Your website, built on Umbraco.

Umbraco is the trusted software that runs your website behind the scenes — open, secure, and yours to keep. The same platform careful, well-known brands rely on every day.

Talk to us about your site

750,000+websites run on Umbraco

The Umbraco editor: the same product page being edited side by side in Swedish and Finnish.
The Umbraco editor — one page, edited in two languages.

So what is Umbraco?

Think of your website as a building. Umbraco is the foundation and frame underneath it — the part you never see, but everything depends on. A strong one means a site that’s fast, safe, and easy to change.

The engine, not the paint

Umbraco runs your site behind the scenes. Your look, words, and brand sit on top — Umbraco keeps it all loading fast and staying online.

Yours to keep — no rent

Umbraco is open-source and free to license. No yearly platform fees, no vendor holding your site hostage. You own it.

Easy to update yourself

A friendly editor lets your team change text, images, and pages — without calling a developer for every small thing.

Licence
Open source (MIT), free to use
Built on
Microsoft .NET
Long-term version
Umbraco 17 LTS
Made by
Umbraco HQ (Denmark) and a global community

Try it yourself

This is Umbraco. Go ahead, click around.

A working miniature of the Umbraco editor, set up like a site we built: dominicanaflc.com, the Festival del Libro y la Cultura Dominicana in New York. Edit a page, publish it, add an English version, and ask the AI agent for help. The live site below only changes when you publish.

Scroll sideways to see the whole editor. Like the real Umbraco, it’s made for a computer screen.

Content
Content BlocksThe sections of this page, top to bottom.contentBlocks
SEO
Shown in search results and read by AI assistants. Up to 160 characters.metaDescription
127 / 160
  1. Inicio
Live site
dominicanaflc.com/
Festival del LibroPrograma · Voces · Patrocinadores

Nueva York · 11–13 de junio

Leer es florecer

Tres días de lecturas, talleres y voces de la cultura dominicana en Nueva York. Del 11 al 13 de junio en el George Washington Educational Campus. Entrada gratuita.

In search results and AI answers
dominicanaflc.com

Leer es florecer | Festival del Libro y la Cultura Dominicana

Festival del Libro y la Cultura Dominicana en Nueva York: lecturas, talleres y autores del 11 al 13 de junio. Entrada gratuita.

A simplified copy of the Umbraco editor that runs in your browser; nothing is saved or sent. Page types, blocks and field names are the real ones from dominicanaflc.com; the wording is demo copy, and the live site is Spanish-only today. The agent’s answers are prepared in advance; the checks it runs are real.

The real thing

dominicanaflc.com, built by Nubis on Umbraco

This is the live site of the Festival del Libro y la Cultura Dominicana in New York, running on Umbraco. The editor above uses its real page types, blocks and fields. Scroll around inside it.

If the site doesn’t appear here, open it in a new tab. dominicanaflc.com
Platform
Umbraco 17 on Umbraco Cloud
Pages
Built from reusable blocks the team arranges
Forms
Newsletter and sponsor forms with Umbraco Forms
Audience
Spanish-first, built for phones

Agent-ready

Why Umbraco is an agent-ready CMS

AI is moving from answering questions to doing work: drafting pages, translating, updating products. Umbraco is opening up to these AI agents in a controlled way, under the same rules as your team.

Umbraco’s three rules for AI

  1. ChoicePick the AI provider and model you trust. Umbraco doesn’t lock you into one.
  2. ControlYour tone of voice, permissions and guardrails apply. AI never publishes content on its own.
  3. ConnectionAgents connect through MCP, the open standard AI tools use to work with other software.

What that means in practice

  • Public beta on Umbraco Cloud

    Edit your site from ChatGPT or Claude

    With the CMS Editor MCP, editors connect ChatGPT, Claude, Gemini, Copilot or Le Chat and find, create and update content in plain language. They sign in as themselves, so the assistant can never do more than they could.

  • Available

    AI inside the editor

    Umbraco AI adds ready-made actions such as alt text, SEO titles and summaries, plus a Copilot chat that knows which page you’re working on.

  • Built into Umbraco AI

    A person stays in charge

    AI changes wait for a manual approval before they’re saved or published, and AI activity is logged, so you can always see what happened.

  • Beta and open source

    Faster, better builds

    For developers, the Developer MCP and Agent Skills teach AI coding tools how Umbraco works, so new features follow its best practices.

  • Built in

    Content any system can read

    The Content Delivery API serves your content as clean, structured data, so apps, search engines and AI tools get the facts straight from the source.

  • What we do with it

    We set up Umbraco so your team and your AI tools work from the same well-structured content, with permissions and approval steps that match how you work. The demo above shows the idea.

Statuses as announced by Umbraco in 2026. Beta features can change before their final release. Sources: Umbraco product update, Q3 2026 · Umbraco AI · The agent-ready CMS · Developer MCP.

Brands that run on Umbraco

Umbraco powers over 750,000 websites — from local businesses to names you’ll recognise. A few of them:

All public Umbraco case studies — source: umbraco.com. Logos belong to their respective owners.

Why Umbraco is a smart, safe bet

No license fees

Open-source means you don’t pay to use the platform — your budget goes into your actual site, not software rent.

Seriously secure

A strong security record and a dedicated team watching for issues — it matters when your site carries your reputation.

Fast and reliable

Built on modern Microsoft .NET — quick for visitors and stable when traffic spikes.

You stay in control

Your content, your data, your choice of hosting. No lock-in to one vendor’s rules.

Grows with you

From a simple site to a large multi-language one, Umbraco scales without starting over.

Big, friendly community

Thousands of developers worldwide — so help, add-ons, and talent are always easy to find.

Why we build on Umbraco — and not the big names you’ve heard of.

Every platform has trade-offs. Here’s why we build on Umbraco for control, low running costs, and an AI-ready site — and where the big names still fit.

The freedom of open-source, the security of serious software — and the cleanest path to a site that AI recommends.

See the full comparison
How Umbraco compares with WordPress, Sitecore / AEM, and Contentful across cost, security, ownership, total cost, editing, and AI-readiness.
UmbracoOur pickWordPressThe popular oneSitecore / AEMThe expensive onesContentfulThe developer-only one
What it costs to licenseFree to license — StrongFree core — StrongSix-figure fees — WeakPay per user — Fair
How secure it isBank-grade, rarely targeted — StrongThe most-hacked platform — WeakStrong but heavy — FairSecure but locked-in — Fair
Who’s in controlYou are, fully — StrongYours, but messy — FairLocked to the vendor — WeakLimited by their rules — Weak
Cost over timeLow and predictable — StrongCreeps up over time — FairVery high — WeakGrows with use — Fair
Easy to update yourselfClean and simple — StrongFamiliar but cluttered — FairHard to learn — WeakBuilt for developers — Fair
Ready for AIReady out of the box — StrongNeeds work — FairPossible but complex — FairReady, but rigid — Strong
Why we build on Umbraco

Switching to Umbraco is painless

We handle the move end to end — and your current site stays live the whole time.

  1. 01

    We map your current site

    Every page and piece of content, and exactly what needs to carry over.

  2. 02

    We rebuild it on Umbraco

    Faster, more secure, and easy for your team to edit.

  3. 03

    We switch you over

    No downtime — visitors never notice the change, except that it’s quicker.

Want a site built to last on Umbraco?

Tell us about your business — we’ll show you what’s possible.

Start a conversation