Creating viral marketing campaigns that spread across social media takes the right tools to make it happen. These platforms help you build campaigns that encourage people to share your content with their friends and followers. They work by adding incentives like contests, giveaways, and referral programs that motivate users to spread the word about your brand. When done right, viral marketing can quickly expand your reach and bring in new customers without spending a fortune on ads. Here are three tools that make it easier to create campaigns that people actually want to share.

• UpViral
• Gleam
• Viral Loops