I×TInvoice × Tariff

Download the Desktop App — Windows / macOS / Linux

US Tariff Lookup for desktop puts the whole calculator on your machine: HTS search in English or Chinese, stacked MFN + China 301 + global 301 + Section 232 duties, MPF/HMF fees and landed cost. Data ships inside the app — fully offline, no sign-up.

Pick your platform

WindowsSize 76.5 MB
US-Tariff-Lookup-Setup-1.0.1.exe

Windows 10/11 (64-bit) installer. The build is unsigned: on a SmartScreen prompt choose More info → Run anyway.

Download
macOS · Apple SiliconSize 93.7 MB
US-Tariff-Lookup-1.0.1-arm64.dmg

Apple Silicon (M-series), macOS 11+. Unsigned dmg: right-click the app → Open → Open on first launch.

Download
macOS · IntelSize 98.1 MB
US-Tariff-Lookup-1.0.1-x64.dmg

Intel Mac, macOS 11+. Same first-launch steps.

Download
LinuxSize 103.1 MB
US-Tariff-Lookup-1.0.1-x86_64.AppImage

x86_64 AppImage: chmod +x once, then run — nothing to install.

Download

Checksums & signing

SHA256 digests for every artifact are in SHA256SUMS.txt attached to the release — verify before running. Builds are not code-signed yet, so your OS shows a one-time warning on first launch; that is expected. SHA256SUMS.txt

First time on desktop? The Tutorials walks you from download and checksum to your first lookup.

Not after a desktop app?

Browser extension (live on Edge Add-ons; Firefox/Chrome in review): look codes up next to any page. Open source

Developers can call the same engine from their own stack via the us-tariff-lookup npm package. npm install us-tariff-lookup

All versions & changelogs (GitHub Releases) · Desktop source repository (MIT)