Resize JPG, PNG, and WebP images to exact pixel dimensions or by percentage. Lock aspect ratio, batch resize up to 20, and download JPG, PNG or WebP.

Who Uses Image Resizer

Applicants resizing a photo and signature to the exact pixel and KB limits a government or exam portal demands before it will accept the upload. Job seekers fitting a profile picture into a site's size cap. Sellers preparing product images to a marketplace's required dimensions. Anyone emailing photos that are too large to send at full camera resolution.

Image Resizer Features

Custom Dimensions: Set exact width and height in pixels with aspect ratio lock
Social Media Presets: One-click presets for Instagram, Twitter, LinkedIn, Facebook, YouTube
Batch Resize: Upload and resize up to 20 images at once - download all as ZIP
100% Browser: All resizing happens locally using Canvas API - no uploads

How to Use Image Resizer

Resize images in three steps

Upload Images: Drop one or multiple images - PNG, JPG, WebP supported
Set Size: Enter dimensions or pick a social media preset
Download: Download resized images individually or as ZIP

Frequently Asked Questions

Is the image resizer free?

Yes, resize unlimited images with no signup. Custom pixel dimensions, 7 social media presets (Instagram, Twitter, LinkedIn, etc.), batch resize up to 20 images, quality control, and ZIP download are all free - Canvas API processes everything locally.

What social media presets are available?

Instagram Post (1080×1080), Instagram Story (1080×1920), Twitter/X (1200×675), LinkedIn (1200×627), Facebook Cover (820×312), YouTube Thumbnail (1280×720) and HD (1920×1080), plus Indian form presets: PAN, UPSC/SSC, Passport, Aadhaar and Signature.

Can I resize multiple images at once?

Yes! Upload up to 20 images and resize them all to the same dimensions. Download individually or all as a ZIP file.

Does it maintain aspect ratio?

Yes, aspect ratio lock is on by default. Click the lock icon to toggle between locked (proportional) and free (stretch) mode.

What output formats are supported?

JPG, PNG, and WebP. You can also adjust quality from 10% to 100% for JPG and WebP outputs.

Is my image data safe?

Yes, 100%. All resizing uses the browser's Canvas API. Your images never leave your device.

Related: image resizer, resize image online, bulk image resizer, photo resizer, image resizer pixels, resize image for instagram

3-step workflow · seconds

Resize images in three steps

From camera-sized photos to the exact size you need: no sign-up, no upload, no watermark.

STEP 01
Add your images
Drop up to 20 PNG, JPG, WebP, GIF or BMP files, each up to 20 MB.
Read on this page only
STEP 02
Set the size
Type width and height, pick a percentage, or tap one of the presets.
Lock keeps the shape
STEP 03
Download
Save each resized image, or all of them in one ZIP.
JPG, PNG or WebP

Guide

How to use this image resizer

Every image is redrawn on a canvas at the new size, then saved in the format you pick. Nothing leaves your device.

Updated for 2026: batch progress, Cancel and a WebP check for Safari

1
Pixels for an exact box
Type the width and height a site or form asks for. With the lock on, typing one side fills in the other.
2
Percent for a batch
Scale from 5% to 200%. Each image scales by its own size, so a mixed batch keeps every shape.
3
Presets for common jobs
7 sizes for posts and banners, and 5 for Indian form photos and signatures.
4
Format last
JPG for photos, PNG for sharp graphics and transparency, WebP for small files in Chrome, Edge or Firefox.

Guide

Resizing without losing quality

Four habits that keep resized images sharp.

Direction

Shrink, don't blow up

Making an image smaller keeps it sharp. Making it bigger can only guess new pixels, so it turns soft.

Start from the largest copy
Avoid going over 100%
Keep the original

Shape

Keep the lock on

With the lock on, a different shape is centre-cropped, so faces never get squashed.

Lock for photos
Unlock only to stretch
Check the crop

Format

Pick the right format

JPG suits photos, PNG suits logos and screenshots, WebP is usually smallest.

JPG for photos
PNG for text and logos
WebP for the web

Batch

Same size, one pass

Load up to 20 images, set the size once, and grab everything in a ZIP.

One setting for all
Progress as it goes
Cancel any time

Modes

Crop, stretch or scale: what each setting does

The same target size can be reached three ways. The lock and the unit decide which.

Lock on, new shape

The image is centre-cropped to fill the box. Edges are trimmed, nothing is stretched.

Lock off

The image is stretched or squeezed to the exact width and height, even if it distorts.

Percent

Each image keeps its own shape and scales by the same percentage.

Presets

Set a fixed box and turn the lock on, so photos are cropped to that shape.

