Vihsm Labs

Free tools for the rules businesses are racing to meet

E-invoicing mandates, AI rules and security problems have deadlines. These tools tell you where you stand in a minute, for free.

🔒 Everything runs in your browser. Nothing you enter or upload leaves your computer.

Compliance deadline radar

E-invoicing, AI, accessibility, privacy and security deadlines by country, each linked to its official source.

See the deadlines →

E-invoice checker

Drop a UBL or CII invoice, or a Factur-X/ZUGFeRD PDF. See which EN 16931 fields are missing and whether the totals add up.

Check an invoice →

Peppol ID builder

Turn a company or VAT number into the right Peppol ID, check its check digits, and learn how to find a buyer's Peppol ID.

Build a Peppol ID →

Hiring bias calculator

Selection or scoring rates and impact ratios by sex, race and both together: the numbers NYC Local Law 144 audits report.

Calculate impact ratios →

Leaked-key scanner

Built your app with Lovable, Bolt, Cursor or Replit? Check your own code for exposed OpenAI, Stripe or Supabase keys.

Scan my code →

AI disclosure generator

Plain-language "you're talking to an AI" notices for chatbots, voice agents and AI content, plus an EU AI Act Article 50 checklist.

Write my disclosure →

Need it fixed, not just checked? Vihsm builds and fixes these for a fixed price agreed before we start: invoice-to-e-invoice conversion, AI bias audits, app security fixes and AI transparency packs.

See services and prices