What is the best free AI ad generator?

Mintli offers 50 free lifetime credits with no credit card required, making it one of the most generous free options for small businesses. Canva also has a solid free tier for design-focused ad creation.

Can AI ad generators replace a marketing agency?

For most small businesses, yes. AI ad generators produce professional ads that would previously cost £500+ per campaign through an agency. You lose strategic planning but the output quality is comparable for straightforward ad creation.

Do AI-generated ads actually convert?

Yes, when done well. The key is brand consistency and clear messaging. AI ad generators that understand your brand through automatic extraction produce ads that convert at similar rates to professionally designed creatives.

How many ads should I test per campaign?

Start with 3 to 5 variations per campaign. AI ad generators make this easy because producing multiple variations takes seconds rather than hours. Test different images, headlines, and calls to action.

Which AI ad generator is best for Facebook ads?

Mintli and AdCreative.ai are the strongest options for Facebook ads. Mintli generates complete Facebook ad creatives with copy and images matched to your brand. AdCreative.ai focuses on conversion-optimised visuals with performance scoring.

Best AI Ad Generator for UK Small Businesses (2026 Test)

Mintli — AI Marketing Content Generator for UK Small Businesses

Create professional, on-brand marketing content in seconds. Generate ads, social posts, email campaigns, and videos with AI — no design skills needed.

What Mintli Does

AI copywriting using 7 proven marketing frameworks (PAS, AIDA, BAB, and more)
AI image generation tailored to your brand colours and style
Email marketing campaigns with professional templates
Multi-channel ad creation for Facebook, Instagram, Google, and LinkedIn