mkcert Web UI Hosting Live In 5 Minutes

mkcert Web UI hosting on xCloud gives you a self-hosted certificate manager in the browser for creating a local certificate authority and issuing development certificates. Deploy mkcert Web UI from the OneClick catalog and xCloud starts the pinned 4.3.4 image as one container with four volumes, generates a login and session secret and publishes it over HTTPS. Anyone who can sign in can download private keys, so keep the login private.

Deploy your mkcert Web UI

No terminal
No technical skills needed
No lock-in, cancel anytime

What is mkcert Web UI?

mkcert Web UI is a web interface for the mkcert command line tool. Its README describes generating certificates for multiple domains and IP addresses, downloading them as PEM, CRT or PFX, a SCEP service for device enrollment, basic auth and OpenID Connect sign-in, and expiry monitoring with email alerts. The certificates come from a local certificate authority, so they suit development and private use rather than the public internet. Self-hosted mkcert Web UI is a certificate manager you run yourself, instead of typing OpenSSL commands. It is licensed under GPL-3.0.

On xCloud this template deploys mkcert Web UI 4.3.4, pinned by digest, as one container with no database. Certificates, data, settings and the Root CA each sit on their own volume. The login is a generated password, applied from the environment on every start. The app can create a CA and download private keys, and losing the mkcert_ca volume loses the Root CA key.

From Sign-Up to a Live mkcert Web UI In Just 3 Easy Steps

Self-hosting a certificate manager normally means a container, a domain, a certificate and a generated login before you can issue your first development certificate. This is the same result without assembling any of it.

Step 01
Sign Up
Create your xCloud account and pick mkcert Web UI from the OneClick catalog. Choose a domain — xCloud generates the admin credentials, no other app-specific fields needed.
Step 02
We Deploy It For You
One click. We bring up the pinned mkcert Web UI 4.3.4 image, bound to loopback only, mount its four persistent volumes, and publish it over HTTPS on your domain.
Step 03
Sign In And Create Your Root CA
Save the admin password shown in the protected installation credentials, open the HTTPS URL, sign in as admin, generate the Root CA, download it and install it on your devices, then issue your first certificate.

Everything mkcert Web UI Does, On Your Own Server

mkcert Web UI runs in full here — mkcert certificate issuance and management, wrapped in a login-protected interface you control.

Issue Certificates For Domains, IPs And Wildcards
Issue development certificates for multiple domains, IP addresses and wildcards from one form, instead of running mkcert commands one at a time.
Export As PEM, CRT Or PFX
Download certificates and keys in the format your stack needs — PEM, CRT or PFX (PKCS#12) — without converting them yourself.
One Root CA, Trusted Everywhere You Install It
Create a Root CA once and share its certificate with every device that should trust the certificates it issues.
Upload And Inspect Existing Certificates
Bring in certificates you already have, inspect them, and attach notes saying what each one is for.
Optional Expiry Notifications
Get notified before a certificate expires, by email, webhook or ntfy, if you choose to configure it.
Certificates And Root CA Persist Across Restarts
Certificates, settings and the Root CA are kept on persistent volumes and were verified to survive an xCloud Restart with the same CA fingerprint.

Everything You Need To Run Your Certificates 24/7

Managed hosting for mkcert Web UI, so the parts that keep it online are not your problem.

mkcert Web UI 4.3.4 deployed instantly
Loopback-bound container, no database
Generated admin login
PEM, CRT and PFX exports
Free SSL certificate
Server backups and snapshots
Server security updates included
30+ server locations
Unused balance refunded

What You Can Do With mkcert Web UI

Get trusted HTTPS in development
You issue a certificate for a development hostname and install the Root CA on your devices, so browsers show it as trusted.
Share a local CA with a team
A team keeps one Root CA on a server, and each member installs it, instead of everyone creating their own.
Enrol devices automatically
Devices use the SCEP endpoint with a challenge password you issue from inside the app to fetch certificates.
Track expiring certificates
You turn on monitoring and get email or webhook warnings before a development certificate runs out.

mkcert Web UI vs Alternatives

OpenSSL commands: Some teams build development certificates with OpenSSL commands. mkcert Web UI wraps the mkcert tool in a browser form instead, with downloads as PEM, CRT or PFX.
mkcert: mkcert is the command line tool that this web interface wraps. The web UI adds sign-in, downloads, monitoring and SCEP on a server. Smallstep step-ca is a separate private certificate authority; compare it with mkcert Web UI's browser-based issuing before choosing.
Caddy Manager: Caddy Manager is a separate tool with its own OneClick page for managing the Caddy web server. mkcert Web UI focuses on running a local certificate authority and issuing development certificates.
Traefik Manager: Traefik Manager is a separate tool with its own OneClick page for managing a Traefik proxy. It routes traffic, while mkcert Web UI issues development certificates.

Simple Pricing. Everything Included.

