Depends on the host software you use, some offer the feature, most do not. Its actually really hard to restart automatically as a) earlier in the gcode could be setup/modal commands that can be missed from "just start at line xxxx" b) The machine may have lost position c) the gantry can go out of square if it got stuck before the bit broke d) the actual chance of a recovery is quite small OpenBuildsCONTROL do not offer an automated way to restart, but as you build up skill, the GCODE editor can help you do it (keep modals/headers, delete lines already processed, make sure G0 moves to start position wont hit anything etc... It is quite advanced though so approach with caution unless you can read gcode and understand modal commands, work coordinates, etc)
