Grow any link into a tree.
Paste a link and it grows — the branches are seeded from the URL itself, so no two links make the same tree. Tap it, and every leaf flies into place as a scannable QR code. Free, no account, no watermark.
Tap the tree to see the QR code · tap again to grow it back. The download saves whatever is on screen, so let the code settle first if it's the QR you want.
The tree couldn't start on this browser.
Everything else on the site works normally — this one needs a canvas.
The tree is the code.
- The URL seeds the tree
Branch angles and lengths come from the characters of your link, so a different link grows a visibly different tree.
- Every dark square is one leaf
When you tap, each leaf flies from its place in the canopy to its cell in the code. Surplus leaves fall away.
- The settled code is a real QR
Error-correction level H with a full quiet zone, so it scans from a phone even if part of it is covered. Mid-flight frames are decoration — let it settle before you scan.
A link someone can reach without typing it.
Your certificate
Finished a volume? Put the QR on your CV or portfolio so your certificate of completion opens on their phone in one scan — nobody has to type a URL.
Your portfolio or CV
One code on a printed CV, a business card or a conference badge — it always points at the newest version of your page.
The thing you built
Built a JARVIS, an agent or a demo in Vol. IV or VIII? Let people open it on their phone without you spelling out a URL.
Want to build things like this?
The whole library is free — nine volumes, video and written lessons, knowledge checks and a certificate of completion at the end of each. Start at Vol. I if you're new.