Browse and display files in a git repo without cloning

Is there a way to browse and display files in a git repo without cloning it first? I can do those in svn using the commands:

svn ls /path/to/repo 
svn cat /path/to/repo/file-in-repo

I can supposedly use git show but doing:

git show /path/to/repo
git show HEAD:/path/to/repo

result to

fatal: Not a git repository

Browse and display files in a git repo without cloning