Certify SSL Manager manage free https certificates for IIS

The SSL Certificate Manager for Windows, powered by Let's Encrypt

Easily install and auto-renew free SSL/TLS certificates from letsencrypt.org for your IIS server. Setting up https has never been easier.



Latest stable release
Download 3.0.5

Digitally Signed as Publisher 'Webprofusion Pty Ltd'
File SHA256 as generated by certutil -hashfile SHA256: 8b28a649d47330ec35e911c0707c04b5505241526e2ff58cadcc86d4a2a0ee78

View Release History

V3.0.3 - 3.0.5: Released 2017/12/14
  • Fix feedback submission (previous feedback/crash reports for 3.x will not have been received)
  • v3.0.4: Remove debug exception on create new certificate
  • v3.0.5: Use long timeout for long-running operations
  • Known issues: for some users the installer is not always replacing the current version. After install check the version under About to ensure it has updated.
V3.0.2 : Released 2017/12/12
  • New dashboard reporting integration for multi server monitoring and failure notifications
  • Auto Renewal process can now run as a background service
  • Managed sites now scales to many thousands of sites
  • IPV6 binding support
  • IDN Domain Binding Fix
  • Translation updates (new Norwegian translation by Steffen Fridtjofsen)
  • New renewal status information in UI
  • UI updates and fixes
  • Context menu to sort managed sites by name or expiry date


Latest beta release
No current beta releases.

Note: The app is free for up to 5 managed sites per server. If you want to manage more than 5 sites (or you just want to support development) you can purchase an upgrade key.


This software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.

Got feedback?
Email Us or file issues on GitHub

Note: Our app is Open Source (https://github.com/webprofusion/certify) and uses the cool ACMESharp PowerShell project by Eugene Bekker and ACMESharp contributors which is licensed under MPL 2.0