Developer Builds Free YouTube SEO Tool Using Next.js and Groq AI to Rival Paid Platforms

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A developer frustrated with spending one to two hours optimizing YouTube metadata per video, and unwilling to pay up to $50 per month for tools like TubeBuddy or vidIQ, built a free alternative called FreeViralKit. The tool uses Next.js, Groq AI's LPU-based inference engine, and serverless PostgreSQL to generate titles, tags, descriptions, and timestamp chapters in under 400 milliseconds. A dual-tier caching system combining in-memory LRU and Upstash Redis keeps the platform fast and free by minimizing redundant AI API calls. The single-page interface lets creators enter a video topic and instantly receive a full SEO package, including title variations, character-safe tags, and hashtags. FreeViralKit is live at freeviralkit.com, requires no login or signup, and its source code is publicly available on GitHub.

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