For how to access state court rules, see the Pennsylvania Court Rules - State guide.
Pennsylvania Rule of Judicial Administration 103(d)(6)(ii) requires local courts to "publish a copy of the local rule on the website of the court or county in which the adopting court has jurisdiction". Below are a sampling of the local court rules available online. See UJSP Individual County Courts for links to the Pennsylvania County Courts' websites.
Philadelphia County Local Rules
Includes rules for CP-Trial Division-Civil, CP-Trial Division-Criminal, CP-Orphans' Division, CP-Family Division-Domestic Relations, CP-Family Division-Juvenile Dependency, Municipal Court-Civil, Municipal Court-Criminal, Municipal Court-Traffic, and Judicial Administration.
Bucks County Courts: Local Rules
Includes Civil Division Rules & Administration Orders, Magisterial District Judge Rules, Criminal Division Rules and Administrative Orders, Orphans' Court Division Rules and Administrative Orders, and Rules of Judicial Administration.
Chester County: Local Rules of Court
Includes Civil, District Justice, Family, Criminal, Orphans', and Juvenile Rules. Select forms are also available.
Delaware County Local Rules
Includes Civil Rules, Criminal Rules, Orphans Court Local Rules, Common Pleas Administrative Orders, and District Courts Administrative Orders.
Montgomery County: Local Rules
Includes Local Rules of Civil Procedure, Criminal Procedure, Judicial Administration, and Orphans' Court.