TL;DR Eliminated the daily copy-paste circus for professionals looking up company IDs. Built a Chrome extension that automatically detects company registration numbers on any webpage and provides instant one-click access to company information portals.
“I hate having to first search for company IDs on websites, then copy them, and finally look them up on virk.dk or proff.dk”
— Amalie, Accountant
This daily frustration isn’t unique to my wife. Accountants, lawyers, business analysts, and journalists waste countless minutes daily on this tedious manual workflow: hunting for company IDs on websites, copying them, navigating to lookup sites, pasting, searching. Repeat. All. Day. Long.
Company ID Autolink solves this. The Chrome extension automatically detects all company registration numbers on any webpage and transforms them into instant gateways to company information. No more hunting. No more copying. No more tab juggling.
Automatic detection on any webpage
All CVRs collected in one click
The extension uses smart pattern matching with modulo-11 checksum validation to ensure accuracy. It distinguishes between 8-digit CVR numbers and phone numbers through contextual analysis. Dynamic content? Handled with MutationObserver. Privacy? Everything runs locally—no data leaves your browser.
Native Danish interface
Copy to clipboard with one click
One click to Virk.dk. One click to Proff.dk. One click to clipboard. That’s it. The extension does one thing and does it well. Oh, and I built it in one evening using AI-assisted coding—proof that with the right tools and mindset, you can ship solutions that actually matter.