Image Compressor

Shrink JPG, PNG, and WebP images to meet upload limits, speed up websites, or send lighter emails, with a quality slider so you stay in control.

Private by design: This tool runs entirely in your browser using its built-in image engine. Your files are not uploaded to a server, and nothing you convert is stored or logged. See how in-browser processing works.

How to use the image compressor

Drop your images onto the upload area: JPG, PNG, and WebP all work, mixed batches included.
Choose a quality level. 75% is a strong default: much smaller files, little visible change.
Click Compress and compare the before/after sizes on each file.
Download images individually, or everything as a ZIP.

How this compressor works

JPG and WebP images are re-encoded at the quality you choose, that's where the big savings come from. PNGs are re-encoded losslessly, so their savings are smaller but never cost quality. And if compression can't beat your original, you get the original back unchanged: this tool never hands you a bigger "compressed" file.

Choosing a quality level

The default 75% roughly halves many photos with changes you'd need a side-by-side to spot. Use 60-70% when a hard size cap matters more than close inspection, and 85%+ when the image will be viewed large. The before/after sizes update per file, so you can convert again at a different setting until it's right.

When compression won't help, and what will

Files that were already compressed well shrink very little, that's the honest "already optimized" result, not a failure. Two moves usually save far more than squeezing quality further: if it's a screenshot or graphic saved as PNG, convert it to JPG or WebP; if the image is much larger in pixels than it needs to be, run it through the Image Resizer first: halving dimensions quarters the pixels.

Good to know

Each image keeps its own format: JPGs stay JPG, PNGs stay PNG, WebPs stay WebP.
JPG and WebP are compressed with the quality you choose. PNG is lossless, so its savings are smaller.
If compression can't make a file smaller, you get your original back unchanged: this tool never inflates a file.
Compressing a PNG with a transparent background? If it came from the Background Remover, this is the right next step: cut-outs compress well. A tiny image that also needs to be bigger can go through the Image Upscaler first.

Frequently asked questions

How much smaller will my images get?

Photos saved at high quality often shrink 50-80% at the 75% setting. Images that were already compressed shrink less, and if there's nothing to gain, we keep your original untouched.

Will compression make my images blurry?

At 70-85% quality, changes are hard to spot in normal photos. Heavy compression (below 60%) can soften fine detail and add artifacts: use the slider to find the balance you like, and convert again at a different setting any time.

Why did my PNG barely shrink?

PNG is a lossless format, so there's no quality slider to trade against size. If your PNG is a photo, converting it to JPG or WebP with our converters will save far more space.

Are my images uploaded anywhere?

No. Compression runs entirely in your browser: your images never leave your device.

Can I compress to an exact file size, like 200 KB?

There's no exact-size mode, encoders can't guarantee a target ahead of time. Practical approach: try 75%, check the result, and adjust the slider once or twice. Resizing dimensions first helps most when you're far over a cap.

What's the difference between compressing and converting?

Compressing keeps each file's format and squeezes it; converting changes format. For photos stored as PNG, conversion saves dramatically more than compression ever can.

Is image metadata removed?

Yes, the re-encode produces clean files without the original EXIF metadata (camera details, GPS location). That shrinks files a little and is generally a plus for sharing.

Can I mix JPG, PNG, and WebP in one batch?

Yes. Each file keeps its own format and is compressed appropriately.

Guides for this tool

HEIC vs JPG: Which Should Your Photos Use?HEIC gives you double the photos per gigabyte; JPG gives you a file that opens on anything made in the last thirty years. Here's how to decide which trade-off is yours.
How to Open HEIC Files on WindowsThe standard advice is one line: install HEIF Image Extensions from the Microsoft Store. For a lot of people that works. For a lot of others the photo still won't open afterwards, and almost nobody explains why. Here is the whole picture, including the case where the answer is that you can't.
PNG vs JPG: Which Image Format Should You Use?PNG and JPG solve different problems. Pick the wrong one and you get either a blurry logo or a 8 MB photo that email refuses to send. Here's the whole decision in a few minutes.
JPG vs WebP: Which Is Better?For photos on the web, WebP is simply the better JPG: same picture, quarter to a third fewer bytes. Off the web, the answer flips. This guide draws the line.
Which Photos Work with a Background RemoverAutomatic background removal is excellent on some photos and hopeless on others, and which one you have is predictable before you start. Here is what the model is reliable at, what defeats it, and what to do when the edge comes back rough instead of clean.

Image Compressor is one of 15 image tools, convert between formats, then compress, resize, crop, or rotate.