Jeff Senecal

Tech founder living in Tokyo

About

Solo founder building Kotomora, a better way to understand Japanese. Former Zappos software engineer, currently studying Japanese in Tokyo.

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Tastemaker

Gone streaking

Maker History

KotomoraThe Japanese dictionary that explains how words are used
Jul 2026

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Joined Product HuntJune 26th, 2026

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1d ago

Kotomora - The Japanese dictionary that explains how words are used

Kotomora is a modern Japanese dictionary built for learners who want more than quick definitions. Search in Japanese, English, romaji, or handwriting; analyze complete sentences; and understand nuance through usage notes, natural examples, pitch accent, conjugations, related words, kanji details, and translation guides. Available free on the web, iOS, and Android.