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Tool feedback
Report a problem with a free tool
Tell us what went wrong, what the right answer should have been, or which calculator is missing. No account and no email address required — the report goes straight to the engineer who maintains the tools.
Process
What happens to your report
Every report is saved to our own database and reviewed by the engineer who owns the model behind the calculator. Nothing is published, and nothing is attached to a marketing list.
- It is stored with the tool you picked, the page you sent it from and the date — no IP address, no cookie and no account.
- It appears in the owner dashboard the moment it arrives, and again in the next working-day summary e-mail.
- If the model is wrong, the fix ships with a test that pins the corrected answer, so the same bug cannot return silently.
- If you left a reply address, we answer. If you did not, the report is still read.
Reports are kept while they are useful. The store is a rolling buffer — the oldest reports are deleted first when it reaches its cap — and you can ask us to delete yours at any time.
Detail
What makes a report easy to act on
A calculator bug is almost always one of three things: an input the form would not accept, a result that disagrees with a field solver or a datasheet, or a model used outside the range where it holds. Say which one you hit and the numbers you typed.
- The inputs you entered, including the units you had selected.
- The result the tool gave, and the value you expected instead.
- Where the expected value came from: a field solve, a coupon measurement, the fabricator's stackup drawing or a datasheet.
- For a request: the decision you are trying to make, not just the name of a calculator.
Please do not paste a netlist, a stackup drawing or any design file. A sentence and a few numbers are all the report needs, and the form is not a file-transfer channel.
FAQ
Common questions
No. The form asks which tool, what happened, and optionally an email address if you want a reply. There is no sign-in, no cookie and no tracking on the form itself.
Prefer to send it to a person?
A calculator report is triaged by the engineer who maintains the model. If it is really a question about your board, send the stackup and the interface list instead.