About

Tokalator is an open-source project by Vahid Faraji.

Vahid Faraji

Senior Applied AI Specialist, Istanbul

I built Tokalator because AI coding assistants have finite context windows, and there was no good way to see where the tokens go.

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Principles

Local first

Your code and logs stay on your machine. Web tools run in your browser.

Verified prices

Every rate is checked against the provider's own pricing page.

Open source

AGPL-3.0, free for everyone. Commercial licences are available.

Research

arXiv cs.SE, April 2026

Tokalator: A Context Engineering Toolkit for Artificial Intelligence Coding Assistants

Vahid Farajijobehdar, İlknur Köseoğlu Sarı, Nazım Kemal Üre, Engin Zeydan

Real-time token budget monitoring, cost tools and a survey showing that instruction files and low-relevance tabs are among the biggest hidden context costs.