free & open source • works offline

Rank anything with
pairwise comparisons

Compare two items at a time. Statistical algorithms reveal your true priorities. No more agonizing over lists.

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terasu

Drag-and-drop ranking doesn't scale

You have 20 priorities. Ranking them all at once means juggling 190 possible comparisons in your head. Your brain can't hold that. But answering "which matters more, A or B?" — that's easy.

Around 30 pairwise choices is all it takes to produce a statistically sound ranking.

THE HARD WAY
task 1 task 2 task 3 task 4 task 5 task 6 task 7 ...
THE SMART WAY
Task A or Task B

Three simple steps

I
📜

Add your items

Paste a list of tasks, ideas, or anything you need to prioritize. One item per line.

II
⚖️

Compare pairs

"Which is more important?" and "Which is quicker to do?" Just pick one each time.

III
🌱

Get your rankings

Terasu calculates the optimal order based on importance and speed. The best ROI tasks surface to the top.

Built for speed and clarity

⌨️

Keyboard-first

Press 1 or 2 to choose. T to switch dimensions. Your hands never leave the keyboard.

🌳

Offline-first

Works without internet. Your data stays on your device. Optional cloud sync when you want it.

🔮

Smart convergence

Confidence indicators tell you when rankings have stabilized. No wasted comparisons.

📘

Export anywhere

Export as CSV, JSON, or a shareable image. Your data, in whatever format you need.

Powered by proven algorithms

Terasu uses ASAP (TrueSkill) by default — the same algorithm Xbox uses for matchmaking, adapted for priority ranking. It picks the most informative pairs to show you, so fewer comparisons yield better results.

Four algorithms available: ASAP, Glicko-2, Elo, and Bradley-Terry. Each has different strengths — pick the one that fits your use case.

score = w × importance + (1-w) × speed
Adjust the weight slider to match your priorities. Default: equal balance (w = 0.5).
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Stop overthinking.
Start ranking.

Free and open source. No sign-up required.

Launch Terasu