The NEMO 3 experiment is devoted to the search for neutrinoless double beta decay, as well as for accurate measurement of two-neutrino double beta decay. The detector has been taking data in the LSM laboratory since 2003 and the latest NEMO 3 results for seven double beta decay isotopes are presented here for both decay modes. The SuperNEMO project aims to extend the NEMO technique to a 100–200 kg isotope experiment with the target half-life sensitivity of 1–2 × 10²⁶ y. The current status of the SuperNEMO R&D programme is described.