qtmib is an easy-to-use SNMP MIB Browser based on QT4 library. It is build as
a front-end for net-snmp, and it allows the user to query any SNMP-enabled
device. It implements SNMPv1 and SNMPv2c, and it is released under GPL v2
license.

qtmib supports out of the box a large number of MIBs. We are currently
tracking netdisco MIB archive. You can also install private MIBs by dropping
them in ~/.config/qtmib/mibs directory.