The latest articles on DEV Community by Ian Byun (@realpickai). https://dev.to/realpickai https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4104703%2F3a5b1db8-89bb-4659-8d89-3a0ba75f5414.png https://dev.to/realpickai en Ian Byun Tue, 01 Sep 2026 16:04:08 +0000 https://dev.to/realpickai/i-built-12-free-life-tools-with-nextjs-tarot-mbti-dream-dictionary-birth-chart-and-more-2ifm https://dev.to/realpickai/i-built-12-free-life-tools-with-nextjs-tarot-mbti-dream-dictionary-birth-chart-and-more-2ifm <p>I was tired of personality tests that hide results behind a $29 paywall. So I built <strong>RealPick</strong> — a collection of 12 completely free life tools.</p> <h2> What I built </h2> <p>🔮 <strong>Fortune &amp; Divination</strong></p> <ul> <li> <strong>Tarot Reading</strong> — Full 78-card Rider-Waite deck, One Card / Three Card / Celtic Cross spreads, narrative interpretation</li> <li> <strong>Zodiac Horoscope</strong> — Daily, weekly, monthly for all 12 signs</li> <li> <strong>Dream Dictionary</strong> — 258 symbols with psychological interpretations</li> <li> <strong>Western Astrology</strong> — Birth chart calculator using real astronomical ephemeris, 3D celestial visualization</li> </ul> <p>🧠 <strong>Personality &amp; Psychology</strong></p> <ul> <li> <strong>MBTI Test</strong> — 48 questions, full cognitive function stack (not just 4 letters), career recs, famous people</li> <li> <strong>Psychology Lab</strong> — 4 evidence-based tests: Sternberg's Love Triangle, Maslach Burnout, Rosenberg Self-Esteem, VIA Character Strengths</li> <li> <strong>Love &amp; Attachment</strong> — Attachment style + love language, 8 personas</li> <li> <strong>Blood Type Personality</strong> — All 16 pair combinations</li> </ul> <p>🛠 <strong>Tools</strong></p> <ul> <li> <strong>BMI Calculator</strong> — Body fat estimation, BMR/TDEE, Imperial/Metric</li> <li> <strong>Random Wheel Spinner</strong> — 3D canvas, weighted odds, elimination mode</li> <li> <strong>Face Reading</strong> — Physiognomy with 3D parametric head model</li> <li> <strong>Personal Color</strong> — 4-season analysis with draping simulator</li> </ul> <h2> Tech Stack </h2> <ul> <li> <strong>Framework:</strong> Next.js 15 + React 19</li> <li> <strong>Deployment:</strong> Vercel</li> <li> <strong>Tarot shuffle:</strong> Fisher-Yates algorithm</li> <li> <strong>Birth chart:</strong> Astronomical ephemeris data (not AI-generated)</li> <li> <strong>All client-side</strong> — no user data collected, no accounts needed</li> <li> <strong>Shareable cards</strong> — every result generates a downloadable image</li> </ul> <h2> Why I built this </h2> <p>Every time I found a personality test online, it was the same pattern:</p> <ol> <li>Answer 30 questions</li> <li>"Enter your email to see results"</li> <li>"Unlock full analysis for $29"</li> </ol> <p>I wanted to prove that you can build premium-quality tools and give them away for free. No signup, no paywall, no ads.</p> <h2> Try it </h2> <p>🔗 <strong><a href="https://realpickai.kr/en" rel="noopener noreferrer">realpickai.kr/en</a></strong></p> <p>Would love to hear feedback from the DEV community. What would you add?</p> javascript