JPEGConvert.com
Private by design. Processed in your browser on your device. No account required. How it works

Image Upscaler

Enlarge JPG or PNG photos for print, listings, and social. Choose 2x, 3x, 4x, or a custom size, compare original vs upscaled, and download instantly.
Related tools
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Original: {{ originalDimensions }}
File size: {{ formatSize(originalSize) }}
More presets
Custom size
Output size: {{ scaledDimensions }} ({{ scaleLabel }})
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Processing {{ progress.toFixed(0) }}%
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Choose an image to start
Choose a JPG or PNG. We will show a clear original vs upscaled preview here.
How to read the preview
  • Upscaling adds pixels for larger prints and tighter crops; settings live on the left and the preview updates automatically.
  • The preview is scaled down, so if it looks similar, download the upscaled image and zoom in to compare fine detail.
What's changed
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Original: {{ originalDimensions }} · {{ formatSize(originalSize) }}
Upscaled: {{ scaledDimensions }} · {{ formatSize(result.size) }}
Upscaled: {{ scaledDimensions }} · waiting for output
Preview
Upscaling · {{ progress.toFixed(0) }}%
Original
Original preview
{{ originalDimensions }} · {{ formatSize(originalSize) }}
Upscaled
Upscaled preview
Upscaled preview will appear here after processing.
{{ scaledDimensions }} · {{ formatSize(result.size) }}
Expected size: {{ scaledDimensions }}

How to Upscale a Photo

Choose an image and pick a size

Choose a JPG or PNG, pick 2x/4x or open Advanced for a custom size.

Compare and download

Review the side-by-side preview and download when ready.

Flexible size options

Pick 2x or 4x quickly, or open Advanced for 1.25x, 1.5x, 3x, and custom sizes.

Clear before/after previews

Compare original vs upscaled with side-by-side, slider, or single-view modes.

Target width option

Set a custom width in pixels when you need a specific size for a platform.

JPG quality control

Tune JPEG output quality to balance sharpness and file size.

PNG transparency support

Keep transparent backgrounds when exporting to PNG.

Private by default

Upscaling runs in your browser so your files stay on your device.

Fast export

Download the upscaled image as soon as processing completes.

Frequently Asked Questions

Upscale when a photo looks pixelated at larger sizes, when you need higher resolution for print, or when a platform requires a minimum width.

Use 2x for web and social, 4x for print or large displays, or open Advanced if you need a specific size.

Yes. Open Advanced scale to choose 1.25x, 1.5x, 3x, or enter a custom percent or target width.

This tool uses high-quality resizing to enlarge images while keeping edges smooth. AI-enhanced upscaling may be added later.

Upload JPG or PNG images. Export the upscaled result as JPG or PNG.

Upscaling increases pixel dimensions, so the file size usually grows along with it.

No. Everything runs in your browser on your device for privacy.

Yes, but very large images may take longer to process on mobile devices.

Need a hand with your file?

JPEGConvert.com keeps the workflow simple: upload, convert, and download. For the best results, start with the highest-quality source file you have.

About the team | Contact support

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