The correct version is the second:

Ich will es dir zeigen

When the objects are pronominalized (personal pronouns, not demonstrative ones) the Akkusativobjekt usually goes before the Dativ.

Quelle: http://www.canoo.net/services/OnlineGrammar/Satz/Wortstellung/Stellungsfeld/Mittelfeld/Objekt.html

The correct version is the second:

Ich will es dir zeigen

When the objects are pronominalized (personal pronouns, not demonstrative ones) the Akkusativobjekt usually goes before the Dativ.

Quelle: Link

The correct version is the second:

Ich will es dir zeigen

When the objects are pronominalized the Akkusativobjekt usually goes before the Dativ.

Quelle: http://www.canoo.net/services/OnlineGrammar/Satz/Wortstellung/Stellungsfeld/Mittelfeld/Objekt.html

The correct version is the second:

Ich will es dir zeigen

When the objects are pronominalized (personal pronouns, not demonstrative ones) the Akkusativobjekt usually goes before the Dativ.

Quelle: http://www.canoo.net/services/OnlineGrammar/Satz/Wortstellung/Stellungsfeld/Mittelfeld/Objekt.html