Software that minds its own business.

PrivStack is built by people who got tired of being the product.

Modules

200+

Features

Data Sold

Why We Exist

Our Mission

Every productivity app wants your data in their cloud. For sync, for AI, for "collaboration" — really, because your data is valuable. We think that's backwards.

You should be able to write notes without a company reading them. Plan your day without advertisers knowing your schedule. Manage your work without your tasks sitting on someone else's server.

PrivStack exists because productivity software should work for you — not on you.

What We Believe

Our Philosophy

Your data is yours.

Not "yours but we have a copy." Yours. Full stop. We built PrivStack so your data never leaves devices you control.

Privacy isn't a premium feature.

Every plan gets the same encryption. Privacy shouldn't be something you pay extra for — it's a fundamental right.

Software should be sustainable.

Customers pay us to build software that respects them. Sustainable growth, long-term thinking, no compromising our values.

Complexity isn't security.

Real security is simple: encrypted on your device, we never have the keys. No backdoors, no exceptions, no "trust us."

Local-first is the future.

Your software should work whether you're online or off, whether we exist or not. Your data outlives any company.

How We Build

Building Different

No surveillance architecture

Nothing to breach because we don't have your data.

Source-available under Polyform Strict

The core engine, desktop shell, and relay server are publicly available. Read every line, verify the encryption, confirm our claims. View on GitHub

The Rust core engine, .NET desktop shell, and relay server are source-available under Polyform Strict. Read every line, audit the crypto, verify our claims. View on GitHub

Native, not Electron

Real performance. Real efficiency. Real apps.

Sustainable business model

Software sales only. You pay, you're the customer.

Our Commitments

What We Won't Do

Sell your data

Ever, to anyone. Our architecture makes it impossible — we don't have your data to sell.

Add "just a little" tracking

No gradual erosion of privacy. Telemetry is opt-in only, and we'll never change that.

Make it hard to leave

Export your data anytime in standard formats. We want you to stay because we're good, not because you're trapped.

Disappear with your data

The core engine, desktop shell, and relay are already public under Polyform Strict. If we shut down, we'll open source the plugins too. Your data doesn't depend on us existing.