A Retentive QA tool for Klaviyo

Klaviyo email checker: catch the typo before your list does.

Retentive proofreads your Klaviyo emails the way a careful editor would, including the words inside your images that spell checkers cannot see. Turn on auto-check and every campaign you schedule is proofread before it sends, with an email alert when something is wrong.

  • Reads the text inside images
  • Auto-checks scheduled campaigns
  • Alerts that quote the typo

How to proofread a Klaviyo email before it sends

Check any email by hand in a minute, or let auto-check proofread every scheduled campaign for you.

  1. Step 1

    Connect Klaviyo

    Connect your Klaviyo account once. The checker lists your saved templates, draft campaigns and flows, ready to pick from.

  2. Step 2

    Pick the emails

    Select up to 10 templates, draft campaigns or flow emails and run one combined check. You can also upload an image of an email.

  3. Step 3

    Fix what it finds

    Every finding quotes the exact words, says where they are (subject line, preview text, alt text or email body) and suggests the fix.

Proofreading by eye vs the Email Checker

The typos that reach an inbox are rarely in the body copy you reread five times. They are in the places nobody reads twice.

Proofreading by eye

  • Spell checkers only see live text, never the words inside images
  • Subject lines, preview text and alt text get skimmed, not proofread
  • Every A/B variation needs its own read-through
  • A campaign scheduled for tomorrow gets no second look

With the Retentive Email Checker

  • The text inside every image is read and proofread
  • Subject line, preview text, alt text and body in one pass
  • Scheduled A/B tests checked variation by variation
  • Scheduled campaigns proofread automatically, with an email alert

Everything a careful proofreader checks, on every email

Reads the text inside images

Image-based emails carry their headline, offer and call to action inside images. The checker reads each image section and proofreads it like live text.

Auto-check for scheduled campaigns

Turn it on per brand. Once a campaign has sat scheduled for a few minutes, so an email you are still editing is left alone, Retentive proofreads it before its send time.

An alert that quotes the typo

When auto-check finds a spelling mistake, a broken link or image, or a suspicious link, the brand's alert recipients get an email that quotes the exact words, not just a count.

Back to draft in one click

From the report, one confirmed click sets the campaign back to draft in Klaviyo, so it cannot send while you fix it.

Every A/B variation

When auto-check proofreads a scheduled A/B test, each variation's subject line, preview text and body are checked, and the report says which variation a finding belongs to.

Links, images and alt text

Broken links, broken images, missing alt text and a missing unsubscribe link are checked on every run, alongside the copy review.

What the Email Checker reviews

One check covers the words and the plumbing of the email.

CheckWhat it catches
SpellingTypos in the subject line, preview text, alt text, live text and the text inside images
Grammar and copyGrammar mistakes and weak or unclear copy, with a suggested rewrite
ConsistencyProduct names and calls to action that say one thing in one section and something else in another
LinksBroken links and suspicious links
ImagesImages that fail to load and images with no alt text
ComplianceA missing unsubscribe link

Frequently asked questions

Can a spell checker read the text inside email images?

Browser extensions and editor spell checkers only read live text. Image-based emails put headlines, offers and calls to action inside images, where those tools cannot see them. The Retentive Email Checker reads the text in each image section and proofreads it like live text.

How do I proofread a scheduled Klaviyo campaign automatically?

Turn on auto-check for the brand in the Email Checker. Retentive watches the Klaviyo account for scheduled campaigns and proofreads each one before its send time, once it has been scheduled for a few minutes so an email still being edited is not checked.

What happens when auto-check finds a typo?

The brand's alert recipients get an email that quotes the exact words and the suggested fix. The full report is one click away, and from it you can set the campaign back to draft in Klaviyo so it does not send. Setting a campaign to draft needs a Klaviyo key that can modify campaigns (Full Access or campaigns:write).

Does it check A/B test variations?

Yes, on scheduled campaigns. When auto-check proofreads a scheduled A/B test, every variation's subject line, preview text and body are checked, and each finding names the variation it belongs to.

Can it check flow emails, not just campaigns?

Yes. Pick one or more flows and check their email messages, or pick saved templates and draft campaigns. Auto-check covers scheduled campaigns; flow emails are checked when you run them.

What does it check besides spelling?

Grammar, weak copy, product names and calls to action that do not match across sections, broken or suspicious links, broken images, missing alt text and a missing unsubscribe link.

Does auto-check cost extra?

Each check uses one AI credit from the account's monthly allowance, the same as a check you run by hand. When the credits run out, auto-check pauses instead of billing more.

Let the checker read it before your list does.

The Email Checker ships inside Retentive, next to the Slicer, the link checker and Klaviyo analytics. One Klaviyo connection powers all of it.

About the Retentive Email Checker for Klaviyo

The Retentive Email Checker is a proofreading and QA tool for Klaviyo emails. It checks spelling, grammar and copy in the subject line, the preview text, the alt text, the live text and the text inside images, and it verifies links, images, alt text and the unsubscribe link in the same pass.

It answers a problem specific to ecommerce email: most brand emails are built from images, and the words inside an image are invisible to every spell checker that works on live text. The checker reads each image section, so a typo in a hero banner or a button graphic is found the same way a typo in a paragraph is.

Emails can be checked by hand, up to 10 at a time, from saved templates, draft campaigns, flow emails or an uploaded image. With auto-check turned on, every campaign scheduled in the connected Klaviyo account is proofread before it sends. When a check finds a spelling mistake, a broken link or image, or a suspicious link, the brand's alert recipients get an email quoting the problem, and the report offers a confirmed one-click action that sets the campaign back to draft in Klaviyo.

The Email Checker is one tool inside Retentive, a Klaviyo intelligence platform for email, retention and lifecycle marketers. The same connection powers the Klaviyo Email Slicer, the link and discount code checker, revenue diagnosis and campaign and flow analytics.