What is the best size for Facebook ads in 2026?

The most versatile Facebook ad size is 1080×1080 (1:1) for feed placements. For Stories and Reels, use 1080×1920 (9:16). The 4:5 portrait format (1080×1350) also performs well in feeds because it takes up more screen real estate on mobile. Our ad resizer generates all three formats at once so you can test which works best.

How do I resize an ad for Instagram Stories?

Instagram Stories require a 9:16 vertical format at 1080×1920 pixels. Upload your existing ad creative to our resizer, select the "Stories / Reels" format under Meta, and our AI will recompose your layout to fit the vertical canvas — keeping your branding, text, and key visuals intact.

Can I resize to multiple ad formats at once?

Yes. Select as many formats as you need across all platforms — Meta, TikTok, LinkedIn, Pinterest, Display, and Twitter/X. The AI generates every selected format in a single batch, so you can download all your ad creatives at once.

What's the difference between 1:1 and 4:5 for Meta ads?

A 1:1 (square) ad works across both Facebook and Instagram feeds and is the safest default. A 4:5 (portrait) ad is taller, which means it occupies more vertical space on mobile screens — this can increase engagement and stop-rate. We recommend testing both to see which drives better results for your campaign.

What social media ad sizes do you support?

We support ad creative sizes for Meta (Facebook & Instagram), TikTok, YouTube Shorts, LinkedIn, Pinterest, Twitter/X, and standard Display/Banner formats. This includes square (1:1), portrait (4:5, 9:16, 2:3), landscape (16:9), and ultra-wide (21:9) aspect ratios.

Is this ad resizer really free?

Yes — you can resize up to 3 ad creatives per day for free, with no credit card required. Each generation can include multiple format outputs. If you need higher volume, check out Reloop's full platform which also lets you turn your creatives into AI-powered UGC video ads.

Free Tools

Free AI Ad Resizer

Resize ad creatives for every platform in seconds — no Photoshop, no design skills needed.

Our free AI ad creative tool automatically adapts your visuals to all social media ad sizes — Meta, TikTok, LinkedIn, Pinterest, Display and more. Upload once, get every format instantly.

Drop your ad here or click to upload

PNG, JPG or WebP

Meta (Facebook / Instagram)

TikTok / YouTube Shorts

Display / Banner

Twitter / X

From static ad to full video

Turn your resized creatives into scroll-stopping UGC videos — AI actors, voiceover, editing included.
200 free credits, no card required.

Ad Creative Sizes

Supported Ad Sizes for All Platforms

Every dimension you need for Facebook, Instagram, TikTok, LinkedIn, Pinterest, Twitter/X and Display ads.

Platform	Format	Aspect Ratio	Dimensions
Meta (Facebook / Instagram)	Feed Square	1:1	1080×1080
	Feed Portrait	4:5	1080×1350
	Stories / Reels	9:16	1080×1920
	Feed Landscape	16:9	1920×1080
TikTok / YouTube Shorts	Vertical	9:16	1080×1920
LinkedIn	Square	1:1	1200×1200
	Landscape	16:9	1200×627
Pinterest	Standard Pin	2:3	1000×1500
Display / Banner	Landscape	16:9	1920×1080
	Medium	4:3	1024×768
	Square	1:1	1080×1080
	Ultra-wide	21:9	2560×1080
Twitter / X	Landscape	16:9	1200×675
	Portrait	4:5	1080×1350
	Square	1:1	1080×1080

Simple

How It Works

Three steps. Zero design skills required.

Upload your ad

Drop your existing ad creative — any format, any size.

Pick your formats

Select the platforms and aspect ratios you need. One click per group.

Get your resized ads

AI adapts your creative to each format. Download them all instantly.

Features

What You Get

AI-powered ad adaptation, not just cropping.

Smart recomposition

AI understands your ad and recomposes the layout for each aspect ratio.

Instant generation

Get all your formats in seconds, not hours of manual Photoshop work.

Every major platform

Meta, TikTok, LinkedIn, Pinterest, Display, Twitter/X — all covered.

One-click download

Download each format individually, ready to upload to your ad manager.

FAQ

Ad Resizer FAQ

Everything you need to know about social media ad sizes and our free resizer.

Testimonials

Trusted by creators worldwide

See what our users have to say about Reloop and how it transformed their content creation workflow.

It completely changed how we run SaaS ads. We capture attention instantly and boost engagement.

Lucas Gonzales

CEO, Vizion

We ship social content daily without a studio. It saved us time, money, and tons of effort.

Olivier Mounié

Head of Ojetables

Our social presence leveled up. We create impactful content fast and stay top of mind.

Alexandre Derocq

Founder, Casanea

UGC creation became effortless. Editing, subtitles, storytelling – everything feels smooth now.

Clément Carrere

Director, Easy Virtual Tour

We launch promos and micro-lessons in minutes. It accelerated our course sales.

Freddy Janssens

Founder, Formation.Academy

I tested Reloop and the results were impressive. Excited to see how far we can push it.

Juliette Charpentier

Head of Acquisition, Nooz Optique

It completely changed how we run SaaS ads. We capture attention instantly and boost engagement.

Lucas Gonzales

CEO, Vizion

We ship social content daily without a studio. It saved us time, money, and tons of effort.

Olivier Mounié

Head of Ojetables

Our social presence leveled up. We create impactful content fast and stay top of mind.

Alexandre Derocq

Founder, Casanea

UGC creation became effortless. Editing, subtitles, storytelling – everything feels smooth now.

Clément Carrere

Director, Easy Virtual Tour

We launch promos and micro-lessons in minutes. It accelerated our course sales.

Freddy Janssens

Founder, Formation.Academy

I tested Reloop and the results were impressive. Excited to see how far we can push it.

Juliette Charpentier

Head of Acquisition, Nooz Optique

I tested Reloop and the results were impressive. Excited to see how far we can push it.

Juliette Charpentier

Head of Acquisition, Nooz Optique

We launch promos and micro-lessons in minutes. It accelerated our course sales.

Freddy Janssens

Founder, Formation.Academy

UGC creation became effortless. Editing, subtitles, storytelling – everything feels smooth now.

Clément Carrere

Director, Easy Virtual Tour

Our social presence leveled up. We create impactful content fast and stay top of mind.

Alexandre Derocq

Founder, Casanea

We ship social content daily without a studio. It saved us time, money, and tons of effort.

Olivier Mounié

Head of Ojetables

It completely changed how we run SaaS ads. We capture attention instantly and boost engagement.

Lucas Gonzales

CEO, Vizion

I tested Reloop and the results were impressive. Excited to see how far we can push it.

Juliette Charpentier

Head of Acquisition, Nooz Optique

We launch promos and micro-lessons in minutes. It accelerated our course sales.

Freddy Janssens

Founder, Formation.Academy

UGC creation became effortless. Editing, subtitles, storytelling – everything feels smooth now.

Clément Carrere

Director, Easy Virtual Tour

Our social presence leveled up. We create impactful content fast and stay top of mind.

Alexandre Derocq

Founder, Casanea

We ship social content daily without a studio. It saved us time, money, and tons of effort.

Olivier Mounié

Head of Ojetables

It completely changed how we run SaaS ads. We capture attention instantly and boost engagement.

Lucas Gonzales

CEO, Vizion

Ready to create viral ads?

Start for free
no credit card required. 200 credits included.