YOUR EMAIL. THEIR INBOX. NO SURPRISES.

See your email.
Before you
send it.

You made something worth opening. See it in real Gmail, Outlook and Apple Mail clients — then let AI Visual QA scan every completed screenshot for the alignment, spacing and rendering details that are easy to miss.

Free plan. No credit card needed.

Real clients.Real peace of mind.
vision-preview.com
Your next great campaignEXAMPLE
Welcome to something good.Launch campaign · Version 1Light & dark
Apple Mail
goodthings®

Good things.
In your inbox.

A brighter everyday.

Discover more ↗
Every shade. Considered.
Illustrative workspace and example email, not captured results.

One email. The inboxes that matter.

GmailOutlookApple Mail Desktop Mobile Dark mode

GOOD DESIGN DESERVES A SECOND LOOK

A beautiful email.
In more than your editor.

A broken layout. A disappearing logo. A button you can barely read. Catch the details your subscribers would notice — while there’s still time to fix them.

The actual client.
The actual picture.

See screenshots from real email applications, including Outlook’s Word rendering engine. Your email’s layout, as the client renders it.

Explore client coverage

Dark mode.
Nothing left in the dark.

Check supported light and dark variants side by side. See how each client handles your colours, contrast and images.

Your team.
One clear sign-off.

Keep proofs, comments and approvals together. Share a client review link, mention your teammates and make the final decision on the exact version.

Bring the review together

THE LITTLE DETAILS. THE BIG DIFFERENCE.

Same email.
Different inbox.
Now you know.

Not a browser approximation. These are actual screenshots from our preview service. Switch the client, compare light and dark, and see what changes.

Our own demonstration email, captured 5 October 2026. No customer data. Saved screenshots, not a live render.

Now see how your email renders

A SECOND SET OF EYES, ACROSS EVERY RENDER

Catch what’s easy
to miss.

Finished checking one screenshot, only to miss the gap in another? Click Run AI QA Checks and Vision Preview reviews all successful screenshots for that version together.

  • One click. Every completed capture.

    Review desktop, mobile, light and dark screenshots in a single on-demand check.

  • Find the render that needs attention.

    Surface likely alignment, spacing, clipping, overflow, awkward wrapping and broken-image issues with the affected client named.

  • You make the final call.

    Use clear findings as a review aid, then inspect the original screenshots and approve when your team is satisfied.

Try AI Visual QA free

AI findings are advisory and can miss issues. They do not change the 100-point Pre-Checks score or replace human review.

AI Visual QA3 TO REVIEW
ALL COMPLETED CAPTURES REVIEWEDThree visual details deserve a closer look.

Check the affected screenshots before approving this version.

Gmail Desktop ReviewedOutlook Dark ReviewedApple Mail iOS Reviewed
OUTLOOK DARKHIGH

Button text may be clipped

The final character sits unusually close to the button edge. Check the original capture and increase horizontal padding if needed.

APPLE MAIL iOSMEDIUM

Unexpected gap below the hero

Spacing is visibly larger than in the other reviewed captures.

Illustrative AI QA report, not a customer result. Findings vary with each email and its completed captures.

FROM FIRST PROOF TO FINAL SIGN-OFF

Make “ready to send”
unmistakable.

The proof. The conversation. The go-ahead. Bring them together, so nobody has to guess which version got the final yes.

  • Approve the version. Not the guesswork.

    An organisation member marks the exact version production-send ready. Generate a new version, and it needs its own sign-off.

  • Keep the conversation with the proof.

    Share a public link to captures, Pre-Checks and comments. Clients can add their name and leave feedback without creating an account.

  • Mention a teammate. Bring them back.

    Tag an organisation member in a comment. A branded HTML email brings the comment and a direct link to that version’s discussion to their inbox.

Bring your next review together

Approval is your team’s decision, even while other captures are pending. It never sends the email or guarantees delivery. Anyone with the public link can see the shared discussion; only organisation members can approve.

Spring launchOne version. A shared perspective.Version 3
VERSION SIGN-OFFProduction send readyApproved by Maya · Version 3
JL

Jordan Lee Guest

The mobile layout looks great. @Maya, can we make the button label a little clearer?

M

Maya Team member

Updated the HTML and generated this version. The button now says “Explore the collection”. Ready from our side.

Mention notifications include the comment
and a link straight back to the discussion.
Fresh version. Fresh review.Approval never carries over automatically.
Illustrative review workspace and example conversation, not customer activity.
THE HTML BUILDER

Change the HTML.
See the difference.

Your code on the left. A live desktop or mobile view on the right. Edit with HTML & CSS IntelliSense, reveal table borders and click a visual block to find its source.

email.htmlMobile · 375 px
<table role="presentation">  <tr>    <td class="message">      Hello, beautiful.    </td>  </tr></table>
goodthings®
Hello,
beautiful.

