Certify The Web

Manage free https certificates for IIS, Windows and other services

Professional Certificate Management for Windows, powered by Let's Encrypt

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

Screenshot of Certify The Web Desktop UI

Version 5.4.3

Latest stable release
Download 5.4.3

Alternatively download using PowerShell

Supported OS: Windows Server 2012 R2 (or higher, includes Windows 10) with .Net 4.6.2 (or higher).
The app requires outgoing https for API calls, proxies are not officially supported.

Digitally Signed as Publisher 'Webprofusion Pty Ltd'

File SHA256 as generated by certutil -hashfile SHA256: 296bb55a80ddac21ae8166a54b41449dbab3744613806e2a6993090a9d638ced

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


Used daily by more than 100,000 people and organisations around the world, including:


The Community Edition is free and will manage a limited number of certificates per server, with community support. If you want to manage many certificates or you require access to support you can purchase a license key.