Zone file formatter and linter
Paste a zone file and get a checked, neatly aligned copy back.
InstantPlain English + technicalFree, no sign-up
About the Zone file formatter
Paste a BIND zone file to validate it, catch common mistakes like missing dots and CNAME conflicts, and get a tidy, aligned version.
Every result comes in two styles: plain English for everyone, and the exact technical detail for engineers, with the raw JSON one click away.