The T2K experiment is a long-baseline neutrino oscillation project in Japan, consisting of an accelerator and near site at the J-PARC laboratory, and a far detector in the Kamioka mine. Results based on $1.5\times 10^{21}$ protons on target are presented, with precise determinations of the parameters $\theta_{23}$ and $\Delta m^2_{32}$, and a measurement of $\theta_{13}$ complementary to reactor-based measurements. Preliminary indications of the neutrino mass hierarchy and CP violation are shown, and the future of the project is also discussed.