A little more care.
A much better send.

Explore the collection ↗
Illustrative editor. The live browser view is an editing aid, not a real-client capture.
  • Custom viewport widths & adjustable editor panes
  • Responsive desktop & mobile views, with block-to-code navigation
  • Save a draft. Generate fresh real-client proofs.

Saving a draft is free. Generating a new version uses your normal preview allowance; existing captured versions stay unchanged.

ACTIONABLE PRE-CHECKS

Less hunting.
More fixing.

Get a transparent 100-point checklist for HTML, links, assets, sender configuration and content signals. See every deduction, filter real issues and jump from supported HTML findings to the code.

A clearer path to send-ready.
  • 88 earned
  • 7 deducted
  • 5 unverified
!Image alternative missingAdd descriptive alt text for this image.HTML ↗
?Sender evidenceUnverified is kept separate from passed.
Illustrative report. Your score reflects your email and the evidence available.
  • Issues first, with clear next steps
  • Automatic eligible link, image & sender checks
  • Read-only Pre-Checks on shared proof links

Checks run when you open the private Pre-Checks tab. The score is a checklist, not an inbox-placement prediction or a spam-engine verdict. Missing evidence is never counted as a pass.

FITS THE WAY YOU ALREADY WORK

Send. Review. Approve.

From your email platform to a clearer team decision.

  1. 01

    Choose your campaign’s clients.

    Create a folder, choose its email clients and copy its unique test address or reusable API token.

  2. 02

    Send your email. Your way.

    Send a test from your email platform, or submit HTML through the API. Review each screenshot as it arrives.

  3. 03

    Bring the review to a clear yes.

    Refine in Builder, review Pre-Checks and collect comments. When your team is happy, mark that version production-send ready.

Use your existing email platform. If it can send a test email, it can send one to Vision Preview.

MADE FOR THE REAL INBOX

The clients your
design needs to meet.

Desktop, mobile and webmail, with light and dark variants where supported. Clear labels tell you exactly what produced each preview.

Gmail

  • Desktop web Light
  • Android 14 Light + dark

Outlook

  • LTSC 2024 Light + dark
  • Outlook on the web Light + dark
  • Android 14 Light + dark

Apple Mail

  • iOS Light + dark
  • macOS Light + dark
What about classic Outlook, Outlook 2016–2021 and New Outlook?

Classic Microsoft 365 Outlook and Outlook 2016, 2019 and 2021 currently display the Outlook LTSC 2024 capture as a labelled Word / mso engine reference. New Outlook displays the labelled Outlook on the web capture. These are shared-engine references, not separate captures of each version. Android applications run on Android emulators; Apple Mail runs on Apple hardware. Coverage can change; your folder’s client list is the current source of truth.

FOR THE PEOPLE WHO BUILD THE EMAILS

Your workflow.
Meet your preview API.

Take email testing from a manual step to part of your process. Submit your HTML, use your folder’s chosen clients, then poll for the screenshot URLs. Continue the review in the same Builder, Pre-Checks and Comments workspace.

  • One reusable bearer token per folder
  • Saved folder defaults, or a selected subset
  • A preview ID and a ready-to-copy polling command
  • Image URLs as each preview becomes available
Build it into your workflow

API submissions use your organisation’s preview allowance. Enable the example’s clients in your folder before submitting.

POST /api/v1/previews
curl https://vision-preview.com/api/v1/previews \
  -H "Authorization: Bearer $FOLDER_TOKEN" \
  -H "Content-Type: application/json" \
  --data '{
    "emailHTML": "<h1>Hello, beautiful.</h1>",
    "emailClient": {
      "gmail-web": true,
      "applemail-ios": true,
      "outlook-ltsc": true
    }
  }'
RESPONSE
{
  "previewGUID": "your-preview-id",
  "previewPollCurl": "curl ..."
}

A PLAN FOR YOUR NEXT GREAT SEND

Start free. Grow from there.

One plan for your organisation. A shared allowance for your team.

The whole review workflow. On every plan. HTML Builder Pre-Checks AI Visual QA Shared comments Version approvals

Free

Your first step to a better send.

Free

See current render allowance

1 AI QA check per month

Start free
  • Hourly allowance loads below
  • Supported light & dark modes
  • Folders and team access
  • Email and API submission

Basic

For a regular testing rhythm.

See pricing

See current render allowance

10 AI QA checks per month

Get started
  • Everything in Free
  • Hourly allowance loads below
  • Shared organisation allowance
  • Monthly subscription

Enterprise

A conversation about your needs.

