Local-first study companion
Your study system,
calm and entirely yours.
Kiritsu brings planning, deep focus, spaced repetition, and meaningful analytics into one private desktop app. No account. No telemetry. No cloud dependency.
Free forever · Windows, macOS, and LinuxYour review horizon
Good morning.
The principle
“The activity log is truth.
Everything else is a view.”
Kiritsu derives schedules, progress, and analytics from your real study history. Edit something and the future is replayed deterministically.
One thoughtful system
From intention to evidence.
Shape the work
Build materials as deep section trees and connect concepts across every source you study.
Remember on purpose
Two-track spaced repetition schedules study and practice sessions, not artificial flashcards.
Focus without friction
Pomodoro, custom cycles, and freeform timing flow directly into an immutable activity history.
See honest progress
Local analytics show time, accuracy, consistency, review adherence, and the workload ahead.
Private by architecture
Your work stays on your machine.
Local SQLiteYour study system lives in a portable local database.
Zero telemetryKiritsu does not collect usage, identity, or study data.
Offline foreverOnly an explicit GitHub update check uses the network.
Give your effort a shape.
Kiritsu is free forever and ready for your next study session.