About HonsTool

HonsTool is a collection of free web tools for the small calculations and checks we all need every day — a day counter, currency converter, Korean age calculator, character counter, lunar calendar converter, dead pixel test and more. Each tool does one job, and does it well.

How we build

• Instant — the input is the first thing you see, and results update as you type.
• Private by default — most tools run entirely in your browser; nothing you type is sent to a server. Only tools that need live data (exchange rates, weather) fetch public data.
• Fast and light — no heavy frameworks, so pages load quickly even on slow phones.
• Multilingual — available in Korean, English and Japanese, shown automatically in your browser's language.

How the site is run

HonsTool is run independently and is supported by advertising. We never place ads over the input area, so they won't get in the way of using a tool.

Results are based on published formulas and standards, but please confirm anything legal, financial or medical with an official source.

Contact

Bug reports, tool ideas and partnership inquiries: contact@honstool.com