This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Cleaning a phone list before a campaign? Upload a CSV and get line type, carrier, and validity for every number in under 60 seconds. No code, no account, no subscription.
Hey everyone 👋
I'm Chris the CEO of Salesmsg. Building an SMS platform, we kept hitting the same wall: everyone needs to validate phone numbers, and every option asks for something absurd first. Code written against a paid API like Twilio Lookup, Numverify, or a sales demo, just to check a few hundred numbers.
None of that helps a marketer, sales rep, ops person, or founder sitting with a spreadsheet and a simple question. Is this number real? Will this list deliver?
So we built PhoneCheckr as a free phone formatting and validation tool.
Drop in a CSV and you get the same file back with line type (mobile, landline, VOIP, invalid), carrier, and country on every row.
What people are using it for so far:
- Cleaning imported lead lists
- Fraud-checking signups
- Filtering VOIP for TCPA compliance
- And settling the "is this real?" question on one-off numbers.
Sales / SDR
Clean your call list before a dialing sprint. Export from ZoomInfo or Apollo, drop landlines and VOIP, and dial only verified mobiles to protect your connect rate.
SMS Marketing
Send only to numbers that can receive texts. Filter landlines and VOIP before loading your list to Klaviyo, Attentive, or Twilio to protect your sender reputation.
Lead Gen / Marketing Ops
Only route leads with real mobile numbers to your SDR queue. Use line-type data to gate your dialer and stop blaming each other for bad phone data.
RevOps / Data
Enrich and clean your CRM phone data. Run a validation pass before any import or campaign. Under an hour for 1,000 records, under $10 for full enrichment.
Fraud / Trust & Safety
Block fake accounts using VOIP numbers. Detect VOIP at sign-up to prevent trial abuse and SMS bypass fraud with low false-positive rates on real users.
Small Business / Individual
Check any number in seconds, no upload needed. Get mobile, VOIP, or landline status plus carrier name for a single number without creating an account.
Give it a try. Upload a CSV of number and get them formatted to free.
Let me know what you think!
Bad number almost always someone actively choosing not to be called. Validating them treats boundary setting as typo. So we just optimize outreach to people who deliberatly lied to avoid us
About PhoneCheckr on Product Hunt
“Bulk phone validation & formatting”
PhoneCheckr was submitted on Product Hunt and earned 3 upvotes and 2 comments, placing #160 on the daily leaderboard. Cleaning a phone list before a campaign? Upload a CSV and get line type, carrier, and validity for every number in under 60 seconds. No code, no account, no subscription.
PhoneCheckr was featured in Sales (22.1k followers), Marketing (468.5k followers), No-Code (6k followers) and OpenAI Day (39 followers) on Product Hunt. Together, these topics include over 100k products, making this a competitive space to launch in.
Who hunted PhoneCheckr?
PhoneCheckr was hunted by Chris Brisson. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how PhoneCheckr stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Chris Brisson