Image sizes and compression for social media
Crop the image to a square, horizontal, or vertical post. Export JPEG, PNG, WebP, or a set of five sizes as ZIP.
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How to use
- Open a PNG, JPEG, or WebP up to 15 MB and 24 megapixels.
- Choose the size, the position of the object, and either the crop or the background.
- Download the result and check it in the target app.
How it works
When filling the canvas, extra edges are cropped; the whole-image mode adds a backing. The guide 10% helps you estimate the margins, but it does not define the safe zone of all interfaces. The dimensions can be changed manually from 64 to 4 000 pixels per side, up to 16 megapixels. Processing is done in the browser.
Example
From a horizontal snapshot you get a square 1080×1080, a portrait 1080×1350, a vertical announcement 1080×1920, a horizontal card 1920×1080, and a YouTube thumbnail 3840×2160. Geometric presets do not mean a universal requirement of all social networks. To upload a YouTube thumbnail, choose JPEG or PNG.
Source: YouTube: thumbnail requirements. The methodology was verified on 24 September 2026.
Questions about the tool
Will the quality improve if the size is increased?
No. Enlarging the canvas creates more pixels, but it does not restore the fine details of the source. For a large cover, it is better to use a high-quality original.
Is the file sent to a server?
No. Resizing and ZIP are created on your device. Large images may be processed more slowly on a phone.
Practice and examples
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The calculation result helps you make a decision. It does not guarantee organic reach, platform recommendations or sales.