Are my images uploaded anywhere?

No. Every part of the process runs inside your browser. Your images are never sent to us or to anyone else, and you can confirm this by disconnecting from the internet after the page loads: the tool keeps working.

How much smaller will my image get?

It depends entirely on the image. Photos straight from a camera usually shrink a lot, while a file that has already been compressed may barely change. Rather than promise a number, the tool measures your specific image and shows you the exact result.

Will my image look worse?

The tool compares every version it makes against your original and only returns one that still looks the same. If it cannot make a file smaller without visible damage, it hands back your original and says so.

Why did my JPG come back as a WebP?

Because it was smaller. WebP often stores a photograph in far less space than JPEG at the same visual quality, and every current browser can display it. If you need a particular file type, pick it from the “Save as” list before adding your images and you will get that one.

What file types can I use?

JPG, PNG, WebP, AVIF, BMP, and GIF, up to 50 MB each. Which formats you can save as depends on your browser, and the tool checks what yours supports rather than assuming. Animated files are left alone on purpose (see below).

Why does it say my image is already optimized?

Because nothing it tried was meaningfully smaller than what you already had. That is a genuine result and a useful one: re-saving an image that is already efficient just loses quality for no benefit.

Can I compress an animated GIF?

No, and the tool will tell you so rather than quietly doing the wrong thing. This kind of compression reads a single frame, so an animation would come back as a still picture that looks fine and has lost its movement. We would rather refuse than hand you that.

Does compressing remove my photo's location data?

Yes, in most cases. Re-saving an image usually drops the hidden metadata a camera or phone attaches, including GPS coordinates. That is often useful before sharing a photo publicly, but do not rely on it as a privacy tool.

Free Image Compressor: JPG, PNG, and WebP

Image compression without visible quality loss

Can you tell the difference?

Drag the slider to compare the compressed image against the original. The file is 80% smaller (213 KB down to 42 KB), and it is the tool on this page that did it.

The same photograph after compression, 80% smaller and visually identical

COMPRESSED

42 KB

ORIGINAL

213 KB

Shadow detail survives
Fine texture is still there

How it works

Three steps to a smaller file

1
Add your images
Drag them in, paste from your clipboard, or browse your files. You can add several at once.
2
We find the smallest version
Each image is saved several different ways and compared, so the best method wins on its own merit rather than by a fixed rule.
3
Download
Save the results. Nothing was sent anywhere, so there is nothing to delete afterwards.

Why this one

Why use this image compressor

It picks the format, so you don't have to

There is no single best format. Photos and screenshots compress in completely different ways, so the tool tries each one your browser supports and keeps whichever comes out smallest.

02
Or choose the format yourself
Need a PNG because that is all your website accepts? Pick it from the list. Every other format is still tested, so if one of them would have been much smaller you are told, and can take that instead.
03
You don't have to guess at a quality number
By default the tool measures how close each result looks to your original and returns the smallest one that still matches. If someone has handed you a specific quality or file size to hit, you can switch to Manual and set it yourself.
04
It will tell you when it can't help
If your image is already well compressed, you get told that plainly instead of being handed a file that is barely different (or worse, larger).
05
No limits, no queue
The work happens in your browser, so there is no server to wait for and nothing for us to ration. Run it as many times as you like.
06
Several files at once
Add a whole batch. Each one is handled separately and gets its own result, so one awkward file cannot spoil the rest.
07
Transparency is kept
If your image has a transparent background, formats that would flatten it are skipped automatically rather than quietly ruining it.

Who it's for

When you'd use it

An online seller
Getting a batch of product photos small enough that a shop page loads quickly, without them looking soft or blotchy.
Someone sending an email
Squeezing a screenshot or scan under an attachment size limit, at the point of sending rather than after it bounces.
A developer
Cutting page weight before a deploy, without adding another step to the build or another service to pay for.

FAQ

Frequently asked questions

Still unsure about something? These cover the questions we hear most.

Keep going

Related tools

From the blog

Guides for this tool

Guides

WebP vs JPG vs PNG: Which Format to Use for What

WebP makes smaller files than JPG at the same visible quality, PNG is the only one of the three that keeps a transparent background, and JPG is the one every upload form and print shop accepts. Here is which to use for photos, logos, screenshots, and forms.

Michael Page

Guides

How to Compress an Image to 100 KB (Without Making It Ugly)

A portal just refused your photo for being over 100 KB. Here is the 30-second fix, what the quality really looks like once you get there, and what to do when a photo refuses to shrink that far.

Michael Page

Guides

How to Convert HEIC to JPG (and Why iPhones Use HEIC at All)

iPhone photos save as HEIC — great for storage, annoying for everyone else. Here’s the ten-second free fix, plus the iPhone settings that stop the problem coming back.

Michael Page

Free Image Compressor

Add your imagesDrop your images here

Compression settings

Can you tell the difference?

Three steps to a smaller file

Add your images

We find the smallest version

Download

Why use this image compressor

It picks the format, so you don't have to

Or choose the format yourself

You don't have to guess at a quality number

It will tell you when it can't help

No limits, no queue

Several files at once

Transparency is kept

When you'd use it

An online seller

Someone sending an email

A developer

Frequently asked questions

Related tools

Guides for this tool

WebP vs JPG vs PNG: Which Format to Use for What

How to Compress an Image to 100 KB (Without Making It Ugly)

How to Convert HEIC to JPG (and Why iPhones Use HEIC at All)

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