AffiliateWP - A powerful affiliate marketing solution for WordPress.
FirstPromoter - Launch your own affiliate and referral program in minutes.
ReferralMagic - Turn your users and customers into referral magnets.
Rewardful - All-in-One Affiliate Management Software for SaaS
Echo - Golang HTTP server framework
Tapfiliate - Affiliate, referral and influencer marketing tracking software for eCommerce & SaaS.