Transparency

PNG and WebP keep it. JPG has no transparency, so the studio fills it with white.

Smoothing

The canvas uses its high-quality smoothing setting. The exact method is up to your browser.

Guide

How different people use the resizer

One studio, very different size limits.

Form and exam applicants

Strict upload rules

Portals often ask for a photo and signature at a set size. Resize here, then shrink the file if a KB limit applies.

Typical setting: form photo preset · then compress to the KB cap

Social media teams

Many sizes

One photo, several shapes. Run the same image through a few presets.

Typical setting: lock on · one preset per export

Online sellers

Matching listings

Marketplaces look neater when every product photo has the same size.

Typical setting: pixel box · batch of 20 · ZIP

Anyone sending photos

Smaller attachments

Camera photos are huge. Scale them down before you email or upload them.

Typical setting: percent mode · JPG quality around 80-90

Limits

What the studio can and can't do

The numbers come straight from the tool, so you know before you start.

Batch

How much you can resize at once.

20 images per batch
20 MB per image
Sides up to 10000 pixels
One size for the whole batch

Output

What you get back.

JPG, PNG or WebP
Quality 10 to 100 for JPG and WebP
Size added to the file name
One file or a ZIP

Browser limits

Things your browser decides.

Safari can't save WebP from a canvas
Animated GIFs keep one frame
No KB target here

Need a file under a set size in KB? Resize here first, then use the Image Compressor.

Guide

Keeping your image sizes consistent

A few habits that save you from resizing the same photo twice.

1
Keep a size list
Write down the sizes each site or form wants. Next time you just type them in.
2
Keep the originals
Resize copies, never the only file. A small copy can't be made big again without blur.
3
Name by size
The studio adds the size to each file name, like photo_1080x1080.jpg, so copies don't get mixed up.
4
Batch the same job
Group images that need the same size and resize them together in one ZIP.

Formats

JPG vs PNG vs WebP after resizing

The format decides file size and whether transparency survives.

Feature	JPG	PNG	WebP
Transparency	✗ Filled white	✓ Kept	✓ Kept
Quality setting	✓ 10 to 100	None (lossless)	✓ 10 to 100
Best for	✓ Photos	✓ Logos, screenshots	✓ Small web files
Size vs JPEG (Google)	Baseline	Larger for photos	✓ 25-34% smaller
Saved in Safari	✓ Yes	✓ Yes	✗ No

Pro tips

Pro tips for resizing

Small checks that make the result look right first time.

Centre your subject

With the lock on, the edges get trimmed. Keep faces and text near the middle.

Mixed batch? Use percent

Pixel mode crops every image to one box. Percent keeps each shape.

Don't upscale small photos

Over 100% makes a bigger but softer image. Start from a larger source if you can.

Logo on a page?

Pick PNG or WebP so a transparent background stays transparent.

Check the form's rules

Form photo presets are a start. Always compare with the size the form asks for.

ZIP for two or more

With two or more results, one ZIP saves a lot of clicks.

On an iPhone?

Pick JPG or PNG. Safari can't save WebP from a canvas.

Too many KB?

Resize first, then shrink the file with the Image Compressor.

Pro tip: size in pixels, then weight in KB

Most upload rules have two limits: the size in pixels and the file size in KB. Hit the pixel size here, then compress to the KB limit. Doing it the other way round wastes quality.

Which one

Exact pixels, or a percentage?

Pixels give every image the same box. Percent keeps every image's own shape.

Forms · posts · listings

pxexact box

Pixels

Every image comes out the same size. With the lock on, images of another shape are centre-cropped to fit.

When a site sets the size

Email · sharing · archives

%own shape

Percent

Every image shrinks by the same amount and keeps its shape. Nothing is cropped.

When you just need smaller

Verdict: use pixels when a site or form names a size, and percent when you just want a set of photos smaller without cropping.

Use cases

Who uses this image resizer

The same studio, six everyday jobs.

Students

Photo and signature for exam and admission forms.

Job seekers

A profile photo that fits a job site's upload box.

Sellers

Product photos in one matching size.

Social media managers

One picture in several post sizes.

Families

Holiday photos small enough to email.

Bloggers

Post images sized to the page column.

Want WebP for a whole folder? Try Image to WebP.

FAQ

Frequently asked questions

Quick answers about sizes, presets, formats and privacy.

Is the image resizer free?

What social media presets are available?

Can I resize multiple images at once?

Yes! Upload up to 20 images and resize them all to the same dimensions. Download individually or all as a ZIP file.

Does it maintain aspect ratio?

Yes, aspect ratio lock is on by default. Click the lock icon to toggle between locked (proportional) and free (stretch) mode.

What output formats are supported?

