While preparing for a certification exam, I got tired of the same pattern everywhere:Solve 5–10 questions
“Create an account or upgrade to continue”
I just wanted to practice without friction. So instead of complaining, I built CertifyStacks — a completely free, privacy-first mock test platform. certifystacks.netlify.appWhy I Made ItI wanted something simple, fast, and actually useful:Choose your own test size (because not everyone has an hour — sometimes you only have 10–15 minutes)
No accounts, no tracking, no data collection
100% client-side — your progress and answers stay in your browser
Works offline after the first load
Built as a static site, so it can handle a lot of traffic without breaking the bank
How It Was BuiltDay 1 → I built the entire frontend and quiz engine with Google Gemini Pro.
Day 2 → Added multiple test papers.That’s it. No complex backend, no database, no user management. Just clean, vanilla-ish web tech that gets the job done.Even though I couldn’t attend the certification I was preparing for, I decided to release this anyway. I believe it can help students, job seekers, working professionals, and anyone who loves learning and testing their knowledge.What Makes It DifferentPrivacy-first: Nothing leaves your browser
Flexible: Pick 10, 20, or 50 questions depending on your time
Lightweight & Fast: Static hosting on Netlify = blazing fast and scalable
No paywalls: Ever
Of course, like any community-driven or AI-assisted question bank, some questions may become outdated over time or spark healthy debate on answers. I’ll keep improving it gradually based on feedback.My AI-Powered Journey So FarThis is my second meaningful project built with AI assistance:FreeDevUtils – a collection of free developer tools
CertifyStacks – mock tests for certifications and exams
I’m already working on the third one, which I believe tackles one of the bigger challenges developers and learners face today.Final ThoughtSpending just 15 minutes a day solving questions can compound into massive knowledge gains over months. You don’t need fancy platforms or expensive subscriptions to stay consistent.If you’re preparing for any certification, technical interview, or just want to test your knowledge — give CertifyStacks a try and let me know what you think.Feedback, suggestions, or contributions are more than welcome!Try it here:
https://certifystacks.netlify.app
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