Fast, privacy-friendly online tools. No install, no sign-up.
Get a disposable inbox to receive verification emails without exposing your real address.
Trace delivery hops and understand SPF, DKIM, DMARC, delays, and suspicious header mismatches.
Audit MX, SPF, DMARC, DKIM, MTA-STS, TLS reporting, and BIMI records with actionable guidance.
Analyze DMARC aggregate XML or ZIP reports locally to find authentication failures and unknown sending sources.
Expand SPF include and redirect dependencies, count DNS lookups, and detect loops, void results, and unsafe policies.
Send a real test message and inspect authentication claims, delivery route, MIME quality, and message structure.
Convert Word, Excel, PowerPoint, and OpenDocument files to PDF with a private server-side engine.
Reduce PDF file size with server-side Ghostscript and qpdf processing while preserving a valid, downloadable document.
Repair damaged PDF structure with qpdf or a deeper Ghostscript rewrite, then validate the recovered file.
Flatten forms and annotations into stable page content for sharing, printing, and archiving.
Remove document information and XMP metadata from a PDF before sharing it.
Create a new PDF from selected pages and ranges while preserving the original document.
Rotate selected PDF pages by 90, 180, or 270 degrees and validate the result.
Convert color PDF pages to grayscale for printing and monochrome workflows.