Emacs: Highlight Brackets

Alt+x show-paren-mode

highlight matching brackets when your cursor is on a bracket.

Note: it highlights any bracket, including [] {} 『』 【】 〈〉 «» etc. [see Unicode: Brackets, Quotes «»「」【】《》]

Set in Init File

put this in your Emacs Init File:

;; highlight matching paren
(show-paren-mode 1)

Styles of Show Matching Paren

put this in your Emacs Init File:

;; highlight brackets
(setq show-paren-style 'parenthesis)

;; highlight entire expression
(setq show-paren-style 'expression)

;; highlight brackets if visible, else entire expression
(setq show-paren-style 'mixed)

Buy Xah Emacs Tutorial