Dev tools · September 26, 2025
lunchSTEM
It’s a free, open-source, non-profit knowledge base for STEM (Science, Technology, Engineering and Mathematics). Think of it as an "awesome repo" on steroids. Ideal for going deep into STEM topics, after ChatGPT/Google gives you an overview. - 60+ GB of resources - 10k+ PDFs - 6k+ subtopics Note: this is our first MVP release. Many improvements are planned — check out our roadmap (inside README.md)
lunchSTEM launched on September 26, 2025 with 7 votes, #2,024 of 8,160 launches that month. The site was still online in September 2026, 1 year on.
What it does
Think of it as Wikipedia for STEM. Instead of making new materials, we organize existing high-quality materials from the internet. Download only the materials you want, on-demand. Built for students, researchers, educators, professionals, and self-learners.
Forget paying to learn. The best place to learn Science, Tech, Engineering and Math in depth, for free. First release. - Freelunch-AI/lunch-stem
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