Small, practical, local-first
Tools run in the browser where possible. There is no account to create, and KoguNavi does not need a database.
KoguNavi
About KoguNavi
KoguNavi is a tiny toolbox for everyday cleanup tasks. It helps you format, convert, count, and tidy small bits of data without turning the job into a whole project. KoguNavi is growing first around Japanese forms, dates, text cleanup, and character issues that come up in everyday work.
Development and maintenance
KoguNavi is an independently developed and operated tool site. Each tool describes how to use it, what it checks, and its limitations.
When reporting a problem, include the tool name and steps to reproduce it. Use fictional examples instead of real contact lists or confidential data.
Report a problem or suggest an improvementStart with the tools
Browse the directory, filter by category, or open the public tool data when you need a developer-friendly reference.
Useful for people
The goal is simple: paste, tidy, copy, done. KoguNavi focuses on dependable little utilities.
Open tool data
Tool pages include examples, input and output descriptions, use cases, limitations, and public metadata for developers.
What is published now
KoguNavi has a growing set of working tools. More will be added gradually. There is no sign-in flow, and public tool data is available at tools.json and llms.txt.
Official accounts
Find practical guides and updates from KoguNavi. Posts are mainly in Japanese.