Unit Converter
Free unit converter — 16 categories, 120+ units, offline
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Unit Converter - Free unit converter — 16 categories, 120+ units, offline

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Pro Unit Converter is a free, fast, and comprehensive unit conversion tool. It covers 16 categories including length, weight, area, volume, temperature, speed, time, digital storage, currency, angle, pressure, energy, density, power, voltage, and cooking Key features: live conversion as you type, dark mode, batch mode, precision slider, unit info popovers, shareable URLs, PWA (works offline after install), and a public JSON API. No ads, no signup, no paywalls.

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Hey Product Hunt! 👋 I built Pro Unit Converter because every unit converter I used was either cluttered, missing the units I needed, or broken on mobile. So I made one I'd actually want to use: 16 categories, 120+ units — length, weight, temperature, currency (live rates), cooking, pressure, and more Converts as you type — no button to click Batch mode — convert a list of values at once Works offline — installable PWA, no connection needed after first load Public JSON API — free to use at /api/convert/m-to-ft.json No signup, no paywalls — just the tool I'd love your honest feedback. What categories or units are missing? What would make this your go-to converter? Try it at 👉