I stumbled upon an interesting service that uses web-assembly to convert 52 file formats (including .blend) to a range of industry-standard 3D formats. What's interesting is that this service is entirely free, AND that everything happens on your browser - files are not sent to their services.
What is this?
Convert 3D converts 3D models from a wide range of formats. No need to buy expensive software or install anything. Convert 3D converts between popular formats like FBX and OBJ, but also the lesser known formats you might have received from a coworker or supplier.
Can you see my files?
No. Your files never leave your computer when you use Convert 3D. The conversion process happens right in your browser using a technology called Web Assembly. This allows Convert 3D to be as fast or faster than an app installed on your computer or a server in the cloud.