Free Google Ad Manager Tools for Publishers & Ad Ops

Q: Who are these Google Ad Manager tools for?

Publishers, ad operations teams, and marketers who work with Google Ad Manager and need free utilities for building, validating, and preparing ad creatives.

Q: Are Genecy tools compatible with Google Ad Manager?

Yes. Tools on this hub are designed around Google Ad Manager workflows, including clickTag support where relevant for HTML5 creatives.

Free utilities for Google Ad Manager (GAM) workflows: HTML5 and YouTube video banner generators, an ad banner image resizer, and an HTML5 banner validator. Build, check, and prepare creatives before upload.

Free to use
Built for GAM
No coding required

Video banners

YouTube Video Banner Generator

HTML5 video banners from YouTube links with clickTag support and playback controls.

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HTML5 Video Banner Generator

Hosted MP4, WebM, or Ogg URLs into clickTag-ready HTML5 banners for GAM.

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Image utilities

Ad Banner Image Resizer

Resize JPG, PNG, or GIF banners to ad unit dimensions with crop, format conversion, and file size optimization.

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Banner checks

HTML Banner Validator

Check an HTML banner or ZIP: size, weight, click tags, secure links, and a live preview.

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Tools for Google Ad Manager workflows

Genecy’s free tools help publishers and ad operations teams move faster in Google Ad Manager - from building HTML5 creatives to checking assets before upload. Use the YouTube Video Banner Generator or HTML5 Video Banner Generator for video placements, the Ad Banner Image Resizer for still creatives, and the HTML Banner Validator to catch packaging issues early.

Works alongside Genecy Templates for Google Ad Manager when you need advanced interactive formats, and with our rich media ads for direct-sold campaigns.

FAQ

Who are these Google Ad Manager tools for?

Publishers, ad ops, and marketers using Google Ad Manager who want free utilities for creative production and QA.

Are Genecy tools compatible with Google Ad Manager?

Yes. Tools are designed around GAM requirements, including clickTag support where applicable for HTML5 output.

Are these tools free to use?

Yes. All tools listed on this page are free for publishers and ad ops teams.

Will more tools be added?

Yes. New Google Ad Manager helpers are added to this hub over time, alongside the existing banner generators, resizer, and HTML banner validator.

Also from Genecy

Gamlytics — client reporting for Google Ad Manager

Create live advertiser reports from GAM line items, share them without GAM access, and automate campaign close-out.

Google Ad Manager client reporting

Start Free with 2 Templates

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