Web tools for everyday work — they run right in your browser, nothing to install, and one account works across every app.
Products
PdfEditor, ẢnhThẻ and Family Tree are ready — more apps are on the way.
Every PDF tool in one place
Edit text, merge, split, compress, watermark and password-protect PDFs right in your browser. Your files never leave your device.
ID, passport and visa photos on your phone
Take a phone photo; AI removes the background, frames your face to the rules and exports a 300 DPI file or a 10×15 print sheet. Photos never leave your device.
Build and keep your family tree online
Build your tree by generation, record lunar-calendar death anniversaries, add portraits and share a view-only link with the whole family. Works on any device.
Scan the QR, order at the table
Guests scan the QR code on their table to browse the menu and order; owners run tables, kitchen and staff from one app.
How we build
No installs, no setup. Open the page and get to work, on desktop or phone.
Data is processed only where it has to be. With PdfEditor and ẢnhThẻ, your documents and photos never leave your device.
Sign in once with email or Google and use the same account across every ungdungonline app.
PdfEditor and ẢnhThẻ are free, and Family Tree is free for your first 10 people — nothing to install, open one and start right away.