Terms of use

The rules, plainly stated.

Last updated: April 18, 2026

Your work is yours

Anything you create using the tools on this site — characters, stories, worlds, dialog trees, design documents, writing exercises — belongs to you. Use it freely, commercially or otherwise. No attribution required. We claim no rights to your output.

The tool outputs themselves (writing prompts, element pairings, genre combinations) are generated from curated data pools and randomization. We make no claim that your exact combination hasn’t appeared elsewhere, and we don’t guarantee uniqueness.

The tools are free, and provided as-is

The Impossible Codex is free to use. No subscription, no premium tier, no feature gating. In exchange, the tools are provided without warranty of any kind, express or implied. They are best-effort work by a solo developer. If a tool produces unexpected output, loses your local-storage history, or stops working entirely, we owe you no remedy beyond fixing the issue when we can.

Acceptable use

Don’t do any of the following:

Intellectual property

The name “The Impossible Codex,” the asterism sigil, the site’s design, visual identity, and written copy are the creator’s. Individual tool source code is the creator’s. Please don’t copy the brand or rehost the site verbatim. If you’ve built something inspired by a tool here and you want to share or credit, we’d love to hear about it — email below.

Third-party services

Links to Patreon, Ko-fi, and any other external service take you to services with their own terms. We don’t control those services and aren’t responsible for what happens there.

Once enabled, advertising will be served by Google AdSense, governed by Google’s terms. The site will not knowingly host ads that misrepresent themselves as part of the site’s content.

Limitation of liability

To the maximum extent permitted by law, the creator is not liable for any indirect, incidental, consequential, or punitive damages arising from use of the site or its tools. This includes lost writing, lost tool history, or opportunity cost from time spent on an exercise that didn’t go well.

Changes

These terms may change. Material changes will be reflected here with an updated date at the top. Continued use of the site after a change means you accept the updated terms.

Contact

hello@impossiblecodex.com.