Privacy

Oopswhere has no database and never sees your password. You sign in on your university's own site (USOS), and we receive one-time access that we use only to read your list of class groups and your first name. We revoke that access right away.

The group list and first name are stored in an encrypted cookie in your browser. The server keeps nothing about you. Signing out deletes the cookie.

Class group timetables, lecturer names and rooms are public USOS data. We cache them briefly so we don't put load on the university's servers.

No analytics, no ads, no third-party fonts. The code is open — you can verify every sentence on this page.