App Hub

Spin wheel for events, mini games, and giveaways

Content page from Markdown with TOC and code highlighting

Generate random numbers with digital slot machine animation

Vietnamese lunar calendar with Can Chi, auspicious hours, and holidays

Calculate Personal Income Tax (Vietnam Law 109/2025) with bracket breakdown

Calculate loan payments with amortization schedule and rate comparison

Payment QR page with VietQR bank transfer support

Branded QR code generator — deploy your own public QR tool with custom colors and content types

Create professional CVs with block editor, multiple templates, and multi-language support