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Support PRAXAO

Every PRAXAO tool is free, with no account and no limits. If they save you time, a voluntary contribution helps keep them free, accurate and available in five languages.

Contributions are temporarily unavailable. Thank you for your interest!

A voluntary contribution

This is neither a purchase nor a subscription: the tools stay the same for everyone and nothing renews automatically. Payments are processed by PayPal; PRAXAO never sees your card or bank details.

What it pays for

Hosting, new tools, translations, and keeping calculations up to date with tax rules.