Product Launch Checklist is a free, browser-based interactive checklist for indie makers and small teams shipping software. It covers 43 items across 8 phases from "before you launch" to the first month after launch. You select your launch type (SaaS, mobile app, AI tool, browser extension, open source project, or developer tool) and the list adapts by dropping irrelevant items. Each item explains why it matters and when you can skip it. Progress is saved locally in your browser (no account or email required). You can share your progress via a unique link, export as Markdown, or use the integrated AI assistant links (ChatGPT, Claude, Perplexity, Google AI) to get walkthroughs. The checklist also links to related resources like SubmitMap for directory submission and separate checklists for website, app, and SaaS launches.