Productivity
HTML · browser app
Universal Unit Converter
Nine categories, exact factors, every unit at once.
What you get
Length, mass, temperature, volume, area, speed, time, data and pressure. Type a value and see the conversion plus every other unit in the category. Copy the result and it lands in your history.
Highlights
- Nine categories, dozens of units
- Temperature handled with real formulas
- See all units in the category at once
- Swap units, copy result, recent history
- Exact factors where defined
- No ads, no tracking, works offline
Format & delivery
Delivered as a HTML · browser app. Open it in any modern browser — no install, no account, no server. It works offline, and the file is yours to keep.
Immediately after your Lightning payment settles, the download link appears at checkout. No account, no email, no waiting for a message.
How buying works
Pay from any Lightning-enabled Bitcoin wallet. The checkout creates an invoice for the fixed USD price and unlocks the file when the payment settles. An on-chain fallback is available. If you do not have Bitcoin yet, the no-card guide explains the shortest route.
Category: Productivity · Product ID: universal-unit-converter
