Recommended · for some experience
Invention Release! Carlson LV Capacitor Leakage Tester.
Why people recommend it
Mr Carlson presents his own low voltage capacitor leakage tester, admired by people restoring old equipment who want to check capacitors out of circuit.
Watch for: Schematics are behind his Patreon; you need to build the tester yourself
In their words
Mr. Carlson has created a nice capacitor leakage detector.
rdtsc on electronics.stackexchange.com, Oct 2021. CC BY-SA.