Image Compressor
Shrink JPG, PNG, and WebP image file sizes — in your browser, no upload.
Examples
Shrink a photo
Input
4 MB JPEG from a camera
Output
WebP at 80% → often under 1 MB
Compress a screenshot
Input
Large PNG screenshot
Output
WebP → a fraction of the size
Batch compress
Input
20 product images
Output
All compressed, one ZIP download
About this tool
This free online image compressor shrinks JPG, PNG, and WebP files in your browser — just drop an image in and the compressed version appears instantly, with the size saved shown right there. WebP output gives the smallest files while keeping quality high, and you can fine-tune the quality or keep the original format. Nothing is uploaded, so it's fast and completely private.
How to use
- Drop in one or more images.
- They're compressed automatically — see the size saved for each.
- Adjust the format or quality if you want smaller or sharper.
- Hit Preview to see the compressed image full-size and check the quality before you download.
- Download each image, or all of them as a ZIP.
Getting the best result
- Format: choose WebP for the web (smallest at the same quality), JPEG for maximum compatibility, or PNG for graphics with transparency.
- Quality: around 80 is the sweet spot — big savings with no visible loss. