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HTML5 Ad Preview Live browser preview for all banner sizes HTML5 Ad Validator Check compliance for Google Ads, DV360 & more HTML5 Ad Fixer Auto-fix click tags, file sizes & platform errors ClickTag Validator Verify click tags are set up correctly

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Free Validator — No Signup Required

Validate HTML5
Banner Ads Instantly

Drop your HTML5 ZIP and get a live preview alongside an instant validation report — check file size, click tags, backup images, scripts and more before uploading to any ad platform.

Drop your HTML5 ZIP to validate

Get an instant report against Google Ads, DV360, CM360 and IAB

Accepts .zip files · Results shown instantly in your browser

1
Upload your ZIPDrop your HTML5 banner ZIP. One file — single banner or multiple sizes.
2
See preview + reportLive banner preview next to a validation report. See every pass, warning and error.
3
Sign up for full reportFree account unlocks the full report, auto-fix and shareable preview links.
Validation Results
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Checking…

General
Google Ads
DV360
IAB

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Validation is just
the beginning.

ADExhibit doesn't just flag errors — it fixes them. One click optimises your HTML5 banner: click tags, backup images, file size, metadata, custom exit events. Then share a polished client preview link, all without leaving the platform.

Full validation report — every check, every platform
One-click auto-fix for common errors
Shareable client preview links
Google Ads, DV360, CM360, IAB, Ströer and more
Campaign and client management
Social media mockup previews

Start for free

100MB storage, all features, no credit card required.

Free tier$0 forever
Freelancer$20 /mo

No credit card · Cancel anytime