Contact

Have an idea for a tool, found a bug, or have a privacy question? Email hello@fibub.com.

Suggestions and bug reports are very welcome. Tell us which tool, what you expected and what happened. If we build your idea, we would love to thank you on our credits page; just say how you would like to be named, or that you would rather not be.

Please never send us the private file you were working on. If something went wrong, tell us the tool, the type and rough size of the file, and your device and browser. That is usually enough to find the problem.

Copyright and data removal requests

Each science tool lists where its reference numbers come from, under "Where the numbers come from". If you are an author, publisher or rights holder and want a value, table, credit or text changed or removed, email hello@fibub.com with the tool's name and what you would like us to do. We reply and act quickly, usually by removing or replacing the item while we look into it.