This API allows calculating hashes for publicly available content... SHA1mone!
This allows you to show a badge with checksum for online content.
When calculating the hash for the Google favicon (), which is linked at:

<img src=""/>

Unless Google changes the favicon, the expected response is:

Badge calculated by the API:

The API will be size-restricted, for an unlimited-cross-platform experience install the command-line tool:

Alternative: commandline
Install Michael checksum on your machine:
dotnet tool install -g michaelchecksum.console
To calculate a checkum of a local file:
To calculate a checkum of a remote: