9 free tools · no signup · runs in your browser
Free tools for cold outreach that lands.
The checks we run inside Leads Ranger every day, opened up for anyone: verify a list, fix your DNS, test a subject line, plan a campaign. Use them as often as you like; nothing you type is sent to us.
Deliverability
Land in the inbox, not the spam folder.
4 tools
Popular
Email Deliverability Checker
SPF, DKIM, DMARC and MX in one check, with the SPF 10-lookup count.
Use it free→Cold Email Spam Checker
Score a subject and body for spam triggers before you hit send.
Use it free→PopularSPF & DMARC Generator
Build valid SPF and DMARC records for your providers, with the lookup budget shown live.
Use it free→Subject Line Tester
Score a cold email subject and see exactly how a phone and a desktop inbox show it.
Use it free→Prospecting
Clean, real contact details before you send.
3 tools
Phone Number Formatter
Format numbers to E.164, check they are valid, and see if they are mobile.
Use it free→PopularEmail Verifier
Check up to 25 addresses for typos, disposable domains, role accounts and a working mail server.
Use it free→Email Permutator
Every likely address for a name at a company, ranked, with the domain checked.
Use it free→Outreach
Plan campaigns and open conversations.
2 tools
Free during the open pilot
Want these running on every email?
Leads Ranger verifies every lead, audits every mailbox, checks every campaign for spam and every number for WhatsApp, automatically.
No credit card required
Free during the open pilot