scroll
Snap reality. Code the vibe.
A professional color picker and palette builder for iOS & Android. Capture colors from the real world — translate them into design tokens, hex codes, and harmonious palettes in an instant.
Global ID print · Photo to ID photo · PDF · Watermark · Sizing
An all-in-one ID and document toolkit for global users — ID digitization, ID photos, document scan to PDF, image sizing, and built-in watermark protection. All on-device, nothing uploaded.
Don't let the airlines keep your money.
Flight delayed? Bag lost? Stop letting airlines win with confusing forms and endless hold music. Throw your boarding passes, AirTag screenshots, and coffee receipts into ClaimJet. We turn your scattered photos into an airtight, undeniable claim dossier. No accounts, no commission cuts, and your data stays 100% on your device.
Create & Share personality quizzes online.
Build personality tests, psychological assessments and trivia quizzes in minutes — on web, iOS and Android. No coding needed. Multilingual support, real-time analytics, 20,000+ active users worldwide.
One click. Full-site health report.
A free Chrome extension that audits security, compliance, traditional SEO, AI SEO (LLMO), and Core Web Vitals — with fix generators, unlimited AI prompts, full-site SPA crawling, and PDF/Markdown export.
I'm Sifu Song — a systems thinker and full-stack developer with a passion for crafting digital products that are both technically elegant and beautifully useful.
As the author of SkyQuiz, IDPageMaker, ClaimJet, and ProfitLint, and co-creator of PaletteTap, I believe great software lives at the intersection of rigorous engineering and creative intuition.
Have an idea? Want to collaborate? I'm always open to interesting conversations.