MySQLfrm - Using multiple frm files
You can use online service https://recovery.twindb.com/ (I'm the author). Basically, it's a wed interface to mysqlfrm.

To restore structure from multiple frm files you can run this

find /path/to/frm_files -name '*.frm' | \
xargs mysqlfrm --basedir /usr --port 3333


In /usr mysqlfrm should find mysqld (it starts it to read the frm).