All tools

> imprint

Legal notice

As of: 21 September 2026

Translation for your informationThis page is an English translation of my German legal notice (Impressum). It is provided for information only. Only the German version is legally binding.

01Provider

Information in accordance with Section 5 of the German Digital Services Act (§ 5 Digitale-Dienste-Gesetz, DDG):

Tassilo Wolfin
Liebermannstraße 10
39108 Magdeburg
Germany

02Contact

Email: kontakt@bnkz.de
Form: bnkz.de/en/wish

Something does not work? Write to the email address above, ideally mentioning your browser and device. Missing a tool? That is what the “Suggest a tool” form is for.

03Responsible for the content

Responsible within the meaning of Section 18 (2) of the German Interstate Media Treaty (§ 18 Abs. 2 Medienstaatsvertrag, MStV): Tassilo Wolfin, address as above.

04What is this site about?

bnkz.de is a private, non-commercial project. There are no ads, no paid features and no user accounts. The tools are free and will stay free. No goods or services are sold. That is why there are no general terms and conditions (AGB), and I do not take part in consumer dispute resolution proceedings.

05Liability for content

The tools and texts are built, checked and tested with care. Still, no warranty is given for correctness, completeness and constant availability. You use them at your own risk: Please check important results yourself, for example tax amounts or converted values, and always keep your original files. The calculators and texts do not replace tax, legal or professional advice.

I am responsible for my own content on these pages under the general laws (Section 7 (1) of the German Digital Services Act, § 7 Abs. 1 DDG). Liability for damage resulting from the use of the free tools is excluded, unless there is intent or gross negligence, or injury to life, body or health.

06Liability for links

In a few places this site links to other websites, for example to the projects of the free software it uses. I have no influence on their content. The respective provider is responsible for it. At the time of linking, no legal violations were apparent. If I become aware of a legal violation, I will remove the link immediately.

07Copyright

The texts, the design and my own program code on this site are subject to German copyright law. Files that you edit with the tools remain yours: They do not leave your device, and I do not obtain any rights to them.

08Free software & data

This site uses free libraries that are loaded from this domain: pdf-lib (MIT), pdf.js by Mozilla (Apache 2.0), qrcode-generator (MIT) and jsQR (Apache 2.0). The license texts are at /assets/vendor/LICENSES.txt. For the anonymous country statistics I use the database IP Geolocation by DB-IP (CC BY 4.0). “QR Code” is a registered trademark of DENSO WAVE INCORPORATED.