Chlorine can be removed by dechlorinators which are available in the market. Get a good dechlorinator. The dechlorinators convert the chlorine into harmless chloride ions.
Chlorine is volatile so leaving your water in a bucket overnight can also remove it. Put the water in a bucket or container with a large water-to-air surface.
Some water utilities have switched from to Chloramine. Chloramine is a compound containing chlorine and ammonia. Chloramine stays in the water for longer periods. It cannot be removed naturally by keeping water overnight. Hence, ensure that your dechlorinator can also remove chloramine.