AI image aspect ratio helper for practical dimensions.
Select a common image format and output size. The helper recommends practical dimensions for a local generation workflow.
Portraits and feed posts
The share link includes this output in its URL fragment. Offlair does not upload it.
A clear starting point, ready in seconds.
The helper keeps both dimensions in 64-pixel steps. Some results closely approximate the named ratio to preserve those practical dimensions.
- 01
Choose the intended image format.
- 02
Select a conservative or larger long edge.
- 03
Copy the recommended dimensions into your app.
Answers about this free tool.
What is an image aspect ratio?
An aspect ratio describes the relationship between image width and height. A 1:1 image is square.
Why does this tool use multiples of 64?
Many local diffusion workflows handle dimensions in regular steps. Multiples of 64 provide practical starting points for broad compatibility.
Which aspect ratio should I use for a portrait?
Use 4:5 for a close portrait or social post. Use 2:3 for a taller editorial composition.
Take your prompt into a private local studio.
Offlair generates images on compatible devices after account verification and model setup.