Portugal and Europe
Portuguese NIF Generator and Validator
Generate and validate mathematically valid Portuguese NIF numbers for testing.
Open tool →5 Tools
Portugal and Europe
Validate Portuguese and European formats and plan dates and time zones for international projects.
Test formats used in Portugal and the European Union.Validate check digits without querying official databases.Plan schedules across Brazil, Portugal and other time zones.
Portugal and Europe
Portuguese NISS Validator
Check the format and check digit of a Portuguese NISS.
Open tool →Portugal and Europe
IBAN Validator
Validate IBAN structure and MOD-97 checksum for multiple countries.
Open tool →Portugal and Europe
European VAT Format Validator
Check country prefix and basic format of European VAT numbers.
Open tool →Portugal and Europe
Portugal Business Day Counter
Count business days using Portuguese national holidays calculated by year.
Open tool →How to choose the right tool
Start with the result you need, use fictional data whenever possible and review output before applying it to a real system. These related pages are organized so you can move from preparation to execution and validation without switching between many platforms.
Privacy and performance
The portal prioritizes in-browser processing. Tools that handle large files may use significant memory, so test with a copy and keep the original file safe.