JPG, PNG, and WebP. You can also adjust quality from 10% to 100% for JPG and WebP outputs.

Is my image data safe?

Yes, 100%. All resizing uses the browser's Canvas API. Your images never leave your device.

Reviews

What people say

Reviews from people who used this tool.

Loading reviews…

Presets

Popular presets

Jump to a version of this tool already set up for a specific need.

Who Uses Image Resizer

Image Resizer Features

Custom Dimensions: Set exact width and height in pixels with aspect ratio lock

Social Media Presets: One-click presets for Instagram, Twitter, LinkedIn, Facebook, YouTube

Batch Resize: Upload and resize up to 20 images at once - download all as ZIP

100% Browser: All resizing happens locally using Canvas API - no uploads

Frequently Asked Questions

Is the image resizer free?

What social media presets are available?

Can I resize multiple images at once?

Yes! Upload up to 20 images and resize them all to the same dimensions. Download individually or all as a ZIP file.

Does it maintain aspect ratio?

Yes, aspect ratio lock is on by default. Click the lock icon to toggle between locked (proportional) and free (stretch) mode.

What output formats are supported?

JPG, PNG, and WebP. You can also adjust quality from 10% to 100% for JPG and WebP outputs.

Is my image data safe?

Yes, 100%. All resizing uses the browser's Canvas API. Your images never leave your device.

Image tool · Free

Resize Images to Any Size, Up to 20 at Once

Set exact pixels or a percentage, or tap a preset for social posts and form photos. Download JPG, PNG or WebP, one by one or as a ZIP. Your images stay in your browser.

Resize Studio

Pixels or percent · presets · JPG, PNG, WebP · ZIP download

Stays in your browser Free · No sign-up

Your images

Drop your images here

or click to browse (up to 20 at a time)

PNG, JPG, WEBP, GIF, BMPMax 20MBUp to 20 files

New size

Width

Height

Lock on: a different shape is centre-cropped to fill, never stretched.

Presets

Govt / KYC photo India

Form photo presets convert the labelled size in cm to pixels at 200 DPI. Check your form's own rules.

Format

Quality90%

Resized images

Images

New size

1080×1080

Format

JPG

No images yet

Add images on the left. Resized copies appear here.

No sign-up needed No watermark Batch and ZIP download No image sent to a server

Images per batch: 20
One-click presets: 12
Output formats: 3
Images uploaded: 0

Stays in your browserImages are resized on this page with the Canvas API. No image file is uploaded.

20 at a timeResize a whole batch to one size, then download every file in a single ZIP.

No stretched facesWith the lock on, images are centre-cropped to the new shape instead of squashed.

JPG, PNG or WebPPick the output format and quality. Transparent images turn white behind JPG.

What's next

Finish your images

Tools that pick up where this one leaves off.

Feature

JPG

PNG

WebP

Transparency

✗ Filled white

✓ Kept

Quality setting

✓ 10 to 100

None (lossless)

✓ 10 to 100

Best for

✓ Photos

✓ Logos, screenshots

✓ Small web files

Size vs JPEG (Google)

Baseline

Larger for photos

✓ 25-34% smaller

Saved in Safari

✓ Yes

✗ No

Image Resizer - Free Online Tool

Resize images in three steps

Add your images

Set the size

Download

How to use this image resizer

Pixels for an exact box

Percent for a batch

Presets for common jobs

Format last

Resizing without losing quality

Shrink, don't blow up

Keep the lock on

Pick the right format

Same size, one pass

Crop, stretch or scale: what each setting does

Lock on, new shape

Lock off

Percent

Presets

Transparency

Smoothing

How different people use the resizer

Form and exam applicants

Social media teams

Online sellers

Anyone sending photos

What the studio can and can't do

Batch

Output

Browser limits

Keeping your image sizes consistent

Keep a size list

Keep the originals

Name by size

Batch the same job

JPG vs PNG vs WebP after resizing

Pro tips for resizing

Centre your subject

Mixed batch? Use percent

Don't upscale small photos

Logo on a page?

Check the form's rules

ZIP for two or more

On an iPhone?

Too many KB?

Exact pixels, or a percentage?

Pixels

Percent

Who uses this image resizer

Students

Job seekers

Sellers

Social media managers

Families

Bloggers

Frequently asked questions

What people say

Popular presets

More free image tools

Image Resizer - Free Online Tool

Resize Studio

Your images

Drop your images here

New size

Presets

Format

Resized images

Finish your images

Resize images in three steps

Add your images

Set the size

Download

How to use this image resizer

Pixels for an exact box

Percent for a batch

Presets for common jobs

Format last

Resizing without losing quality

Shrink, don't blow up