HTML5 banner ad preflight checker
Inspect an HTML file or ZIP package for declared dimensions, clickTag signals, file weight, external resources, and common packaging mistakes.
Use free toolChoose an ad platform, placement, and creative format to generate a concise checklist for dimensions, weight, animation, click handling, and final validation.
Use the free toolFree browser tool
Your selections are processed locally. No campaign information is sent to Hypermatic.
Need the complete banner workflow?
This free tool checks or plans one asset. Bannerify handles the recurring production work: animate designs, create variations, keep the source editable, and export HTML, GIF, or MP4 campaign files.
How it works
Choose the destination ad platform and creative format.
Select a common placement to get its canvas dimensions and production checks.
Copy the brief, confirm the latest platform policy, and use it when designing or reviewing the creative.
Questions
The finder covers common rectangle, leaderboard, billboard, half-page, skyscraper, square, and mobile placements from 200 × 200 through 970 × 250.
Networks update supported formats, weight limits, vendor policies, click requirements, and campaign-specific rules. The generated brief is a useful starting point, not a permanent platform contract.
Yes. You can use it without an account or signup. The focused result is generated directly in your browser.
Free practical guide
Choose an ad platform, placement, and creative format to generate a concise checklist for dimensions, weight, animation, click handling, and final validation. This guide explains what the result means, how to avoid the most common interpretation mistakes, and when the related Bannerify workflow becomes the more practical next step.
Quick answer
Choose the destination ad platform and creative format. Select a common placement to get its canvas dimensions and production checks. Copy the brief, confirm the latest platform policy, and use it when designing or reviewing the creative. The tool is free to use without an account, and your selections are processed locally. No campaign information is sent to Hypermatic.
Choose an ad platform, placement, and creative format to generate a concise checklist for dimensions, weight, animation, click handling, and final validation. The immediate result is a copyable display ad production checklist. That makes the tool useful when a focused question needs an answer before a file is handed off, a campaign is trafficked, or a production workflow begins.
The scope is intentionally narrow. It is designed for checking one banner asset or preparing one trafficking brief, not for replacing the complete production process. A useful result should make the next decision clearer while leaving the original file, design, or workflow under the user’s control.
Your selections are processed locally. No campaign information is sent to Hypermatic. Local processing reduces unnecessary data exposure, but it does not remove the need to follow the privacy, confidentiality, and retention requirements that apply to the source material.
Start with the same input that will be used in production whenever possible. Draft content, substitute files, and approximate dimensions can be useful during exploration, but the final check should use the actual export, final copy, destination, or supported range.
Work through the steps in order and keep the generated result beside the source. If the result identifies a warning, decide whether it is a real production problem, an acceptable tradeoff, or a limitation of a browser-based inspection before changing the underlying work.
A browser tool can make measurable signals visible, but it cannot reproduce every application, platform, rendering engine, policy, or team constraint. Treat the report as evidence for a decision rather than a universal guarantee. The strongest verification is the final uploaded preview and the current requirements of the destination ad platform.
Pay particular attention to edge cases that are easy to miss during a quick check: unusual fonts, long or localized content, hidden metadata, external dependencies, different aspect ratios, browser-specific behavior, and last-minute source changes. Re-run the tool whenever the production input changes materially.
Which banner sizes are included? The finder covers common rectangle, leaderboard, billboard, half-page, skyscraper, square, and mobile placements from 200 × 200 through 970 × 250.
Why can banner specifications change? Networks update supported formats, weight limits, vendor policies, click requirements, and campaign-specific rules. The generated brief is a useful starting point, not a permanent platform contract.
Is the display ad spec finder free? Yes. You can use it without an account or signup. The focused result is generated directly in your browser.
The free tool is the right choice for a quick individual check, calculation, preview, or template. It remains useful even if the task only occurs once and no broader production workflow is needed.
Bannerify becomes more practical when the same job turns into animating, adapting, naming, and exporting complete campaign banner sets. At that point, keeping the work close to the Figma source reduces repeated exports, copy-and-paste steps, inconsistent decisions, and handoff drift.
Before adopting any workflow, compare the time spent on the recurring manual process with the setup and review required by the tool. The goal is not to add another application; it is to remove repetitive work while preserving the quality checks that still need human judgment.