definition

Growth hacking is a marketing and product development approach focused on fast experimentation to identify the most efficient ways to grow a business.

The term was coined in 2010 by Sean Ellis, who used it to describe a new breed of marketers in startups and professionals who blend creativity, data analysis, and product thinking to achieve fast, scalable growth with limited resources.

Unlike traditional marketing, which often relies on established campaigns and larger budgets, growth hacking emphasizes agility and testing.

Tactics can include viral referral programs, creative use of social media, product-led growth features (like onboarding flows that encourage sharing), or leveraging data to optimize user acquisition and retention.

A growth hacker’s success is measured less by vanity metrics like brand awareness and more by core drivers of business value: users, revenue, and engagement.

For example, Dropbox famously used a referral program that rewarded both the referrer and the new user with extra storage space. This simple strategy turned customers into advocates and helped the company scale exponentially without massive ad spend.

Today, growth hacking is not limited to early-stage startups. Larger companies also adopt these strategies to fuel product adoption or enter new markets.

While some critics argue the term is overused, the principle remains relevant: it’s about blending product, marketing, and analytics to unlock sustainable, creative, and cost-effective growth.