1,000 records free every month, plus 5,000 more when you first connect your CRM. No credit card.
Email preview
Hi Jennifer, we thought you’d love this. you’ll love this.
Fixed in your list. Original saved.
Hi JENNIFER, we thought you’d love this. you’ll love this.
ALL CAPS, straight from a checkout form.
Hi Jennifer, we thought you’d love this. you’ll love this.
Fixed in your list. Original saved.
Hi mckay, we thought you’d love this. you’ll love this.
All lowercase, from a lead form.
Hi McKay, we thought you’d love this. you’ll love this.
Fixed in your list. Original saved.
Hi , we thought you’d love this. you’ll love this.
Blank. Your flow opens with “Hi ,”
Hi Jane, we thought you’d love this. you’ll love this.
Filled in by Name Enricher from the email address.
Hi SARAH JOHNSON, we thought you’d love this. you’ll love this.
A full name jammed into the first-name field.
Hi SARAH JOHNSON, we thought you’d love this. you’ll love this.
Held for your review. We ask instead of guessing.
OriginalCleanedStatus
JENNIFERJenniferFixed
mckayMcKayFixed
(blank) · jane.doe123@gmail.comJane✅ Enriched
SARAH JOHNSONSarah JohnsonNeeds review
Review 1
Works with
Google Sheets
CSV
GMass
GHL
Trusted by
AutoRentals.com
Jennifer
The name she actually uses.
Digital hospitality
The feeling when someone gets your name wrong.
You send email, so you’re naturally thinking about retention and engagement. Fair. Now stop being a marketer for five minutes and take the other seat at the table. You’re the subscriber, and this is your place card.
Let’s at least get the name right. For crying out loud, it’s called digital hospitality.
Why do I need this?
Get the name right. Up to 40% higher conversion rate?1 Sure. But even better?
Make your subscribers feel like you value their attention. And it’s the least you can do, hospitality-wise, for your audience.
40%higher conversion
Personalized messages converted 40% higher than messages without personalization.1
1Klaviyo BFCM report: messages with personalized, dynamic content had a 40% higher average order conversion rate and a 17% higher average click rate than messages without it.
Y
Your Storenow
We thought you’d love this
Hi Jennifer, we thought you’d love this. Our new season just landed and…
What she’s thinking
“Oh, this one’s for me.”
Yeah but…
Can’t AI do this for me?No. Not as well as this.
(We only know because we spent a year trying)
In the last 12 years, we've personally scanned and cleaned by hand over a million lines of Google Sheets, cleaning first names manually in order to provide better hospitality for our clients and audiences. (And yes, it deeply helps conversion and retention.)
In the last 12 months, we’ve tested every level of frontier model against millions of other rows of names. Not because we wanted to build this app, but because we wanted the first names to be cleaned and extracted where they didn’t (but could) exist, i.e. (sharon.jones@email.com)
AI models worked great at the majority of the lists, but we spent just as many hours cleaning up hallucinations and mistakes. So we built this app for just us to use, and tested it against millions of contacts until it outperformed AI every time.
And the best part about keeping AI out of it is that it never exposes anyone's contact information to any LLM
Behind every row
Every row in your list is somebody.
Each of these people typed their name into a form once. Here’s how it came out the other side, and how they’d write it themselves.
Stored as JENNIFER, written as Jennifer
Checkout form, typed on a phone
Stored as mckay, written as McKay
Lead form, all lowercase
Stored as Za'Rina, written as Za'Rina
CRM export, apostrophe mangled
Name Enricher (Pro)Stored as (blank) · jane.doe123@gmail.com, written as Jane
Newsletter popup, email only
Digital hospitality
Remember the last time a host greeted you by name?
That small moment is the whole job of the first word in your email. Get it right, and the rest of the message reads like it was written for them.
Securely connect Klaviyo, HubSpot or Mailchimp, or drop in a CSV. Your list stays yours: protected, and never sent to an AI model.
2
Scan any list or segment
Every profile is corrected in moments. The cases that need judgment are held for your review.
3
Correct each name with one touch
Approve in bulk or one at a time. On paid plans, restore any change in one click from your Klaviyo account.
Name Enricher (Pro)
Enrich your email addresses with no first name.
Same exact process: obvious ones are added, questionable ones are flagged for your review.
Email preview
Hi Jane, we thought you’d love this.
(blank) · jane.doe123@gmail.comJane✅ Added
(blank) · info@acme.com—Flagged for review
No AI. No exceptions.
Your customers’ names never touch AI.
Not a third-party model like OpenAI or Anthropic, and not one of our own. Your contacts are never sent to OpenAI, Anthropic, or any other AI provider, and never used to train a model.
The barista test
They heard your name once, over an espresso machine, and still wrote it right.
Your subscriber typed theirs into a form. You have it in writing. Treat it with at least the same care.
14-day free trial on paid plans. Card required. Cancel anytime.
Questions we hear a lot.
Everything people ask before they connect a list. Still stuck? Talk to us.
The basics
What does First Name Cleaner do?
It finds the broken first names in your Klaviyo, HubSpot or Mailchimp list (ALL CAPS, all lowercase, full names in the first-name field, junk values) and fixes them in the list itself. Anything uncertain is held for your review, so nothing gets guessed.
Why does the first name matter so much?
It’s the first word of most emails and texts you send. When it reads “Hi JENNIFER S,” or “Hi ,” the message looks like a mass blast, and people stop reading. Personalization only pays when the name is right: in Klaviyo’s BFCM report, messages with personalized, dynamic content had a 40% higher average order conversion rate (Klaviyo).
