The Free Stack Playbook: Build & Scale Products at 0$ /month

Hi Product Hunt! I'm Olive, and I'm excited to share The Free Stack Playbook (2026 Edition). I created this because I kept seeing founders, product managers, and developers spending money on software they didn't actually need. Early-stage startups are often told they need dozens of paid tools before they can build a great product. But after researching, testing, and using these tools across real projects, I discovered that many expensive platforms have excellent free or open-source alternatives that cover most of what early teams actually need. That inspired this playbook. Inside you'll find: 🚀 50+ free tools across product management, development, analytics, design, AI, deployment, marketing, automation, and more. 🧩 Complete startup stacks you can use from idea to production. 📖 Practical templates for PRDs, roadmaps, sprint planning, bug reports, and KPIs. 🤖 A bonus guide showing how to build your own AI assistant using your company's documents. My goal wasn't to create another list of tools. I wanted to build a practical reference that helps people ship products faster while keeping costs low. I'd genuinely love your feedback. A question for everyone: 👉 What's the one software subscription you think every early-stage startup pays for too early? Have you found a free alternative that surprised you? I'll be here throughout the day to answer questions, discuss tools, and learn from the community. Thank you for checking it out! 🙌