AI Image Generator with Custom Size — Any Resolution, Pixel-Perfect
Generate AI images at any exact pixel dimension. Whether you need a 1920×1080 desktop wallpaper, a 9:16 phone background, a 4096×4096 print-ready file, or any custom resolution — PixExact delivers pixel-perfect results every time. No cropping, no guessing, just the exact size you need.
Generate AI Images at Any Size — Common Resolutions & Use Cases
Not sure which size to choose? Here are the most popular resolutions and what they are used for. Click any size to start generating instantly.
1920×1080 — Desktop & YouTube
The universal HD standard. Perfect for desktop wallpapers, YouTube thumbnails, presentation backgrounds, and any widescreen display. Crisp on every monitor.
1080×1920 — Phone & Story
The go-to vertical format for phone wallpapers, Instagram Stories, TikTok covers, and Reels. Fill every inch of your mobile screen with AI-generated art.
1080×1350 — Instagram Portrait
The ideal portrait format for Instagram feed posts and Pinterest pins. Taller than square, it takes up more screen space in the feed — giving your AI-generated image maximum visual impact.
1080×1080 — Instagram & Social
The perfect square for Instagram posts, product images, profile pictures, and social media content. Balanced composition that looks great on every feed.
How to Generate an Image at a Custom Size
Three simple steps — no design skills required.
Set Your Exact Size
Enter the exact width and height in pixels, or pick from popular presets like 1920×1080, 9:16, or 4096×4096. You are in full control of the output dimensions.
Describe Your Image
Type a prompt describing what you want to create. Be specific — include style, lighting, mood, and subject for the best results. You can also upload a reference image.
Generate & Download
Click Generate and your AI image is ready in seconds. Download it at the exact pixel size you specified — no cropping, no resizing needed.
Frequently Asked Questions
How do I generate a 1920×1080 AI image?
Select the 1920×1080 preset from the size panel, or manually enter 1920 as the width and 1080 as the height. Write your prompt and click Generate. Your image will be created at exactly 1920×1080 pixels.
What is the maximum image size I can generate?
Free users can generate images up to 1024px on the longest side. Pro users unlock resolutions up to 4096×4096 pixels — ideal for print, large displays, and professional design work.
Can I generate an image at any custom pixel size?
Yes. Use the custom size input to enter any width and height you need. There are no fixed aspect ratio restrictions — you can generate portrait, landscape, square, or ultra-wide images.
Is this AI image generator free to use?
Yes, PixExact is free to start. New users receive complimentary credits upon sign-up. Additional credits are available through our subscription plans for high-volume or high-resolution generation.
What makes this different from other AI image generators?
Most AI generators output a fixed size and force you to resize or crop afterward. PixExact lets you specify the exact pixel dimensions before generating, so the AI composes the image natively at your target resolution — no quality loss from resizing.
Can I use the generated images commercially?
Yes. Images generated on PixExact are yours to use for commercial purposes, including advertising, merchandise, and marketing materials, subject to our Terms of Service.
Generate Your Image at the Exact Size You Need
Stop resizing and cropping. With PixExact, you set the dimensions first — the AI creates the image to fit perfectly. Any resolution, any aspect ratio, pixel-perfect every time.