Got tired of every "free" AI tool hiding behind login walls and 3-uses-a-day limits, so I built my own set and made them actually free — no accounts, no paywalls. They run on open-source models (Nemotron, Gemma) via OpenRouter, with a Next.js frontend on a small VPS. The set: text summarizer (20k chars), AI-text humanizer, paraphraser, grammar fixer, hook generator, SEO meta generator, Instagram caption writer, YouTube summarizer, and a "which AI should I use?" quiz. Hub:...