Biff helps solo developers move fast.

Biff is a batteries-included web framework for Clojure. Launch new projects quickly without getting bogged down in complexity later.

Biff curates libraries and tools from across the ecosystem and composes them into one polished whole.

XTDB

Bring immutability to your database, not just your code. Biff adds schema enforcement with Malli.

htmx

Create rich, interactive UIs without leaving the backend. Throw in a dash of _hyperscript for light client-side scripting.

Authentication

Passwordless, email-based authentication, with support for magic link and one-time passcode flows.

Ready to deploy

Biff comes with code for provisioning an Ubuntu VPS, or you can deploy an Uberjar with Docker.

REPL made easy

Changes are evaluated whenever you save a file. Connect to a production REPL and develop your whole app on the fly.

Meticulously documented

Get started with the tutorial, delve into the reference docs, or tinker with the starter project and inspect the doc strings.

Strong defaults, weakly held. Biff is designed to be taken apart and modified, so it doesn't get in the way as your needs evolve.