DAMOA - 92 free online tools for dev, office, and everyday work

DAMOA is a free, no-signup toolbox with 92+ online utilities for developers and office work: JSON/CSV/YAML tools, regex tester, timestamp converter, calculators, converters, Excel helpers, and more. What makes it different is speed and convenience: one searchable hub (Ctrl+K), bilingual KR/EN UI, mobile + dark mode support, and many tools process data directly in your browser for better privacy.

Hi Product Hunt, I’m Seunghyun, a solo maker from Korea. I built DAMOA because I kept searching for the same calculators, converters, and developer utilities during work. I wanted one place that is fast, practical, and free. DAMOA now includes 92+ tools across dev, office, finance, and daily tasks. No signup is required, it works well on mobile, supports KR/EN, and many tools run directly in the browser for better privacy. I’d really appreciate honest feedback: - Which tool should I add next? - What feels slow or confusing in the UX? - Any bugs on mobile or desktop? Thanks for trying it.

DAMOA - 92 free online tools for dev, office, and everyday work

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