Build safe things for kids. Together.
CSEF is an open framework and toolkit for digital learning used by children. It turns EU law, coming rules and research into clear boundaries for your company and checks you can run on every product.
For everyone who builds it
Each block of the house is one group. You do not need to be a developer to start.
Companies
Decide your red lines in a short questionnaire. Get a staff policy in plain language and a report to discuss with legal counsel.
Start the questionnaireDesigners
What research says about rewards, motion, colour and calm screens for children, as design rules you can use.
Design for learningEducators
Every rule, why it exists and its sources: law, proposals and research, in one catalogue.
Rule catalogueDevelopers
A scanner, a GitHub Action, a Claude skill and a dashboard. Your company's guardrails, checked in every pull request.
Quick startHow it works
Answer
Who you build for, your level of ambition, and what you will never do. About 15 minutes.
Share
Get your staff policy, a boundaries report matched with the law and your guardrails file.
Check
Your developers run the check on every project. Change your answers anytime.
A framework, not a standard. CSEF v0.8.0, 106 rules, draft for public comment. Not legal advice and not a certification. Give feedback.