Based on our record, Smallstep Certificates seems to be more popular. It has been mentiond 10 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Just a little heads up https://smallstep.com/certificates/. Source: about 1 year ago
Step-ca: Not web based, but the CLI is pretty user friendly: https://smallstep.com/certificates/. Source: about 1 year ago
I was just looking at https://smallstep.com/certificates a few days ago. It looks like they have an operator that fits your description as well as example docs for setting up inter-microservice mtls. Source: about 1 year ago
In the quick search I learned about Ssh cert authority which looks very manual and also like a dead project Smallstep's step-ca who put together very nice article about how to begin certificate authority process Netflix' BLESS is AWS only Cashier which also looks quite ok. Source: almost 2 years ago
If you want something a little fancier (I.e. Get automatic certs with all that ACME goodness) check out SmallStep. This is next on my list of homelab projects. Source: about 2 years ago
EJBCA - EJBCA® is a PKI Certificate Authority software, built using Java (JEE) technology.
PKI.js - PKIjs is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto (Web Cryptography API) and requires no plug-ins.
Dogtag PKI - The Dogtag Certificate System is an enterprise-class open source Certificate Authority (CA).
VeriSign - VeriSign Authentication Services provides solutions that allow companies & consumers to engage...
Portecle - Portecle is a user friendly GUI application for creating, managing and examining keystores, keys...
Vault by HashiCorp - Tool for managing secrets