Insight for: Show HN: Free tool to mark points and polygon regions

This tool addresses a niche but common developer need for image annotation, particularly in game development or interactive web content. The browser-only execution and privacy focus are key differentiators, appealing to developers wary of data egress or complex setups. Its utility lies in simplifying asset creation workflows, reducing manual coordinate mapping, and providing immediate, exportable data. The 'hacked together' origin suggests a solution born from direct pain, often a strong indicator of market fit for developer tools. The lack of server-side dependency minimizes operational overhead for users, enhancing its appeal for rapid prototyping and small-scale projects.