Resize image dimensions

Change width and height, lock aspect ratio, or use social presets.

Runs on your deviceFreeNo account

How to use Image resizer

Upload an image. Type a width or pick a preset (1080×1080, 1280×720, 1920×1080, story 1080×1920). Height follows when lock is on. Download PNG or JPG.

Add your file

Drag & drop, browse files, or press Ctrl+V to paste from the clipboard where supported.

Process in the browser

Work stays in this tab with WebAssembly, Canvas, or other on-device APIs — your file is not uploaded to Omnipus.

Download or share

Save the result to your device, or share it with the OS share sheet when available.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

Change width and height, lock aspect ratio, or use social presets for Instagram, YouTube thumbnails, avatars, and print. Aspect lock prevents stretching. Export stays on your device.

#resize image#change image size#instagram size

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Frequently Asked Questions

Can I enlarge a photo?

Yes, but enlarging cannot invent detail. Start from the largest original you have.

Does it crop?

Resizer scales. Use Image Cropper for a specific frame.

Keep EXIF?

The export is a fresh canvas, so camera EXIF is typically not copied.

Batch resize?

Process one image at a time for a clear preview.

Is Image resizer completely free to use?

Yes. Image resizer on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. Image resizer processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Does Omnipus add watermarks to exported files?

No. Omnipus does not stamp a site watermark onto files you export from Image resizer.

Can I use Image resizer on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

Related tools

More image tools that pair well with this one.

Image cropperCrop photos with freeform or locked aspect ratios.Image compressorShrink image file size with a live quality preview.YouTube thumbnailGrab the largest available thumbnail of a YouTube video (up to 1280×720).PNG to JPGConvert PNG images to JPG with a white or custom background.JPG to PNGConvert JPG photos to lossless PNG.WebP converterConvert WebP images to PNG or JPG, or create WebP from photos.