Dedicated Cloud VPS sizes, pre-configured for mkcert Web UI hosting. Pick the one that fits, and resize any time.

Cloud VPS 6 GB

Cloud VPS 16 GB

More certificates, more devices to enroll.

$59.99per month

16 GB RAM
6 vCPU cores
200 GB NVMe SSD
30 TB
Unlimited

Get started

Cloud VPS 24 GB

mkcert Web UI alongside a whole self-hosted stack.

$84.99per month

24 GB RAM
8 vCPU cores
300 GB NVMe SSD
30 TB
Unlimited

Get started

Every size is a dedicated Cloud VPS we provision, patch, monitor and restore. Billed monthly with no lock-in — delete the server and the unused balance comes back to your account. mkcert Web UI itself is free under the GPL-3.0 licence.

Docker hosting

Already Have a Server? Bring Your Own

Connect any VPS — DigitalOcean, Vultr, Linode, AWS, Hetzner or bare metal — and deploy mkcert Web UI on it through the same panel, for a per-server management fee instead of a Cloud VPS rental.

Free

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$4per server / month

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Unlimited sites
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Agency

The same platform, discounted at 11+ servers.

$3per server / month

11+ servers
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All features included
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Priced per connected server, so your rate adjusts automatically as you add or remove servers. You pay your own provider for the server itself.

Self-managed hosting

Ready To Own Your Certificate Authority?

mkcert Web UI on xCloud runs on a dedicated Cloud VPS that we provision, patch, monitor and restore. Deploy faster. Own the server. Stay in control.

Fast Provisioning
Deploy faster using an xCloud Managed Server built with optimized stacks and high-speed SSDs.
Enterprise-grade security
Protect your infrastructure with a free SSL certificate and more advanced security features at no additional cost.
Intuitive Control Panel
From Server creation to application deployment, everything can be managed from our intuitive control panel.

Hear what people are saying about us

See why agencies, developers, startups, and growing businesses choose xCloud to power their projects.

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Frequently Asked Questions

Feel free to contact us with any questions or concerns you may have.

Is mkcert Web UI free?

Yes. mkcert Web UI is open source under GPL-3.0, with the licence file linked from this page at the pinned v4.3.4 tag, so keep the notices and share source for modified versions. xCloud bills for the Cloud VPS under it, not for the app, and there is no per-certificate fee.

Can you self-host mkcert Web UI with Docker?

Yes, and this mkcert Web UI Docker hosting template does it for you: the jeffcaldwellca/mkcertweb image, pinned by digest, runs as one container on your own server, with HTTPS in front of port 3000. It is not a mkcert Web UI cloud account, so your Root CA stays on your server.

How much RAM does mkcert Web UI need?

The template manifest asks for 256 MB of RAM as a floor, because it has no database and only runs the web app and the mkcert tool. This page sells the 6 GB tier, which leaves enormous headroom above that floor for other apps.

How do I sign in to mkcert Web UI?

Use the username admin and the generated password from the credentials. The app requires login, and anyone who can sign in can create certificates, run mkcert commands and download private keys and the CA bundle, so keep the credentials private. Login attempts are rate limited.

Will my devices trust mkcert Web UI certificates automatically?

No. Download the Root CA from the app and install it on each device or browser that should trust your certificates. The app's install action does not change your devices, because the template stops it writing to the container's system trust store.

What is the mkcert Web UI SCEP endpoint for?

It lets devices enrol for certificates with the Simple Certificate Enrollment Protocol. The endpoint at /scep is reachable without login, but enrollment needs a challenge password you issue from inside the app, and open enrollment is off. SCEP clients must use the site's public URL.

How do I change the mkcert Web UI admin password?

Change AUTH_PASSWORD in the Environment editor and redeploy, because the app has no in-app password change and applies it from the environment on every start. SESSION_SECRET signs logins, so rotating it signs everyone out. Update anyone who shares the login.

Does mkcert Web UI sign-in persist across a restart?

No. Sessions are held in memory, so everyone signs in again after a restart. SESSION_SECRET signs the logins, and changing it also signs everyone out. Certificates and the Root CA sit on persistent volumes, so a restart does not lose them.

How do I back up mkcert Web UI?

Back up all four volumes together, and above all mkcert_ca, which holds the Root CA key. Losing it means every certificate your devices already trust stops validating. Keep an off-server copy of that volume, protect it like a password, and test a restore.

Backup and restore Docker apps

How do I upgrade mkcert Web UI?

A running install stays on pinned 4.3.4 until you adopt a newer template version, so catalog updates leave it alone. Newer upstream tags exist. Back up the volumes first and read the release notes, then sign in and issue a test certificate.

Can I cancel anytime?

Yes. There is no lock-in — cancel any time. Hosting is billed monthly and charged for what you actually use, so when you delete the server the unused balance is refunded to your account, less up to 10% in payment-processing fees.