QCD results at LHC

A small selection of the most recent QCD results of the ATLAS and CMS experiments will be presented. The results use data collected during the 2010 and 2011 LHC running, at a center of mass energy of 7 and 2.76 TeV, corresponding to a total integrated luminosity of 5 $fb^{-1}$. First a review of the reconstruction and calibration of jets at both experiments will be presented. Then, the inclusive jet and dijet cross section measurements from both experiments will be discussed, and the measurement of the strong coupling constant from the CMS experiment will be shown. The jet mass and substructure measurements from both experiment will follow, as well as the $k_T$ splitting scales measurement from the ATLAS experiment. Finally, the dijet angular distributions will be presented as a QCD measurement but also as a search for new physics.