Free tools
Free tools
Small utilities we built because we needed them. No signup, no email, nothing stored.
Free, instant, and genuinely useful. If a tool here saves you an afternoon, that is the point.
Email domain readiness checker
Check MX, SPF, DKIM and DMARC in a few seconds. Catches the failures that break silently: two SPF records, more than 10 DNS lookups, a DMARC policy that does nothing.
In progress
- Cold email volume calculator: how many sends per day your inbox count actually supports
- Cold email grader: paste a draft, get it critiqued against deliverability and relevance rules
- ICP extractor: the inferred customer profile from a pitch deck
Prefer the reading? The outbound guides cover deliverability, ICP, sending volume and what AI SDRs actually cost.