Free Tools

10 free B2B utilities, one workspace.

Verify emails, inspect MX records, look up any domain — with the same infrastructure that powers Prospct.io.

Check if any email address is valid in one click.

Instant syntax, MX record and disposable-domain checks. Verify one email at a time — or unlock 5K verifications free inside Prospct.

See who's behind any B2B domain in seconds.

Pull company profile, tech stack hints and public contact patterns from any domain — no login required.

Inspect a domain's mail exchange records.

See MX priority, mail provider (Google, Microsoft, custom) and catch-all likelihood — the fastest way to size deliverability risk.

Guess the most likely email format for any company.

Enter a domain and get the top email formats used at that company, ranked by frequency in Prospct's 300M-contact graph.

Detect the tools any company runs.

See CRM, marketing automation, analytics, and infra vendors detected on any public domain — powered by the Prospct signals engine.

Audit any domain's email authentication.

Parse SPF, DKIM and DMARC records and get a plain-English risk grade — plus recommended fixes.

Search company details by name or domain.

Firmographic snapshot: employee count, industry, HQ, funding, and signals — from Prospct's identity graph.

Generate every possible email pattern.

Enter a first name, last name and domain; we generate 30+ common permutations you can verify in bulk.

Find a prospect's LinkedIn profile from an email.

Reverse-lookup a work email to surface the most likely LinkedIn profile — accurate to 92% in Prospct benchmarks.

See what a recipient's inbox already knows about you.

Analyze open/click history, sender reputation and reply patterns for any address in your Prospct workspace.

Need more than a free tool?

Prospct gives you 300M contacts, signals and CRM sync in one workspace.