Notes on certificates people can trust
What the name சான்று means, how digital certificates and QR verification work, and practical guides for issuing certificates at scale.
What is Saandru? The Tamil word for proof, on every certificate
சான்று means proof, and it sits inside சான்றிதழ், the Tamil word for certificate. Here is why we chose it, and what the platform does.
Read the articleWhy verifiable certificates matter for colleges, organisations and events
A certificate carries your name long after the event ends. What changes for colleges, institutes, companies and events when anyone can check it.
Read the articleDigital certificates explained: from paper to PDF to verifiable record
Most digital certificates are paper certificates saved as PDF. What makes one verifiable, and how a signature catches an edited copy.
Read the articleQR code certificate verification: how it works and 10 best practices
A QR code is only as good as the page it opens. How the scan works, what the page should show, and ten things to get right.
Read the articleSaandru vs Canva, Certifier, Certopus, Sertifier and CertPie: an honest comparison
Verification, volume and price compared across six ways to issue certificates, including where another tool is the better choice.
Read the articleHow to create certificates in bulk from Excel or Google Sheets
From a messy attendee list to hundreds of signed certificates: preparing the sheet, exporting CSV, mapping fields and checking before you send.
Read the articlePut a signed QR code on your next batch.
50 certificates a month free. Verification on every plan. No credit card.