AllAdSpecs.com is a free, searchable reference directory for digital advertising specifications across major publishers and platforms. It centralizes dimensions, aspect ratios, file size limits, codecs, safe zones, and creative requirements into one easy-to-use resource for marketers, designers, media planners, and ad operations teams.
Media Planning
Media planners can quickly validate placement requirements before campaigns are booked.
Creative Production
Designers can build assets to exact platform specifications from the start.
Ad Operations
Ad ops teams can reduce rejections, trafficking issues, and launch delays.
Agency Workflows
Agencies can standardize specifications across multiple clients and publishers.
Freelancers & Small Businesses
Independent marketers can launch campaigns without needing platform-specific expertise.
QA & Campaign Validation
Teams can verify whether creatives meet publisher requirements before upload.
Cross-Channel Campaigns
Useful for campaigns spanning multiple publishers with different format requirements.
Training & Onboarding
Junior marketers and designers can quickly learn platform requirements.

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