Startup cost: $50 - $500

Building browser plugins can be a cost-effective side hustle with varying expenses depending on the tools and services you choose to utilize. Low-end estimate: $50 High-end estimate: $500 Explanation: Costs range from $50 to $500. The minimum cost would cover basic hosting services, domain registration, and potentially some minimal design work. On the other hand, the maximum cost would cater to premium hosting, professional design services, and potentially some marketing expenses to promote the plugin effectively.