The high energy scale of the LHC and the large associated Lorentz boost of hadronically decaying massive particles has resulted in the creation of a new approach to jet identification. Jet substructure, or the use of angular and energy distributions within jets, has proven to be a powerful means of differentiating between hadronic decays of massive particles and QCD multijets production. This rapidly evolving field is now a key part of the ATLAS and CMS physics programs, and is frequently used to identify W/Z bosons, H bosons, top quarks, and more. In particular, jet substructure techniques have become a critical tool in the search for new physics, both extending past results into new regimes and opening up new possibilities and new analysis strategies. I will present an overview of the many uses of jet substructure as applied to the search for new physics by both the ATLAS and CMS collaborations, as well as a brief outlook into how jet substructure techniques are being refined for the next set of search results.