Cachix free for open source — what you get and how to apply

Free Nix binary cache with a 5 GB storage limit (compressed) for open source projects, plus 20 Cachix Deploy agents.

Eligibility: for the project; Offer is stated as being for open source projects; page does not document a verification process or further criteria.

How to apply: Sign up on cachix.org; the free open source tier is provisioned on signup for OSS use.

last verified 2026-07-06