Private by design. Files stay on your device - no uploads, no accounts. How it works

Image Upscale

Upscale JPG or PNG photos 2x or 4x, compare the result with a slider, and download a larger image for sharing or print.

or drop it here

{{ imageFile.name }}

Original: {{ originalDimensions }}

File size: {{ formatSize(originalSize) }}

Scale

Output size: {{ scaledDimensions }}

Output format

JPG quality: {{ outputQuality }}%

{{ warningMessage }}

Processing {{ progress.toFixed(0) }}%

{{ errorMessage }}

Upload an image to start

Choose a JPG or PNG. We will show the before/after slider here.

Upscaling in progress

Upscale complete

Ready to upscale

Rendering your upscaled image. This can take a minute for large files.

Drag the slider to compare before and after. Download when you are ready.

Pick 2x or 4x and start the upscale.

Scale: {{ scale }}x

Output: {{ outputFormatLabel }}

Upscaled preview

Original preview

Original preview

Preview will appear here after upscaling.

Original Upscaled

Original: {{ originalDimensions }} · {{ formatSize(originalSize) }}

Upscaled: {{ scaledDimensions }} · {{ formatSize(result.size) }}

How to Upscale an Image

Upload your image

Drop in a JPG or PNG and choose 2x or 4x upscale.

Compare before and after

Use the slider to see the sharpness improvements side by side.

2x or 4x upscaling

Choose the scale you need to enlarge photos without extra steps.

Before and after slider

Compare the original and upscaled version with a draggable slider.

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

This v1 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 locally in your browser 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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