هل من القانوني الاستثمار في تمويل جماعي خارج دولة الإمارات؟

Crowdfunding in the UAE is not illegal. In fact, there are a few well-known platforms that do this.

Your question relates to crowdfunding something outside the country, hence the regulations and legality will be determined on the jurisdiction in which the activity is based.

As you would be potentially funding a project in another country, you are not breaking UAE law in that activity.