Keystroke-Level Model Analyzer

What it does

Keystroke-Level Model Analyzer helps designers evaluate web task flows with classic HCI rigor. Inspired by Card, Moran, and Newell, this Chrome extension records a known task and turns it into an auditable KLM estimate: expert time, operator counts, bottlenecks, and step-by-step trace.

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• IM
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  Hey HN I read and research multiple things, both for work and personal curiosity. But I realized that in doing so, I have to frequently switch among many reading tabs and note-taking pages, which breaks my reading flow. That's why I teamed up with my friends to build Saner.ai Chrome Extension. It’s a side panel note that appears across tabs, and we can toggle it on and off whenever we like. Also, we can highlight any text and then use keyboard shortcuts to save it along with its URL. This has made my reading and research experience smoother :) I hope it will be helpful to people like us out…

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• NW
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  Life & fun · May 2026 · github.com

• FM
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