IntraWeb Certificate Manager allows developers to request and install Let’s Encrypt free SSL Certificates, generate self-signed development SSL Certificates with ease, install SSL certificates for Http.sys applications on Windows and a whole lot more!
IW Certificate Manager is 100% free even for commercial use. It is 100% ads/spyware free!

Download the latest version for Windows:
1.1.0.4 (zip file, no install)
SHA256 Hash (zip): a918874449e4b354c90f267953385532c343a23d1e7b34a29fba18f81e49a0aa
Virus total report*: https://www.virustotal.com/gui/file/a7ab44c4ff216d33f24ee30e51e84e0f44ff45567b3a7e4d256292a822d3c136?nocache=1
*Note: There are 2 not well known AV engines (Bkav Pro, MaxSecure) that detect it as malicious. Both have been notified on Jun/2023 to fix the false detection