Many of the former suburban tram lines became parts of the Stockholm Metro between the years 1950-1964.

In September 1967, in conjunction with the Swedish switch from left-hand to right-hand traffic, the last parts of the once large inner city street running tram network were closed.

What little remained of the former network following 1967 were isolated suburban feeder lines to the Metro.

However, in 1991 a 3 km (1.9 mi) long heritage line opened to the recreational area Djurgården; and in 2000, the non-radial half-circle line Tvärbanan opened with articulated low floor vehicles connecting an inner ring of Metro and commuter rail stations just outside the inner city proper, with subsequent extensions in 2003 and 2014; and in 2010 the heritage line was extended and converted to a regular service line.

As of January 2023, the following lines provide service in the Stockholm metropolitan area:[1] While all tramlines run on standard gauge track and use the same overhead voltage (750 V DC), the cab signalling system for Lidingöbanan is different from the one for Tvärbanan, making rolling stock incompatible.