PixelResize

Resize photos for Instagram

Choose square, portrait, landscape or story. The crop box locks to Instagram's recommended size, so your post won't be cropped unexpectedly.

Drop an image here

or

You can also paste with Ctrl/⌘ + V. Supports JPG, PNG, WebP, GIF and AVIF.

  • 🔒 Stays on your device
  • ⚡ Instant preview
  • 🆓 No sign-up, no watermark

Open image from URL

The image is downloaded through our server and is not stored.

Are you sure?

Keyboard shortcuts

Ctrl OOpen image
Ctrl VPaste image
Ctrl SDownload
Ctrl Z / Ctrl YUndo / redo
1–5Crop, Resize, Rotate, Adjust, Export
EnterApply current tool
EscCancel current tool
HToggle the Pan (hand) tool
Space (hold) + dragPan the image temporarily
Ctrl + wheel / pinchZoom at the pointer
Double-click empty areaFit & re-centre
C (hold)Compare with original
+ / − / 0Zoom in / out / fit & re-centre
Arrows (crop box focused)Move selection; Shift = 10px, Alt = resize
?This help

How to resize a picture in 3 steps

  1. 1

    Open

    Drop a photo onto the page, paste a screenshot, or choose a file from your device.

  2. 2

    Edit

    Crop to a ratio or social media size, set the width and height, and rotate or straighten if needed.

  3. 3

    Download

    Pick JPG, PNG or WebP, set the quality or a target size in KB, and save the result.

Everything you need to get images ready

Resize by pixels or percent

Enter an exact width and height with the aspect ratio locked, or scale from 1% to 400%. You can pad or fill to a new shape instead of stretching.

Crop with presets

Crop freely or to 1:1, 4:3, 16:9, 4:5 or 9:16, or pick a built-in size for Instagram, Facebook, X, LinkedIn, YouTube or Pinterest.

Rotate, flip, straighten

Turn the image 90° at a time, mirror it, or level a tilted horizon to within half a degree.

Quick colour fixes

Adjust brightness, contrast, saturation, hue, blur and sharpness, or apply black & white or sepia, with a live preview.

Compress & convert

Export to JPG, PNG or WebP, watch the file size update live, or let PixelResize hit a target size in KB.

Private by design

All processing happens in your browser, and server processing is optional. Nothing is stored and there are no accounts.

Recommended image sizes

Instagram

Post – square1080 × 1080 px
Post – portrait 4:51080 × 1350 px
Post – landscape1080 × 566 px
Story / Reel1080 × 1920 px
Profile photo320 × 320 px

Facebook

Profile picture320 × 320 px
Cover photo851 × 315 px
Shared image / link1200 × 630 px
Event cover1920 × 1005 px
Story1080 × 1920 px

X (Twitter)

Profile photo400 × 400 px
Header1500 × 500 px
In-feed image 16:91600 × 900 px

LinkedIn

Profile photo400 × 400 px
Personal background1584 × 396 px
Company cover1128 × 191 px
Shared image1200 × 627 px

YouTube

Video thumbnail1280 × 720 px
Channel banner2560 × 1440 px
Channel icon800 × 800 px

Pinterest

Standard pin 2:31000 × 1500 px

Screen & web

4K UHD3840 × 2160 px
Full HD1920 × 1080 px
HD1280 × 720 px
XGA1024 × 768 px
SVGA800 × 600 px
VGA640 × 480 px
Open Graph image1200 × 630 px
Email header600 × 200 px

Frequently asked questions

How do I resize an image without losing quality?

Make the image smaller rather than larger, keep the aspect ratio locked, and export as PNG or as a high-quality JPG or WebP (85 or above). PixelResize scales down in several steps, which keeps fine detail sharp.

Are my photos uploaded to a server?

Not by default. Cropping, resizing, rotating, adjusting and converting all happen in your browser using the HTML5 canvas. The image is only sent to the server if you choose “On server” processing or open an image from a URL, and even then it is deleted as soon as the response is sent.

How do I reduce an image’s file size in KB?

Open the Export step and enter a target size in KB. PixelResize searches for the highest JPG or WebP quality that fits. Shrinking the image’s pixel size first saves even more.

Which format should I choose: JPG, PNG or WebP?

Use JPG for photos, PNG for graphics, screenshots or anything that needs transparency, and WebP when you want the smallest file that modern browsers and most apps support.

What are the right image sizes for social media?

Common sizes are 1080×1080 or 1080×1350 for Instagram posts, 1080×1920 for stories, 1500×500 for an X header, 1584×396 for a LinkedIn banner and 1280×720 for YouTube thumbnails. All of them are built in as presets.

Is PixelResize free?

Yes. There is no sign-up, no watermark and no limit on how many images you resize.