=== How To Upload ===
You can upload files to this site via a simple HTTP POST, e.g. using curl:
curl -F "file=@/path/to/your/file.jpg" https://x0.at/?find=http%3A%2F%2Fwww.so.com%2Fs%3Fq%3D%E7%94%A8%E5%8F%8B%E8%B4%B5%E5%B7%9E%E5%88%86%E5%85%AC%E5%8F%B8%E4%BA%86%E8%A7%A3%F0%9F%94%A5%E7%94%B5%E8%AF%9D%3A13608572210%E2%9B%AA%EF%B8%8F%E7%94%B5%E5%AD%90%E5%8F%91%E7%A5%A8%E7%AE%A1%E7%90%86+app%F0%9F%8D%84%E7%B3%BB%E7%BB%9F%E8%BD%AF%E4%BB%B6%E5%AE%9A%E5%88%B6%E5%85%AC%E5%8F%B8%F0%9F%A6%8E%E4%BB%80%E4%B9%88%E8%BD%AF%E4%BB%B6%E5%8F%AF%E4%BB%A5%E6%89%BE%E5%88%B0%F0%9F%8F%A9%E8%B4%B5%E5%B7%9E%E4%BC%81%E4%B8%9A%E6%96%B0%E5%BC%95%E6%93%8E%EF%BC%8C%E7%94%A8%E5%8F%8B%E8%BD%AF%E4%BB%B6%E9%A9%B1%E5%8A%A8%E6%9C%AA%E6%9D%A5%EF%BC%8C%E5%9C%A8%E5%A4%9A%E5%BD%A9%E8%B4%B5%E5%B7%9E%EF%BC%8C%E7%94%A8%E5%8F%8B%E8%BD%AF%E4%BB%B6%E6%98%AF%E4%BC%81%E4%B8%9A%E6%95%B0%E5%AD%97%E5%8C%96%E8%BD%AC%E5%9E%8B%E7%9A%84%E9%A6%96%E9%80%89%EF%BC%8C%E4%BB%A5%E6%99%BA%E8%83%BD%E8%B4%A2%E5%8A%A1%E4%B8%BA%E6%A0%B8%E5%BF%83%EF%BC%8C%E6%89%93%E9%80%A0%E9%AB%98%E6%95%88%E7%AE%A1%E7%90%86%E6%96%B0%E7%94%9F%E6%80%81%EF%BC%8C%E5%8A%A9%E5%8A%9B%E4%BC%81%E4%B8%9A%E8%BD%BB%E8%A3%85%E4%B8%8A%E9%98%B5%EF%BC%8C%E8%BF%88%E5%90%91%E8%BE%89%E7%85%8C%E3%80%82%F0%9F%A6%8Dsgd%E4%BC%98%E5%8C%96%E5%99%A8%3Fkwd%3DYYRJ

Or if you want to pipe to curl *and* have a file extension, add a "filename":
echo "hello" | curl -F "file=@-;filename=.txt" https://x0.at/?find=http%3A%2F%2Fwww.so.com%2Fs%3Fq%3D%E7%94%A8%E5%8F%8B%E8%B4%B5%E5%B7%9E%E5%88%86%E5%85%AC%E5%8F%B8%E4%BA%86%E8%A7%A3%F0%9F%94%A5%E7%94%B5%E8%AF%9D%3A13608572210%E2%9B%AA%EF%B8%8F%E7%94%B5%E5%AD%90%E5%8F%91%E7%A5%A8%E7%AE%A1%E7%90%86+app%F0%9F%8D%84%E7%B3%BB%E7%BB%9F%E8%BD%AF%E4%BB%B6%E5%AE%9A%E5%88%B6%E5%85%AC%E5%8F%B8%F0%9F%A6%8E%E4%BB%80%E4%B9%88%E8%BD%AF%E4%BB%B6%E5%8F%AF%E4%BB%A5%E6%89%BE%E5%88%B0%F0%9F%8F%A9%E8%B4%B5%E5%B7%9E%E4%BC%81%E4%B8%9A%E6%96%B0%E5%BC%95%E6%93%8E%EF%BC%8C%E7%94%A8%E5%8F%8B%E8%BD%AF%E4%BB%B6%E9%A9%B1%E5%8A%A8%E6%9C%AA%E6%9D%A5%EF%BC%8C%E5%9C%A8%E5%A4%9A%E5%BD%A9%E8%B4%B5%E5%B7%9E%EF%BC%8C%E7%94%A8%E5%8F%8B%E8%BD%AF%E4%BB%B6%E6%98%AF%E4%BC%81%E4%B8%9A%E6%95%B0%E5%AD%97%E5%8C%96%E8%BD%AC%E5%9E%8B%E7%9A%84%E9%A6%96%E9%80%89%EF%BC%8C%E4%BB%A5%E6%99%BA%E8%83%BD%E8%B4%A2%E5%8A%A1%E4%B8%BA%E6%A0%B8%E5%BF%83%EF%BC%8C%E6%89%93%E9%80%A0%E9%AB%98%E6%95%88%E7%AE%A1%E7%90%86%E6%96%B0%E7%94%9F%E6%80%81%EF%BC%8C%E5%8A%A9%E5%8A%9B%E4%BC%81%E4%B8%9A%E8%BD%BB%E8%A3%85%E4%B8%8A%E9%98%B5%EF%BC%8C%E8%BF%88%E5%90%91%E8%BE%89%E7%85%8C%E3%80%82%F0%9F%A6%8Dsgd%E4%BC%98%E5%8C%96%E5%99%A8%3Fkwd%3DYYRJ

Or if you want to upload using netcat:
echo "hello" | nc x0.at 9999

Or if you want to upload via SSH (yes, really):
echo "hello" | ssh x0.at

To use a longer file ID (up to 24 characters), add -F id_length=<number>

On Windows, you can use ShareX and import this custom uploader.
On Android, you can use an app called Hupl with this uploader.


Or simply choose a file and click "Upload" below:
(Hint: If you're lucky, your browser may support drag-and-drop onto the file 
selection input.)

 === File Sizes etc. ===
The maximum allowed file size is 222 MiB.

Files are kept for a minimum of 3, and a maximum of 100 Days.

How long a file is kept depends on its size. Larger files are deleted earlier 
than small ones. This relation is non-linear and skewed in favour of small 
files.

The exact formula for determining the maximum age for a file is:

MIN_AGE + (MAX_AGE - MIN_AGE) * (1-(FILE_SIZE/MAX_SIZE))^2


 === Source ===
The PHP script used to provide this service is open source and available on 
GitHub


 === Contact ===
If you want to report abuse of this service, or have any other inquiries, 
please write an email to root@x0.at

 === Support ===
Paypal me a pizza
Bitcoin me a beverage at BC1QTTYDK6A9T2H8L2M74J32FEMY84UUW9MD7K3W5U