Featured in Domain Arrivals · 2026-08-16

Kaselles, the timetable generator that refuses to be a spreadsheet

Kaselles creates conflict-free timetables for vocational schools, language academies, music schools, and training centres.

Why it surfaced

This is a concrete piece of school operations software: it imports teachers, groups, subjects, and rooms, then uses a local constraint solver to find a workable schedule. The especially appealing detail is that it explains impossible schedules, lets users lock good parts, and keeps the school’s data on the computer.