How AFileFix's Social Media Resizer works

Upload one image, and AFileFix resizes it for multiple social media platforms in a single batch. Pick the platforms you need, and AFileFix produces correctly-sized versions for each — Instagram posts and stories, Facebook posts and covers, Twitter/X posts and headers, LinkedIn posts and banners, YouTube thumbnails. Download individual sizes or all of them as a ZIP archive.

The resizing happens entirely in your browser; your image is never uploaded.

What platforms are supported?

Each platform has multiple format options coded with current recommended dimensions:

• Instagram: Post (1080×1080), Story (1080×1920), Landscape (1080×566)
• Facebook: Post (1200×630), Cover (820×312)
• Twitter / X: Post (1200×675), Header (1500×500)
• LinkedIn: Post (1200×627), Banner (1584×396)
• YouTube: Thumbnail (1280×720)

You select which formats you want; AFileFix produces all of them from your single source image.

How do I create platform-sized images?

1. Upload your image. Drop a JPG, PNG, or WebP file. Up to 20 MB.
2. Select platform formats. Click each platform/size combination you want. You can pick a single platform or many at once.
3. Choose fit mode.
   • Fill (default): Scales and crops the image from center to fully cover the target dimensions. This is the most common choice — the image fills the canvas completely with no padding.
   • Fit: Scales to fit within the target while preserving aspect ratio, adding white padding to fill any gaps. Useful when content near the edges matters and you don't want anything cropped.
   • Stretch: Scales to exact dimensions, distorting the aspect ratio. Rarely the right choice.
4. Process and download. AFileFix produces the requested versions. Download a single version or all of them as a ZIP archive.

Fill, fit, or stretch — when to pick which?

Fill is the right default for most images. It scales the source up or down to fully cover the target canvas, then crops the excess from the center. The result looks intentional and uses the full canvas. The trade-off: content near the edges may get cropped out.

Fit is for when you can't afford to crop anything. AFileFix scales the image to fit within the target dimensions and pads with white. The image is fully visible but doesn't use the full canvas — there's white space on the sides or top/bottom.

Stretch is rarely what you want. It distorts the aspect ratio to match exact dimensions — circles become ellipses, faces look wrong. Only useful for textures or patterns where distortion is acceptable.

A note on platform spec changes

Platforms update their recommended dimensions periodically. AFileFix's specs are coded into the tool — when a platform changes its dimensions, AFileFix needs a code update to match. If the accuracy of specific dimensions matters for your work (e.g., professional social media management), check the platform's current docs before publishing.

For everyday use, the dimensions are close enough that platforms accept the upload and display it correctly. The differences are typically within a few percent.

For custom dimensions outside the platform presets, use Image Resizer.

Frequently asked questions