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Image tool

Compress images online — free, no upload, no sign-up

Shrink JPG, PNG and WebP files by up to 80% with zero visible quality loss — right in your browser. Nothing is uploaded, so you can compress sensitive photos with total peace of mind.

Perfect for
Website images that load too slowly Email attachments over the size limit Etsy & marketplace product photos Images for an app or landing page Bulk-optimising a whole photo folder
How to compress your images
1
Add imagesClick the upload area or drag files in. You can select many at once.
2
Choose settingsPick the output format, quality level and a max width for web use.
3
Hit compressWatch the saved-percentage rise as each file is optimised locally.
4
DownloadGrab the smaller files one by one, ready for your site or store.

Settings

Between 70 and 85 is the sweet spot: the file gets much smaller while the difference stays invisible to the eye.

Images wider than this are scaled down proportionally. Enter 0 to keep the original size.

Tip: for web use, 1600–1920 px is already more than most screens need.

Click to choose images, or drag them here

JPG, PNG, WebP, GIF (first frame) — select as many as you like

How to compress an image without ruining it

Your web page will thank youEvery extra 100 KB of images costs you visitors. Studies consistently show that even a 0.1 s delay in load time cuts conversion — and a compressed photo is the fastest, most reliable win available.

Image compression comes in two flavours. Lossless compression rewrites the file more efficiently and keeps every single pixel — the result is usually only 5–20% smaller. Lossy compression throws away detail your eyes are unlikely to notice, which is how you get 70–90% reductions.

For photographs, lossy is almost always the right answer. The quality slider above controls how aggressive that discard is: at 100 the encoder keeps nearly everything, at 20 you will start seeing blocky artefacts and colour banding. Somewhere around 75 sits the point where most people cannot tell the two images apart in a side-by-side test.

Choosing the right format

FormatBest forTransparencyTypical saving
JPEGPhotos, gradients, anything with millions of coloursNo70–90%
WebPModern web use, replaces both JPEG and PNGYes75–95%
PNGScreenshots, logos, line art, transparent graphicsYes0–20% on photos

Why your file is not getting smaller

  • The source is already compressed. A photo downloaded from social media has usually been squeezed twice already.
  • You chose PNG for a photo. PNG is lossless — it barely shrinks photographic content. Switch to JPEG or WebP.
  • The image is smaller than your max width. No resizing happens, so the only saving comes from the quality setting.
Rule of thumb: for a website, aim to keep every image under 200 KB and the whole page under 1.5 MB. That single change usually improves load time more than any other optimisation.

Frequently asked questions

Is this image compressor really free?
Yes. There is no sign-up, no daily quota and no watermark added to the files you download. The site is paid for by display advertising, which is why nothing sits behind a paywall.
Are my images uploaded to a server?
No. Every file is decoded, resized and re-encoded inside your browser using JavaScript and the HTML canvas element. Your images never leave your device, which is what makes this safe for ID scans, contracts, medical letters and family photos.
How much smaller will my images get?
For a typical camera photo at quality 75 with a 1920 px width cap, expect a 60 to 80 percent reduction. Files that have already been optimised, such as anything downloaded from a social network, may shrink very little. In that case the original is kept, so the tool never hands you a larger file than you gave it.
What does the exact file size option do?
Instead of guessing a quality level, the tool searches for the highest quality that still fits under a size you set in kilobytes. It is built for portals that reject anything above a hard limit, such as visa forms or job application systems.
Which format should I choose — JPEG, WebP or PNG?
JPEG for photographs, WebP when you want the smallest file a modern browser can display, and PNG only when you need transparency. PNG is lossless, so on a photo it will barely shrink the file at all.
Can I compress a whole folder at once?
Yes. Select or drag in as many images as you like. Each one is processed on your own machine, and the saved percentage is reported per file so you can see which ones benefited most.