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🖼️  Asset Resizer

Launch Asset Resizer

Product Hunt and WonderLaunch require 16:9 gallery images. Upload your raw screenshot below to automatically pad it onto a beautiful background.

Output Size: 1270 x 760 (16:9)

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Got your assets ready?

WonderLaunch gives your product a pre-launch countdown page and an email blast on launch day to help you get more traction.

Submit to WonderLaunch — It's Free →

The Founder's Guide to Launch Assets

Your gallery images are the first thing users see when they discover your product. Badly cropped screenshots kill conversions. Here is everything you need to know about preparing launch assets.

What aspect ratio does Product Hunt use?

Product Hunt and WonderLaunch require gallery images and thumbnails to be a 16:9 aspect ratio, with a recommended resolution of 1270x760 pixels.

If you upload a standard desktop screenshot (which is often 16:10) or a mobile screenshot (which is 9:16), their system will automatically center-crop it. This often cuts off important UI elements, text, and ruins your presentation.

How does this image padder work?

Instead of forcing you to use complex design tools like Figma or Photoshop, this tool runs entirely in your browser using HTML5 Canvas.

It takes your raw screenshot, shrinks it slightly to create breathing room, and centers it on a solid or gradient background perfectly sized to 1270x760. This guarantees your image will never be cropped by the platform.

How to use the Asset Resizer

Preparing your launch gallery takes less than 10 seconds:

  1. Upload a screenshot: Drag and drop your raw desktop or mobile screenshot into the tool.
  2. Choose a background: Select a solid color or gradient that matches your brand identity. The tool will automatically pad your image.
  3. Download the asset: Click "Download Image" to save the perfectly formatted 1270x760 PNG file, ready for immediate upload to Product Hunt.

Are my unreleased product images safe?

Yes. 100% safe. We know founders are highly protective of unreleased UI screenshots.

Because this tool uses native browser APIs, all image processing happens locally on your machine. Your images are never uploaded to an external server, meaning they cannot be leaked or stored.

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Assets ready? It's time to launch.

Now that your screenshots are perfectly sized, upload them to WonderLaunch and get your pre-launch page live today.

Submit Your Product — It's Free →