Contact
For corrections, privacy requests, business questions, or tool suggestions, contact the site owner by email.
We normally review site-related email within a few business days.
What to include
For a bug report, include the tool name, the browser you used, a short sample input if it is safe to share, and the result you expected. Do not send private API keys, passwords, tokens, or confidential customer data.
Content corrections
If a page explanation is unclear, outdated, or missing an important limitation, send the page URL and the correction you recommend. Practical examples are especially helpful.