Free lead database export tools: clean leads before they go in a sequence
No code. Drop in your Apollo, ZoomInfo or other lead export and get a deduplicated list with the vendor's own status kept.
Clean an Apollo, ZoomInfo, Lusha, RocketReach, Seamless.AI, Cognism, Hunter, Snov.io, Clay or Sales Navigator export before it goes into a sequence. The tools read each vendor's email and status columns, set aside addresses the vendor itself marked invalid (and, if you choose, catch-all or unverified ones), and remove duplicates. Lead data ages as people change jobs, so verify what is left before sending.
11 free tools
Apollo export email checker
Reads an Apollo CSV, counts its Email Status values, flags bad syntax, duplicates, dead and disposable domains, and sends the rows not marked Verified to a live mailbox check first.
ZoomInfo export to email list
Reads a ZoomInfo contacts CSV, keeps the main email and (if asked) supplemental emails, merges repeats, carries the Contact Accuracy Score through, flags role addresses, personal webmail, likely typos and emails on a domain other than the company website.
Lusha export to email list
Reads a Lusha CSV, uses the work email as the send address (private emails only when asked), reads an email confidence grade (A+ and A as verified, B and below as risky), merges repeats and flags role addresses, webmail and domain mismatches.
RocketReach export to email list
Reads a RocketReach list export, uses the recommended (professional) email as the send address, reads the email grade (A as verified, A- and B as risky, invalid set aside), merges repeats and flags role addresses, webmail and domain mismatches.
Seamless.AI export to email list
Reads a Seamless.AI CSV (Clean, Raw or Custom download), uses Email 1 as the send address, reads its validation (Valid as verified, Accept All as risky, Invalid set aside), carries the Total AI score, merges repeats and flags role addresses, webmail and domain mismatches.
Cognism export to email list
Reads a Cognism list CSV, reads an email quality or verified column (verified, unverified, invalid), sets aside invalid and role addresses, merges repeats and flags personal webmail, typos and emails on a domain other than the company website.
Hunter export to email list
Reads a Hunter leads export or bulk results CSV, reads Verification status (valid, accept-all, unknown, invalid), keeps the confidence score as written, sets aside invalid and role addresses, merges repeats and flags webmail, typos and domain mismatches.
Snov.io export to email list
Reads a Snov.io prospect list CSV or XLSX, reads Email status (valid, unknown, not valid), sets aside not-valid and role addresses, keeps Email 2 out unless asked, merges repeats and flags webmail, typos and emails off the company website's domain.
Clay table to email list
Reads a Clay table CSV, finds the work email column (personal email only when asked), reads a validation column (valid, catch-all, invalid), counts rows where enrichment found nothing, merges repeats and flags role addresses, webmail and domain mismatches.
Sales Navigator leads to email list
Reads a Sales Navigator lead list exported through your CRM or the enrichment tool that found the emails, reads its email status column (valid, catch-all, risky, invalid), merges repeats and flags role addresses, webmail and emails on a domain other than the company website.
LinkedIn connections to email list
Reads Connections.csv as LinkedIn exports it, skips the notes at the top, keeps the connections that shared an email and splits work from personal addresses.