A multi-tool for fiber optic applications is disclosed. In one embodiment, the multi-tool includes a male fiber loopback plug. The multi-tool further includes a fiber coupler having a first end and a second end. The first end of the fiber coupler is able to receive the male fiber loopback plug when the multi-tool is in a closed position. Also, the first end of the fiber coupler is able to receive a loose fiber cable end when the multi-tool is in an open position. The multi-tool also includes an end cap which can be removably coupled to the second end of the fiber coupler. The end cap and the fiber coupler cooperatively provide a protective housing for a fiber cable end when the end cap is removably coupled to the second end of the fiber coupler and the fiber cable end is inserted into the first end of the fiber coupler. Further, the male fiber loopback plug and the fiber coupler collectively make a female fiber loopback plug when the male fiber loopback plug is in a closed position and the end cap is removed from the second end of the fiber coupler. Also, a dust-resistant housing protectively encloses the male fiber loopback plug, the fiber coupler, and the end cap such that the multi-tool is protected from dust intrusion when the male fiber loopback plug is in the closed position and the cap is coupled to the second end of the fiber coupler.