Resize media to exact social platform sizes.

Social Media Resizer reframes your images and videos to the exact dimensions each platform wants - an Instagram square, a TikTok vertical, a YouTube thumbnail - without you memorizing a single spec. Pick the platform, export, post.

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Foldout Resize media to exact social platform sizes tool screen on macOS
Processes on your MacTool work stays inside the local app.
Signed and notarizedBuilt for Apple Silicon Macs.
No usage trackingFoldout does not track what you do in the app.
Paddle checkoutPaddle shows price, tax, and terms before purchase.
What it does

Size any image or clip to the platform it is headed for.

Resize images and videos to platform-perfect presets.

Cover Instagram, TikTok, YouTube, and more in one place.

Stop hunting for the right pixel dimensions every time.

New outputs are created with originals left intact.

Detailed capabilities

What Social Media Resizer covers.

Concrete features, inputs, and workflow details for this tool.

Every platform, memorized for you

Ready-made presets match the current post, story, thumbnail, and short-video sizes, so you never paste an image that ends up cropped or letterboxed.

Images and video together

Prepare a still or a clip from the same tool, so a campaign that spans a feed post and a short video gets sized in one sitting.

Originals stay safe

Each resized asset is written as a new file, leaving your master image or video untouched for the next platform.

How to use it

From opening the tool to saving the result.

  1. 01

    Add media.

  2. 02

    Choose the platform and format preset.

  3. 03

    Review crop or resize settings.

  4. 04

    Export the resized output.

Questions

Before you try Social Media Resizer

Does it support videos?

Yes. Social Media Resizer accepts image and video inputs where supported.

One app. 100+ tools.

Add Social Media Resizer to your Mac toolbox.

Download Foldout, try the full toolbox, then choose a plan when it fits.