WTF Worldwide Teachers Friend

Exam reverse-engineering, for any course

Every past paper, reverse-engineered. Every mark, accounted for.

Give WTF a course's past papers and marking keys. It gives you back the course: every question split by what it tests, every mark by what earns it — then writes practice in the same shape, builds mock papers like the real ones, and shows where your marks go missing.

7subject packs
2exam boards
1,343past questions, mark by mark
0bytes of exam text shipped
01

Download WTF

The open-source app for Windows and macOS. It ships no subject: you choose your courses from WTF Hub on first run.

Latest release v2.1.0

GitHub Releases →
02

WTF Hub

Every course is a pack: WACE Mathematics, Chemistry, Physics, Accounting and Finance, Cambridge 9709 — and whatever comes next. The app downloads it, checks its SHA-256, and asks for your own copies of the papers.

hub/index.json

Browse the packs →
03

WTF Studio — by invitation

For teachers: class lists, marking mark by mark with AI proposals you confirm, mastery per student and per class, one-click papers built to a real paper's blueprint. Write to us with your school, subjects and role.

Invites & schools
[email protected]
Studio support
[email protected]
Request an invite →
04

Build a pack for any course

WTF Compiler is free inside WTF: bring exam PDFs, marking keys and a syllabus, connect your own AI agent over MCP, and compile a pack anyone can install. The framework, the pack protocol and the Compiler are open source.

LxCenady/worldwide-teachers-friend

View the repository →