# What is this file? Demo · Insights · Dscvry

> Drop any file here and a 39 KB WebAssembly check reads a few kilobytes of its structure and says what it really is, and whether it is locked, renamed or cut off. The file is never uploaded.

Source: https://dscvryai.com/insights/what-is-this-file/demo/

1. [Home](https://dscvryai.com/)
2. [Insights](https://dscvryai.com/#insights)
3. [What is this file?](https://dscvryai.com/insights/what-is-this-file/)
4. Demo

# What is this file? Demo

Drop any file here and a 39 KB WebAssembly check reads a few kilobytes of its structure and says what it really is, and whether it is locked, renamed or cut off. The file is never uploaded.

With JavaScript on, you can drop any file here and the check runs on it in your browser. The file is never uploaded.

[Read the write-up →](https://dscvryai.com/insights/what-is-this-file/)