Blog
Blog
Articles about QR codes, EU DPP, APIs and developer tips.
8 min read
Textile DPP is live: check EU compliance in seconds — before you save
qr3.app now supports complete textile passports under France's Loi AGEC + ESPR. New: a live validator and simulator that flags AGEC violations, greenwashing, and ESPR readiness inside the form — before you save.
DPP Textile AGEC ESPR EU Release
10 min read
EU Digital Product Passport: What Manufacturers Need to Know Now
Starting in 2027, the EU Digital Product Passport will be mandatory for batteries and further product categories. What it means, how GS1 Digital Links work, and how qr3.app makes you compliance-ready.
DPP EU GS1 Compliance
8 min read
QR Codes for Developers: REST API, SDK and CLI
How to programmatically generate QR codes, integrate them into your app, and react to scans via webhooks — a technical deep-dive.
API SDK Developer Webhooks
5 min read
Dynamic vs. Static QR Codes: What's the Difference?
The most important distinction when using QR codes in practice: when to use static codes and when dynamic QR codes are essential.
QR Codes Guide Dynamic