Have a question or feedback about one of our digital logic calculators? Whether a truth-table row looks wrong, a K-map group needs checking, an explanation could be clearer or you want to suggest a future computer science tool, use the form below.
When you submit the form, your message is sent directly to our support inbox. We review every submission and aim to respond as soon as possible. If your question requires additional details, we may follow up to make sure we fully understand the issue.
We do not store or share any information you submit through the contact form beyond what is needed to respond to your enquiry. Your privacy is important, and your message will only be used to assist you.
Most messages receive a reply within a short time, depending on the nature of the request. Feature suggestions and non‑urgent feedback may take longer to review, but every submission is appreciated and considered.
If you’re reporting a possible error, please include the calculator’s name, the values you entered, the result you got and the result you expected. If you can, mention the source you’re comparing against, such as a textbook, datasheet or another tool. This helps us check and fix problems quickly.