Certify SSL Manager manage free https certificates for IIS

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

Summary Screenshot

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

The app is free for a limited number of managed certificates per server. If you want to manage many certificates (or you just want to support development) you can purchase an upgrade key.

Certify SSL Manager is used by more than 70,000 people and organisations around the world, including:


Version 4.1.4

Latest stable release
Download 4.1.4

Minimum Requirements: Windows Server 2008 R2 SP1 (64-bit) or higher with .Net 4.6.2 or higher.

Digitally Signed as Publisher 'Webprofusion Pty Ltd'

File SHA256 as generated by certutil -hashfile SHA256: 0578b907488eb426060ce6a098f0d4da8e533ae49b47f18193efbab81fa965bd

V4.1.4: Released 2019/01/29
  • Fix: Microsoft.Management.Infrastructure exception on Server 2008 R2. Users on older versions of windows are advised to have the latest version of the Windows Management Framework installed unless they have compatibility requirements that prevent that.
V4.1.3: Released 2019/01/27
  • Fix: avoid Microsoft.Management.Infrastructure exception on Server 2008 R2
V4.1.2: Released 2019/01/25
  • Fix: ensure legacy database schema upgrades complete OK
V4.1.1: Released 2019/01/25
  • Important: legacy tns-sni-01 challenges will now fallback to http-01
  • New: New certificate cleanup options under Settings, including daily full cleanup
  • New: support for acme-dns (CNAME redirection service: https://github.com/joohoi/acme-dns) for DNS challenges
  • New: Microsoft DNS API Provider (contributed by AJ Henderson)
  • New: Test results now support copy on click for copy/paste usage
  • Fix for account key encoding in non-english locales
  • Renew All/Auto Renew is now synchronous to reduce issues with larger installations committing many IIS bindings
  • Enhanced error reporting UI for service startup
  • Various fixes, updates and UI tweaks

Please backup your c:\programdata\certify\ folder before updating between major versions.


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.

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