Terms of Use

The tools are free and provided "as is"

Charitools offers its tools free of charge. They are provided without warranties of any kind. Engineering calculators are aids for professionals — always verify results independently before using them in real designs or decisions. Charitools is not liable for outcomes from use of the tools.

Acceptable use

Use the tools lawfully. Don't attempt to disrupt the service, misuse other users' data, or upload content you don't have the right to process.

Accounts

You're responsible for keeping your account credentials secure and for activity under your account. You may delete your account at any time.

Intellectual property

Charitools and its branding belong to their owner. Content you create with the tools remains yours.

Advertising

The tools are currently ad-free. If advertising is introduced later, it will be disclosed and these terms updated.

Changes

We may update these terms as the service evolves. Continued use after changes means you accept them.

Contact

Email hello@charitools.com.