What kinds of broken names do you fix?
ALL CAPS (JENNIFER → Jennifer), all lowercase (mckay → McKay), stray characters and emoji, and codes left behind by CRM exports (Za'Rina → Za'Rina). Full names in the first-name field, titles like “Ms.”, and junk like “test” are held for your review.
What happens to names you’re not sure about?
They’re held for your review instead of changed. A name we can’t fix with confidence is flagged, and a blank we can’t fill honestly stays blank and flagged. We never write a guess to your list.
Can you fill in missing first names?
Yes, with Name Enricher, included in Pro and up. When the email address clearly contains a name (jane.doe123@gmail.com → Jane), it adds it. When it doesn’t (info@acme.com), the contact is flagged for your review.
Compared with the tools you already have
Why not just use =PROPER() in Excel or Google Sheets?
PROPER capitalizes the first letter of every word, and that’s all. “mckay” becomes “Mckay”, “SARAH JOHNSON” becomes “Sarah Johnson” and is still a full name in a first-name field, “test” becomes “Test”, an email address becomes “Jane.Doe123@Gmail.Com”, and a blank stays blank. It also means exporting your list, cleaning a copy, and re-importing it, and the list is messy again as soon as new contacts arrive. We fix the names in the list itself.
How do I fix first names in Klaviyo without exporting a CSV?
Connect Klaviyo with an API key. First Name Cleaner scans the list or segment you choose, shows you every change, and writes the ones you approve straight back to the profiles. No export, no spreadsheet, no re-import.
Doesn’t Klaviyo fix capitalization already?
Klaviyo’s personalization tag can display a name in title case (Klaviyo help), and its data-transformation add-on, part of Advanced KDP, can write a capitalized copy to a new property while leaving the original unchanged (Klaviyo help). Neither fixes a full name in the first-name field, a title, or an email address sitting where a name should be, and neither holds the uncertain ones for review. We fix the first-name field itself.
Can’t HubSpot do this?
HubSpot can fix capitalization formatting automatically on Data Hub Professional or Enterprise (HubSpot knowledge base). First Name Cleaner works on any HubSpot plan, and it handles more than capitalization: full names in the first-name field, titles, junk values, and the uncertain cases held for your review.
What about Mailchimp’s TITLE merge tag?
Mailchimp’s *|TITLE:FNAME|* changes how the name is displayed in that one email (Mailchimp merge tag cheat sheet). The stored name stays broken everywhere else it’s used. We fix the record itself.
Why not just do this in ChatGPT?
You can, for a few hundred names. But it means pasting your customers’ names into an AI tool and copying the results back by hand, one batch at a time. First Name Cleaner never sends your contacts to an AI model, and it writes the clean names back to your list for you.
Why not use Insycle or a full CRM data tool?
Insycle is built for data teams standardizing every field across systems. If that’s you, great. If you’re a marketer who just wants the first name to be right, that’s us. Insycle starts at $100 a month, billed annually, and has no Klaviyo connector.
Safety and privacy
Will this mess up my existing data?
No. Before we write anything back, we show you a full preview of every change. Your original values are saved before anything changes. You approve in bulk or record by record. We don’t delete anything. On paid plans, restore any change in one click from your Klaviyo account.
Can I undo a change?
Yes. Every original value is backed up before anything changes. On paid plans, restore any change in one click from your Klaviyo account.
Do you use AI?
No. Your contacts are never sent to OpenAI, Anthropic, or any other AI provider, and never used to train a model.
How do you connect to my CRM, and is it secure?
You connect Klaviyo with an API key, or link your HubSpot or Mailchimp account, or upload a CSV. Your list stays yours, and every original value is saved before anything changes. See our privacy policy for exactly how your data is handled.
What if my list has names in other languages?
We handle Latin-script names across major languages, including hyphenated names, apostrophes, and accents. Names in non-Latin scripts (Arabic, Chinese, Japanese, Korean, Cyrillic) we leave exactly as we found them rather than guess.
Plans and pricing
How much does it cost?
1,000 records are free every month, plus a one-time 5,000-record bonus when you connect Klaviyo, HubSpot or Mailchimp. After that: One-Time Clean at $5 flat per file (up to 50,000 rows), Pro at $49/month, List Intake Monitor at $99/month (Klaviyo only), and Agency at $199/month (Klaviyo only). 14-day free trial on paid plans. Card required. Cancel anytime.
What about new contacts that come in broken?
That’s the List Intake Monitor. It cleans new Klaviyo profiles automatically as they arrive from forms, checkouts, lead ads and imports, so you set it up once and stop thinking about it.
Can agencies use it for multiple clients?
Yes. The Agency plan connects up to 10 Klaviyo accounts and includes white-label reporting.
Do I need an account for a one-time clean?
No. Upload a CSV and get a clean CSV back, no account needed.
Trying to make the digital world more hospitable, one first name at a time.
Every email you send, the right name.
No more “Hi JENNIFER,”. Your flows and your outreach fire with the name your customer actually uses.
1,000 records free every month, plus 5,000 more when you first connect your CRM. No credit card.
Your privacy choice
We set a first-party cookie and load Google and Meta measurement tools so we can see which campaign brought you here and, if you sign up, connect it to your account. Nothing is set until you choose, and you can change your mind at any time under Privacy choices. Privacy notice
