Practical software for legal work.
Hopen Corporation builds focused desktop tools for law practices — fast, private, and built to do one job exceptionally well.
Available now
SIDETRACK
Compare two Word documents and get a marked-up redline PDF — identical to Word's own Track Changes — in seconds. Private; runs on your desktop.
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For developers
CAUSEWAY
Open a Windows File Explorer folder straight from your web app. A tiny desktop agent bridges a browser signal to the files your users already sync from Dropbox, OneDrive, or Google Drive.
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In development
BINNACLE
Trademark docketing that builds itself. Paste your USPTO serial numbers and BINNACLE assembles your portfolio from USPTO TSDR — owners, marks, classes — and tracks every §8, §15, and renewal deadline. For in-house trademark counsel.
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Available now
DUI Pro
Web-based BAC simulation and retrograde-extrapolation software — model blood-alcohol over time and produce documented, litigation-ready reports.
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Additional focused utilities are on the way. Tell us what slows your team down.
Suggest a tool →Built for the way legal teams actually work
Desktop-first, privacy-respecting, and licensed simply — install, try it on real work, and subscribe only when it earns its place.