Atrium

What it does

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.

Self-hosted client portal with project management, file sharing, invoicing, and white-label branding. Built for agencies and freelancers.

Atrium is a branded client portal for agencies. Projects, files, and invoices—one link, your domain, your logo. Self-host for free or use our hosted version —no setup required. Stop juggling five different tools. Atrium brings it all together. Projects, files, and invoices—all in a branded space that feels like yours, not a third-party tool. Status pipelines, update threads, and task lists—no more "where are we?" emails. Line items, payment tracking, and a professional PDF—built in. Clients can pay directly via Stripe. Add one CNAME record and portal.youragency.com is live—SSL provisioned automatically, no certificate setup. Clients see your brand, not ours.…from atrium.vibralabs.co

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  Atrium – An open-source, self-hosted client portalMar 2026 · github.com · ▲5

  I started a solo software engineering lab earlier this year and wanted a professional foundation for my clients from day one. I looked at platforms like HoneyBook, but they are expensive and didn't feel built for developers. I wanted a lightweight, self-hosted, and white-label solution that handled the essentials—file sharing, project tracking, and invoicing—without the SaaS tax. So I built Atrium. It’s a clean interface that gives clients a single place to track progress and handle billing under my own branding, rather than me stitching together fragmented tools. Core Features: *…

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