? I need it for uploads from mobile phones.

Well since IPFS doesn’t hosts your files (it shares them). That can’t work.
Even forgeting the fact that browsers have a really limited dial set and that they can’t run the DHT you could run a node in the browser but that would go away once the user close the page.

I would lower the requierements to accept some pinning servers but if you really don’t want you can ask users to run IPFS and use their local nodes.

I need something like https://globalupload.io/ but what works.