How ChartDB got its first 100 users
After roughly three weeks of development, the founders launched ChartDB on Hacker News as a "Show HN" post. They prepared the submission carefully and timed the launch to maximize visibility. The post hit the Hacker News front page, delivering thousands of developers to the product in a single day. The key drivers of the Hacker News spike were: (1) the product was fully open-source with zero sign-up required, meaning developers could test it instantly without friction or trust concerns; and (2) the core value prop — paste one SQL query, get a beautiful interactive ERD — was visually striking and immediately obvious, generating the "wow effect" that earns upvotes. Those upvotes pushed it to the homepage, where a large daily audience of developers discovered it organically.