NEO UNIT CONVERTER
A loud, honest, neo-brutalist take on the unit converter. Thick black borders. Hard offset shadows. No gradients, no glassmorphism, no shy pastels. Just numbers that snap into place.
CONVERT EVERYTHING (except currency)
17 categories, 100+ units, all calculated locally:
• Length (km, m, mi, ft, in, nautical mile…)
• Weight / Mass (kg, lb, oz, stone, tonne…)
• Temperature (°C, °F, K, °R)
• Area (m², acre, hectare, ft²…)
• Volume (L, gallon US/UK, cup, fl oz…)
• Time (ms, s, min, hr, day, week, year)
• Speed (m/s, km/h, mph, knot, ft/s)
• Data Storage (B, KB, MB, GB, TB, PB)
• Energy (J, cal, kcal, kWh, BTU)
• Pressure (Pa, bar, psi, atm, mmHg)
• Power (W, kW, hp, BTU/h)
• Angle (°, rad, gradian, arcmin, arcsec)
• Fuel Economy (km/L, mpg US/UK, L/100km)
• Force (N, kN, lbf, dyne)
• Frequency (Hz, kHz, MHz, GHz, RPM)
• Torque (N·m, lb·ft, lb·in)
• Numeric Base (binary, octal, decimal, hex)
FAST AS A KEYPRESS
• Custom in-app keypad — no system keyboard popping in
• Live conversion as you type, both directions
• Tap either row to make it active and edit it
• Long-press any value to copy
• Hex keypad shifts to 0–F automatically when you're in Numeric Base
REMEMBERS WHAT MATTERS
• Pin entire categories to the top of the home grid
• Pin specific {from → to} pairs (e.g. "Weight: kg → lb")
• Auto-saves the last 50 conversions
• Tap a history entry to re-open with the same value pre-filled
• Recent searches stay one tap away
SHARE LIKE A POSTER
Export any conversion as a square brutalist card and send it via the system share sheet.
DESIGN
Built around a tight palette: ink black, paper off-white, sulfur amber, mint, rust, and a screaming red for errors. Heavy display typography. Snap transitions. Made for people who'd rather see numbers than swipe through onboarding.
FEATURES
• 17 categories, 100+ units
• Search by category, unit name, or symbol — fuzzy-tolerant for typos
• Pinned categories + pinned pairs
• Conversion history (last 50)
• Adjustable decimal precision (2 / 4 / 6 / 8)
• Group separator toggle
• Haptics toggle
• Quick Settings tile — launch the app from the notification shade
• Dark ink on a calm cream background, edge-to-edge
Brutalist unit converter — 17 categories, no fluff, fully offline.