If you are tied of reading the old “text-only” output of MySQL Explain, then you will enjoy the new MySQL Visual Explain feature of MySQL Workbench (works with MySQL 5.6+).
Before:
mysql> explain select max(DepDelayMinutes), carrier, dayofweek from ontime.ontime_2010 where dayofweek = 7 group by Carrier, dayofweek\G
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: ontime_2010
type: ref
possible_keys: DayOfWeek,dw_carr,covered
key: covered
key_len: 2
ref: const
rows: 1337314
Extra: Using where; Using index
1 row in set (0.00 sec)