Ad Preview Tester
Test how banner ads look in your layout. Preview various ad formats including 728x90, 300x250, 468x60, and more in real-time.
Why Choose Our Ad Tester?
Instant Preview
See your ads in real-time without any delays. No registration or complicated setup required.
All Standard Formats
Support for 728x90, 300x250, 468x60, 160x600, and more. Mobile and desktop sizes covered.
Easy Integration
Embed ads on your site with a single line of code. Works with any HTML page or CMS.
Responsive Design
Ads automatically adapt to your layout. Perfect for mobile, tablet, and desktop screens.
Privacy Focused
No tracking, no cookies, no data collection. Your privacy is our priority.
Open Source
Fully open source and self-hostable. Fork it, modify it, make it yours.
How It Works
Choose Format
Select from various standard banner sizes below to see live previews.
Preview Live
See how the ads look in real-time with actual content and styling.
Get Embed Code
Copy the simple script tag and paste it anywhere on your website.
Live Banner Previews
Want This On Your Website?
Embed rotating banners on your site with a single line of code. Just copy and paste the snippet below into your HTML:
<script src="https://ad-server.fly.dev/embed.js?zone=27382965" async></script>
Latest Articles
Learn more about ad testing and optimization
- Standard Banner Ad Sizes Guide 2026: IAB Dimensions & Best Practices
- How to Test HTML5 Banner Ads Before Publishing
- Ad Server Setup Guide: Self-Hosted vs Cloud Solutions
- How to Monetize Your Website with Display Ads in 2026
- 10 Proven Ways to Increase Banner Ad CTR in 2026
- Best Free Tools to Test HTML Ads Online
- How to Preview HTML5 Banners Without Google Ads
- Top 5 Open Source Ad Servers
Why Us vs Others?
| Feature | Our Tool | Google Ad Manager | Other Tools |
|---|---|---|---|
| Free to Use | Always | Paid | Limited |
| No Sign-Up | None | Required | Required |
| Instant Preview | Real-time | Delayed | Yes |
| Open Source | Fully | No | No |
| Self-Hostable | Yes | No | No |
| Privacy Focused | No Tracking | Tracks Users | Varies |
Frequently Asked Questions
<script src="..."></script>)
and paste it into your HTML where you want the ad to appear.
The ad will automatically load and rotate.
See our Publisher Guide for detailed instructions.