Trackers are useful third-party tools which can help a player remember what they have already completed and where to go next. Some offer additional features such as information searching and reference, maps, and customization.

Below are some recommended trackers:

EmoTracker: supports numerous games and different formats. Provides color-coded character gating information, notes, and autotracker support - Created by Eatitup_86 and Anguirel
EmoTracker AutoTracker Setup (Snes9x-rr and Bizhawk) - Linked by Javinat0r
Illumina tracker: provides character gating information, several formats, boss and rage information, notes, and other features - Created by Drewlith
Browser-based tracker - Created by Rumbleminze