Resize Image For

Free Image Resizer Online

Image Resizer

Resize image for social media, exact custom dimensions, and ready-to-post PNG downloads directly in your browser.

Upload images

Drag images here, or click to browse

Size
Images stay in your browser.

Resize mode guide

Choose how the image should behave inside the new size.

Image Resizer is built around exact custom dimensions. Enter the width and height first, then decide whether the source should stay fully visible, fill the frame, or stretch to the target pixels.

1-12000 px

Exact dimensions

Type the pixel size you want and the output name records the final width and height.

PNG + zip

Predictable export

Download PNG files one by one or package all completed outputs into a zip.

Local worker

Batch friendly

Web workers resize batches locally while the interface keeps showing progress and previews.

No upload

Private by design

The page uses browser image APIs. Source pixels are not sent to a server or third-party API.

Fit

Keep the whole image visible

Best for no-crop social posts, product images, thumbnails, and any layout where missing edges would be a problem.

Adds color or blur background if the source ratio does not match.

Fill

Crop to fill the target

Best when the frame needs to feel full-bleed and edge-to-edge, such as covers, cards, or visual banners.

Crops the source image to match the custom size.

Stretch

Force exact pixels

Best for mechanical resizing where exact output dimensions matter more than natural proportions.

Use carefully for photos because it can distort faces or objects.

Social media size map

Use exact numbers without turning the page into a preset picker.

The tool stays custom-first, while the guide below keeps common social media image sizes close at hand for Instagram posts, vertical stories, thumbnails, covers, and wide previews.

Last updated

May 24, 2026

A compact reference for custom image dimensions, local processing, and no sign-up resizing.

Square post

1080 x 1080 · 1:1

Classic feed posts and grid-ready product images

Open exact tool

Vertical story

1080 x 1920 · 9:16

Stories, Reels, TikTok, and Shorts-style images

Open exact tool

Portrait post

1080 x 1350 · 4:5

Tall feed posts with more mobile screen space

Open exact tool

Landscape post

1200 x 630 · 1.91:1

Wide social sharing cards and link previews

YouTube thumbnail

1280 x 720 · 16:9

Video thumbnails and wide preview graphics

Facebook cover

851 x 315 · 2.7:1

Profile and page cover-style banners

Browser-local workflow

Upload, render, export. Nothing leaves the device.

The resizing pipeline uses browser image APIs and web workers. That keeps the page responsive for batches and keeps source pixels out of remote storage.

1Source

Upload images

Drop in one photo or a batch. The browser creates local previews and keeps your files on your device.

2Size

Type the size

Enter a width and height in pixels. The page immediately rebuilds the output around that custom canvas.

3Mode

Pick the resize mode

Use Fit for no crop, Fill for edge-to-edge, or Stretch when exact pixel matching matters more than shape.

4Export

Export the result

Download a single PNG or export every completed image as one zip file.

Platform-specific paths

When you know the platform, jump to a dedicated image resizer.

This page is best for custom width and height. Dedicated Instagram tools keep platform rules, safe zones, no-crop copy, and exact sizes closer to the task.

All sizes

Instagram Image Resizer

Resize posts, Stories, Reels, profile photos, and feed formats from one page.

Feed

Instagram Post Resizer

Choose portrait, square, or landscape post formats from one post-focused workflow.

9:16

Instagram Story Resizer

Fit a full photo into a 1080 x 1920 Story canvas without cropping.

9:16

Instagram Reels Resizer

Prepare 9:16 Reels images, covers, and thumbnails with safe-zone previews.

1:1

Instagram Profile Picture Resizer

Resize a photo for the square profile frame and circular Instagram avatar crop.

4:5

Portrait Post Resizer

Convert an image to 4:5 or 1080 x 1350 for a tall Instagram feed post.

1:1

Square Post Resizer

Resize a photo to 1:1 for the classic Instagram square format.

1.91:1

Landscape Post Resizer

Fit wide photos into the 1.91:1 Instagram landscape post frame.

FAQ

Image resizing questions

Direct answers for custom sizes, social media dimensions, quality, privacy, and batch downloads.

What is an image resizer?

An image resizer changes the pixel width and height of a photo or graphic. This page lets you choose exact dimensions, preview the result, and download a resized PNG directly in your browser.

Can I resize image for social media?

Yes. Type the width and height required for square posts, 4:5 portrait posts, 9:16 stories or reels, 16:9 thumbnails, wide social sharing images, or any custom social format.

Can I resize an image without cropping?

Yes. Choose Fit mode to place the whole image inside the target canvas, then use a solid color or blur background to fill any empty space.

Can I resize image to 1080x1080 or 1920x1080?

Yes. Type the exact width and height you need in the Size fields. You can resize to 1080 x 1080, 1920 x 1080, 1080 x 1920, or another custom dimension.

Does resizing reduce quality?

The page exports from the source image you upload. For the best result, start with a large original file and avoid resizing an already compressed or very small copy upward.

Are my images uploaded to a server?

No. The resize workflow uses browser image APIs and web workers. Source images and generated outputs stay on your device.

Can I batch resize images?

Yes. Upload several image files, keep the same size settings, and download each ready PNG or export all completed outputs as one zip.

Is this image resizer free online?

Yes. This is a free online image resizer with no sign-up required.