For Belgian electricians
Your GREI inspection file, ready in one click.
Draw the layout plan: Vonkcad makes the single-line diagram, the 3D board, the GREI check and the PDF file for the approved inspection body.
- Free during the beta
- No bank card needed
- Windows and Mac
What Vonkcad does for you
The file in one click
Single-line diagrams, layout plans, board layout, materials list and measurement sheet: the complete PDF file for the acceptance inspection.
The GREI checked as you go
Cross-sections, 30 mA, number of points, bathroom, earthing: errors are flagged while you draw, under the GREI Book 1, 2026 version.
The board in 3D
The enclosure and its devices, row by row, with the materials list and labels.
Ready in five minutes
Create your account
An email address and a password: they are also your sign-in details in the software.
Confirm your address
Click the link in the email: your access opens straight away.
Download Vonkcad
Install it and open the sample project to explore the software.
Frequently asked questions
Is it really free?
Yes, for the whole beta, with no bank card. Prices will be announced before the launch, and beta testers will be told first.
Who is Vonkcad for?
For self-employed electricians, installation companies, design offices and schools, for domestic and non-domestic work alike.
Do I need an Internet connection?
For the first sign-in only. After that, you can work offline for up to 48 hours: access is checked again as soon as you are online.
Does Vonkcad replace the compliance inspection?
No. The check is a design aid: it covers the most common rules for domestic installations and the main documents for non-domestic installations. The inspection is still carried out by an approved inspection body.
Your next file, with Vonkcad
Create your free account in one minute.