i just spent 40 minutes uploading something with my terrible 10kb/s only to get a 413 Payload too large error :/
What's the max size that can be uploaded? so i know how much to compress the gif

I think the problem is the internet, the same shit happens with pixiv, if you have a bad connetion you will need to try 3 o 4 times xD.

Anyways, what's the file's size that you're trying to upload?

For the internet part, that would be True, but it's a 413 error so it's the server that explicitly rejected the request :/

The filesize was 128mo, but i tried again with a 99 mo file and it worked, so the max is probably 100mo

Was the max file size changed? I couldn't upload a file that was only a bit over 30mb...