Everything for running better Meta ads.

Guides, free tools, and playbooks for agencies and media buyers — from the team building Harry.

Guides

Facebook & Instagram Ad Specs and Sizes (2026)

The complete, current reference for Facebook and Instagram ad sizes, aspect ratios, character limits, and placements — for image, video, and carousel ads.

Updated July 2026

Free tools

Ad mockup generatorPreview your ad exactly as it appears in the Facebook and Instagram feeds before you launch. Upload a creative, add your copy, and see it live.ROAS calculatorFind the exact return on ad spend you need to break even — and the target ROAS to hit your profit goal. Includes break-even CPA.UTM builderGenerate clean, consistent UTM tracking URLs — with one-click Meta dynamic parameters like {{campaign.name}} and {{ad.name}}.Ad naming generatorBuild a consistent ad naming convention from dynamic tokens — client, campaign, objective, format, date — so every ad name matches.

All free tools

From the blog

Playbooks and deep dives on PPC strategy, Meta vs Google, attribution, and AI in media buying.

Read the blog