=== 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/?key=https%3A%2F%2Fdevelopers.google.com%2Fs%2Fresults%3Fq%3Dabc&text=%E8%B4%B5%E9%98%B3%E7%94%A8%E5%8F%8B%E7%BD%91%E7%BB%9C%E7%A7%91%E6%8A%80%E8%82%A1%E4%BB%BD%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%E4%BA%86%E8%A7%A3%E2%97%8BEmail%3A306007081%40qq.com%F0%9F%92%9B%E7%94%A8%E5%8F%8Bt3%E7%94%A8%E5%8F%8B%E9%80%9A%E5%A6%82%E4%BD%95%E8%AE%B0%E8%B4%A6%F0%9F%92%96%E5%AE%89%E5%8D%93%E6%89%8B%E6%9C%BA%E8%BD%AF%E4%BB%B6%E5%BC%80%E5%8F%91%E5%9F%B9%E8%AE%AD%F0%9F%91%B6%F0%9F%8F%BB%E5%A6%82%E4%BD%95%E5%8D%B8%E8%BD%BD%E4%BC%98%E5%8C%96%E5%A4%A7%E5%B8%88%E8%BD%AF%E4%BB%B6%F0%9F%92%8B%E7%94%9F%E6%80%81%E6%9E%84%E5%BB%BA%EF%BC%8C%E5%85%B1%E8%B5%A2%E6%9C%AA%E6%9D%A5%EF%BC%8C%E8%B4%B5%E5%B7%9E%E7%95%85%E6%8D%B7%E9%80%9A%E6%90%BA%E6%89%8B%E8%A1%8C%E4%B8%9A%E4%BC%99%E4%BC%B4%EF%BC%8C%E6%9E%84%E5%BB%BA%E5%BC%80%E6%94%BE%E7%94%9F%E6%80%81%E4%BD%93%E7%B3%BB%EF%BC%8C%E8%B5%84%E6%BA%90%E5%85%B1%E4%BA%AB%EF%BC%8C%E4%BA%92%E5%88%A9%E5%85%B1%E8%B5%A2%EF%BC%8C%E4%B8%BA%E4%BC%81%E4%B8%9A%E6%8F%90%E4%BE%9B%E6%9B%B4%E5%A4%9A%E5%A2%9E%E5%80%BC%E6%9C%8D%E5%8A%A1%EF%BC%8C%E5%85%B1%E5%90%8C%E6%8E%A2%E7%B4%A2%E6%97%A0%E9%99%90%E5%8F%AF%E8%83%BD%E3%80%82%F0%9F%90%A9%E7%AB%99%E5%86%85%E6%90%9C%E7%B4%A2%3Fquery%3DYYRJ%3Fhupl%3Fsharex%3Fhupl%3Fsharex

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/?key=https%3A%2F%2Fdevelopers.google.com%2Fs%2Fresults%3Fq%3Dabc&text=%E8%B4%B5%E9%98%B3%E7%94%A8%E5%8F%8B%E7%BD%91%E7%BB%9C%E7%A7%91%E6%8A%80%E8%82%A1%E4%BB%BD%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%E4%BA%86%E8%A7%A3%E2%97%8BEmail%3A306007081%40qq.com%F0%9F%92%9B%E7%94%A8%E5%8F%8Bt3%E7%94%A8%E5%8F%8B%E9%80%9A%E5%A6%82%E4%BD%95%E8%AE%B0%E8%B4%A6%F0%9F%92%96%E5%AE%89%E5%8D%93%E6%89%8B%E6%9C%BA%E8%BD%AF%E4%BB%B6%E5%BC%80%E5%8F%91%E5%9F%B9%E8%AE%AD%F0%9F%91%B6%F0%9F%8F%BB%E5%A6%82%E4%BD%95%E5%8D%B8%E8%BD%BD%E4%BC%98%E5%8C%96%E5%A4%A7%E5%B8%88%E8%BD%AF%E4%BB%B6%F0%9F%92%8B%E7%94%9F%E6%80%81%E6%9E%84%E5%BB%BA%EF%BC%8C%E5%85%B1%E8%B5%A2%E6%9C%AA%E6%9D%A5%EF%BC%8C%E8%B4%B5%E5%B7%9E%E7%95%85%E6%8D%B7%E9%80%9A%E6%90%BA%E6%89%8B%E8%A1%8C%E4%B8%9A%E4%BC%99%E4%BC%B4%EF%BC%8C%E6%9E%84%E5%BB%BA%E5%BC%80%E6%94%BE%E7%94%9F%E6%80%81%E4%BD%93%E7%B3%BB%EF%BC%8C%E8%B5%84%E6%BA%90%E5%85%B1%E4%BA%AB%EF%BC%8C%E4%BA%92%E5%88%A9%E5%85%B1%E8%B5%A2%EF%BC%8C%E4%B8%BA%E4%BC%81%E4%B8%9A%E6%8F%90%E4%BE%9B%E6%9B%B4%E5%A4%9A%E5%A2%9E%E5%80%BC%E6%9C%8D%E5%8A%A1%EF%BC%8C%E5%85%B1%E5%90%8C%E6%8E%A2%E7%B4%A2%E6%97%A0%E9%99%90%E5%8F%AF%E8%83%BD%E3%80%82%F0%9F%90%A9%E7%AB%99%E5%86%85%E6%90%9C%E7%B4%A2%3Fquery%3DYYRJ%3Fhupl%3Fsharex%3Fhupl%3Fsharex

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