Let’s talk

Volume and limits agreed with you

Unlimited or custom AI QA checks per month

Talk to us
  • Real-client preview workflow
  • Discuss your testing volume
  • Organisation-wide access
  • Managed, invoiced billing

Paid-plan prices and allowances load from our current billing catalogue. View your plan in the app.

One preview means one selected email client in one appearance. Light and dark each use one render. Automatic retries are free. AI Visual QA runs only when you click its button: one run reviews the completed screenshots for one version, and running it again uses another AI QA check. Allowances are shared across your organisation; hourly limits use a rolling 60-minute window. Monthly allowances do not roll over. Enterprise limits are agreed in your contract. Prices, when shown, are in USD; final charges are shown before purchase.

A FEW THINGS YOU MIGHT BE WONDERING

Good questions.
Clear answers.

Something else on your mind?
Let’s talk

Are these real email-client screenshots?

Yes. The interactive gallery contains actual captures of our own demonstration email, generated by Vision Preview on 5 October 2026. They are saved examples, not live renders or customer data. The workspace illustration at the top of this page is an illustrative mockup. Preview jobs capture your email inside the actual supported application: Apple Mail on Apple hardware, Android apps on Android emulators, and desktop and webmail clients in their respective environments. Where several Outlook labels share a capture, the results identify the underlying client and engine.

Can clients review without creating an account?

Yes. Share a public proof link so clients can view the captures, read Pre-Checks and leave comments. Guests enter a name, are labelled Guest, and can mention organisation members without seeing their email addresses. Mentioned members receive a branded email linking to the discussion. Anyone holding the link can see the shared comments and names, so do not use it for private team notes. Public guests cannot approve a version.

What does “production send ready” mean?

It records an organisation member’s approval of that exact version. Your team can approve even if some captures are pending or failed, based on the clients and requirements that matter to you. A newly generated version does not inherit the previous approval. This is a human sign-off—not an automatic send, a guarantee that every check passed, or a deliverability certification.

Does the Builder replace real-client previews?

No. Its live browser view helps you edit HTML quickly, check responsive layouts and navigate from a visual block to its code. Save a private draft, then choose Generate previews to capture a new version in real email clients. Original proofs stay unchanged, and generating that new version uses your normal preview allowance.

What does the Pre-Checks score tell me?

It is a transparent 100-point checklist for supported HTML, link, asset, sender and content checks. Earned, deducted and unverified points are shown separately. Opening the private Pre-Checks tab runs eligible public link/image and sender checks, reusing recent results. Supported HTML findings can take you to their source. Sender authentication needs evidence from the actual sending platform; DNS records alone do not prove authentication. This is not an inbox-placement probability, SpamAssassin test or blocklist assessment. Public visitors see the available report without triggering external checks.

What counts as an AI QA check?

One click on Run AI QA Checks reviews all successful screenshots currently available for one email version and uses one check from your organisation’s monthly allowance. It never runs automatically. If a capture failed, the report tells you it was not analyzed. Running AI Visual QA again for that version uses another check. Its findings are advisory, stay separate from the 100-point Pre-Checks score and do not replace reviewing the original screenshots.

Can I test from my existing email platform?

Yes. Each folder has a unique email address and saved email-client selection. Send a test to it from your platform and Vision Preview captures those clients. API submissions can use the same defaults or a subset. You can add clients to an individual proof without changing the folder, while its original source is available—retained for up to 30 days within the organisation’s source-storage allowance. Existing screenshots remain available when that source expires.

How long does a preview take?

Timing depends on the client, the email’s length and images, the queue, and whether a rendering device needs to start. Screenshots appear as each client finishes, so you can begin reviewing available results while the others render. We don’t promise an identical completion time for every client.

What counts towards my preview allowance?

Each selected client and appearance counts as one render: five selected clients use five renders, and light and dark count separately. Automatic retries, reopening screenshots and reselecting already-generated clients do not use extra renders. Adding a never-requested client or generating a new version uses the corresponding number of renders. API and email submissions share your organisation’s hourly and monthly allowances. Basic and Standard monthly usage resets on the Stripe subscription anniversary; Free resets on the first day of each month (UTC). Unused capacity does not roll over.

Can my team work in the same account?

Create an organisation and invite your colleagues. Admins manage the organisation, members and billing. Users work with folders and previews. If you belong to multiple organisations, you can switch between them in the app.

How does the preview API work?

Open a folder and copy its API example. Send your HTML and chosen email clients using the folder’s bearer token. You’ll receive a preview ID and polling command. Poll with the same token for image URLs as they become available, and check terminal failures. Keep your token private: it grants API access to that folder. Tokens do not expire automatically and can be rotated.

YOUR NEXT EMAIL DESERVES THIS

Make the first
impression a good one.

See the proof. Hear the feedback. Give the go-ahead.

Start previewing for free No credit card needed. Just your next great email.