Alternatives

Products that do what CertStream – See SSL certs as they're issued in real time does

1. 1IM
   I made a script to generate self-signed SSL certs for local development▲107

   2018 · github.com

2. 2SC
   SSL certificate dashboard▲45

   2016 · github.com

3. 3RT
   Real-time server monitoring in your browser▲346

   2014 · scoutapp.github.io

4. 4FC
   Free Certificate Monitoring via RSS▲120

   2024 · raphting.dev

5. 5CF
   CertRadar – Find every certificate ever issued for your domain▲21

   Jan 2026 · certradar.net

6. 6SS
   Self-signed certs as a service▲16

   2013 · lolroot.ca

7. 7
   Kilo SSL▲126

   Automatic SSL management solution for SaaS providers

   2020

8. 8SD
   SSL Decoder – An open-source alternative for the SSL Labs server test▲160

   2015 · tls.so

9. 9
   TinyCert▲237

   Free SSL certificates for your startup.

   2014

10. 10FS
    Free SSL Certificates▲27

    2015 · sslforfree.com

11. 11
    lcl.host▲307

    Get HTTPS in your local dev environment

    2024

12. 12FA
    Fast and simple way to get EV SSL certificates▲40

    2015 · certsimple.com

13. 13CT
    Certificate Transparency Log Monitor▲53

    2016 · sslmate.com

14. 14MS
    My side project that grew - cheap SSL certificates▲36

    2013 · getssl.me

15. 15CC
    CertMagic – Caddy's automagic HTTPS features as a Go library▲33

    2018 · github.com

16. 16
    Snitch▲86

    SSL Certificate Monitoring and Alerting

    2014

17. 17CA
    Certmaster – Automatically issue and install Let's Encrypt certificates▲11

    2023 · github.com

18. 18SS
    Simple SSL Scanner▲31

    2014 · expeditedssl.com

19. 19TC
    TinyCert – Certificates as a service▲46

    2014 · tinycert.org

20. 20
    ssleek▲92

    A straightforward approach to certificate management

    2024

21. 21KA
    Kuvasz – an open-source uptime and SSL monitoring service▲29

    A few months ago I took out my side project - an uptime & SSL monitoring service - from the drawer. I've decided to give it a new life and completely overhauled it, added a lot of new feature, and most importantly, a UI. Highlights - configurable uptime & SSL monitoring - Telegram, Slack, PagerDuty & E-mail notifications (more to come!) - fully-fledged REST API - a responsive, modern & fast UI - monitors are optionally configurable via a single YAML file, or you can choose to use either the UI or the API to maintain them - Cloud-native, distributed as amd64 and arm64 images - Only one…

    2025 · kuvasz-uptime.dev

22. 22
    CertGuard▲2

    Professional ssl certificate & website monitoring

    Nov 2025

23. 23SM
    Sslnotify.me, a free serverless opensource SSL cert monitoring service▲7

    2017 · alexanderfortin.tumblr.com

24. 24
    SSL Checker Tool▲84

    Free way to identify SSL configuration issues

    2019

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