What is Compress Image and how does it work?

Compress Image reduces the file size of a photo so it loads faster and takes up less space, without any visible change to the picture.

How do I use Compress Image online?

Upload your file using the box above — drag it in, browse for it, or bring it in from your cloud storage. A preview appears so you can check you've picked the right file. Run Compress Image, then download the result. You can rename it before you save it.

Is my file secure when I use Compress Image?

Yes. The file you send to Compress Image travels over an encrypted HTTPS connection and is processed automatically on our servers. It is never made public, never shared with anyone, and nobody reads it.

Does HuntPDF store my files after Compress Image has run?

No. Your upload is deleted the moment Compress Image finishes with it, and the file it produces is removed as soon as you have downloaded it, or when you upload another file, or when you close the page. Nothing is kept, and nothing is used to train anything.

Will the original quality and formatting be maintained?

At the default setting the picture looks the same to the eye — most photos carry far more data than a screen actually shows. Push the compression very hard and you'll start to see soft edges around fine detail.

Can I use Compress Image on mobile?

Yes. Compress Image works in any modern browser on phones and tablets — iPhone, iPad or Android — with nothing to install. You can upload straight from your device or from your cloud storage.

Can I rename my file before downloading it from Compress Image?

Yes. The file Compress Image gives you back keeps the name of the file you uploaded by default. If you'd rather call it something else, edit the name in the field next to the download button before you save it.

Do I need to install any software to use Compress Image?

No. There is nothing to download, install or sign up for — Compress Image is used from your browser and does the work on our servers, so it behaves the same on Windows, macOS, Linux, Android and iOS.

How long does Compress Image take?

Most files are finished in a few seconds. A large or page-heavy file takes a little longer, because Compress Image runs on our servers rather than on your device — but you won't be waiting around. You can upload files up to 250MB.

Is Compress Image free to use?

Yes. Compress Image is free, with no signup, no watermark on the result and no daily limit for normal use.

What does Compress Image do?

It reduces the file size of your photos by re-saving them more efficiently, optionally in a smaller format or at a smaller width.

Will Compress Image make my photos blurry?

On Recommended, most people see no difference on screen. Smallest can show softness when you zoom in, so use it for thumbnails and uploads.

Which formats can I compress?

JPG, PNG, WebP and HEIC, plus GIF, BMP, TIFF and AVIF. You can keep the same format or switch to JPG, WebP or PNG.

Can I compress an image to a specific size, like 100 kB?

Yes. Type the size in 'Aim for a file size' and the tool works towards it.

Can I compress many images at once?

Yes. Add them all together and the button changes to 'Compress 12 images', or however many you added.

Why is my image the same size after compressing?

It was already well optimised. Rather than give you a bigger or worse file, the tool keeps the original.

Does compressing images help my website?

Yes. Smaller images load faster, which helps visitors on mobile data and counts towards page speed in search results.

Compress Image Online – Free, No Watermark, No Signup

Drop your file on the target

Several files · up to 260 MB each · deleted after processing

Drop your files here

Choose files

JPG, PNG, WebP, HEIC
Several at once
Never bigger than the original
Up to 260 MB per file

Processed on our secure servers over HTTPS. Your files are deleted automatically after processing.

Compress Image makes JPG, PNG, WebP and HEIC photos much smaller so they upload faster, fit under a form's size limit and send quickly by email. You can compress several images at once and choose how far to go.

How to compress an image

Drop one or more images on the page, or pick them from Google Drive, Dropbox or OneDrive. Choose a level: Smallest (for email and uploads), Recommended, or High quality (light compression). You can also save as JPG, WebP or PNG, cap the width at 2560, 1920 or 1280 pixels, and type a target size in kB, such as 200. Press Compress, then download the result, rename it, or send it on WhatsApp.

When to compress images

A job applicant squeezes a passport photo under a portal's 200 kB limit. An estate agent shrinks forty listing photos before they go on the website. A parent on a slow connection compresses holiday photos before sharing them in the family group.

Compress Image settings explained

Recommended keeps photos looking the same at a fraction of the size, and it's where most people should start. Smallest pushes harder and suits thumbnails and attachments. The width limit matters most for phone photos, which are often 4000 pixels wide or more: bringing them down to 1920 pixels saves far more space than compression alone.

If a PNG has no transparent areas, saving it as JPG or WebP makes it much smaller, and the tool tells you when that applies. If an image is already as small as it can get without looking worse, you get the original back unchanged.

Faster pages, lighter emails

On a website, heavy images are one of the main reasons pages load slowly, and page speed affects both visitors and search rankings. Compressing before you upload is one of the easiest fixes. For email, a 300 kB photo goes through where a 6 MB one might bounce.

Need exact dimensions or a different shape? Continue with Resize Image or Crop Image. To put several photos into one document, use Image to PDF.

Frequently asked questions

What does Compress Image do?: It reduces the file size of your photos by re-saving them more efficiently, optionally in a smaller format or at a smaller width.
Will Compress Image make my photos blurry?: On Recommended, most people see no difference on screen. Smallest can show softness when you zoom in, so use it for thumbnails and uploads.
Which formats can I compress?: JPG, PNG, WebP and HEIC, plus GIF, BMP, TIFF and AVIF. You can keep the same format or switch to JPG, WebP or PNG.
Can I compress an image to a specific size, like 100 kB?: Yes. Type the size in 'Aim for a file size' and the tool works towards it.
Can I compress many images at once?: Yes. Add them all together and the button changes to 'Compress 12 images', or however many you added.
Why is my image the same size after compressing?: It was already well optimised. Rather than give you a bigger or worse file, the tool keeps the original.
Does compressing images help my website?: Yes. Smaller images load faster, which helps visitors on mobile data and counts towards page speed in search results.