Free
Free tools
Small tools for things companies deal with often. They calculate in your browser, no sign-up. If a tool sends data to a public registry, it says so. Some tools work with Czech registries and Czech law.
Tools
Bulk Czech company ID (IČO) check
Up to 100 Czech company IDs (IČO) at once in the ARES registry: name, address, VAT ID, company status and VAT registration. CSV export.
Open toolCzech late-payment interest calculator
Statutory late-payment interest under Czech law, based on the Czech National Bank (ČNB) repo rate, plus CZK 1,200 per invoice. CSV export.
Open toolEAN code checker
Checks the EAN and GTIN check digit, even hundreds of codes at once, and fills in the correct one.
Open toolWant this done automatically in your company?
A tool handles one calculation. When the same work repeats every day, we connect it to your systems. We start with a free 30-minute audit.