Image Resizer

Image Resizer

Resize any image to the exact size you need. Tap a social media preset or enter custom dimensions, then download. Your image never leaves your browser.

Drop an image here, or browse

JPG, PNG, WebP or GIF

How to Resize an Image

Drop an image into the box above or click to browse. Once it loads, tap a social media preset — like Instagram Story or YouTube Thumbnail — or type your own width and height. Choose how the image should fit, pick an output format, and click Download. The whole thing happens on your device, so even large photos resize in a second and nothing is uploaded.

Cover, Contain, or Stretch?

These three modes decide what happens when your image and the target size don’t share the same shape. Cover fills the frame completely and trims the overflow, which is best for social posts where you want no empty space. Contain shrinks the whole image to fit inside the frame without cropping, leaving padding if the shapes differ. Stretch forces the exact dimensions and can distort the picture, so use it only when the proportions already match.

Which Format Should I Choose?

Use JPG for photos and most social uploads — it gives small files with good quality. Pick PNG when you need a transparent background or crisp text and logos. Choose WebP for the smallest file size at similar quality, ideal for websites that support it. The quality slider lets you trade a little sharpness for a smaller file on JPG and WebP.

Frequently Asked Questions

Does resizing reduce image quality?

Making an image smaller keeps it sharp. Enlarging it beyond its original size can look soft, because the tool has to invent extra pixels. For best results, start with the largest version you have.

Are my images uploaded anywhere?

No. Everything runs in your browser using your device’s own processing. Your images are never sent to a server, so they stay completely private.

What size should a YouTube thumbnail be?

1280×720 pixels, a 16:9 ratio. Use the YouTube Thumbnail preset above and the tool sets it for you.

Can I resize for Instagram and TikTok?

Yes. Tap the Instagram or TikTok presets for the correct vertical 1080×1920 size, which fits Stories, Reels, and TikTok videos.