Free tools to clean phone numbers and lead lists
Clean and de-duplicate a CSV, format phone numbers to E.164, validate US and Canadian numbers, look up an area code and its time zone, split a list between inboxes or reps, pull emails out of text and guess an owner's address pattern.
Updated (the day rows in this list last changed). Counts as of 9 Nov 2026.
The 7 Phone & data cleanup tools
What is a small business owner's email address likely to be?
Type a name and a domain. Get about 30 likely addresses, ordered by how often each format shows up in the local-business emails 67Leads has found, with the pattern table by trade.Lead list cleaner and deduper
How do I clean and de-duplicate a CSV lead list?
Paste a CSV. Get it back with whitespace trimmed, emails lower-cased and syntax-checked, US phones in E.164, websites tidied and duplicate rows removed. Nothing you paste is stored.Phone number formatter (E.164)
How do I format US phone numbers to E.164 and spot invalid ones?
Paste up to 500 US or Canadian numbers in any format. Get each in E.164 and national format, the reason any number cannot be dialled, and which are toll-free.Email extractor
How do I pull every email address out of a block of text?
Paste text, HTML or a page's source. Get every email address found, de-duplicated, with image names, placeholders and no-reply addresses set aside and shared inboxes flagged. Nothing you paste is stored.Area code lookup
Where is an area code, and what time is it there?
Type an area code, a phone number or a state. Get the state or province, the main cities, the time zone and the overlay codes, and how many businesses 67Leads lists with that area code.Lead list splitter
How do I split a lead list between inboxes or sales reps?
Paste or upload a CSV. Split it into even parts, one per inbox or rep, or by a column such as state or city, with duplicates removed if you want. Download a zip of CSVs or one CSV with a part column. Nothing is stored.Phone number validator
Is a US or Canadian phone number valid, and where is it from?
Paste up to 50 numbers. Each is checked rule by rule (area code, exchange, fictional 555 numbers, toll-free and premium codes), placed by state, city and time zone, and given in E.164.
Questions
No. Pasted data is processed for that one request and not kept, and result pages are not cached or indexed.
Paste them into the phone number formatter. It returns E.164 (+12145550123) and flags numbers that cannot be valid.
Yes, with no account and no card. Lead counts and previews are free; contact details unlock when you export a list.
Other tool groups
Find leadsEmail deliverabilityCold email & call writingGoogle Business Profile & reviewsWebsite checksCalculators & planningFor web designersAll free tools