Atrium is the open-source client portal built for agencies and freelancers who want full control. Share projects, files, and updates with your clients under your own domain and branding. Self-host it for free, or use our cloud-hosted version. No per-seat fees, no vendor lock-in, full data ownership.

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Hi Everyone!

I’m Edgar and I’m excited to share Atrium with you all today! 🚀

As a developer building for clients, I was frustrated with the SaaS trap. Most client portals charge you more as you grow even if the tech doesn't change. I wanted something that felt like it belonged to my agency, not a third party.

What makes Atrium different?

Self-Hosted First: Deploy via Docker in minutes. Your data, your server.
Fully White-Labeled: No "Powered by" badges. It’s your brand.
Flat Pricing: No per-seat fees. Ever.

We also have a Cloud version for those who want to skip the DevOps and get straight to work!

I’ll be here all day responding to your questions

Let's build something better together! 🥂