open source

building infra that
stays out of your way

Tarn is an independent studio crafting open source security and infrastructure tools for the people who build the internet.

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what we do

security tooling

Lightweight tools built for real-world attack surfaces and honest threat models.

infra utilities

Composable utilities that plug into the workflows you already have.

open by default

Everything we build is open source. Fork it, break it, make it yours.

built for humans

Tools that solve real problems for the people who keep systems running.