Mayeul Collot We use Quartzy, not sure It's still free though, you can manage inventory and orders with it
quartzy.com
Mayeul Collot There are plenty of: LabGuru (subscription provided for free for inserm affiliated labs), eLabFTW (initially a digital lab book, but a beta extension is being developped for lab inventory, the CNRS choice), and here, we are setting up Quartzy (I have an old account, so free)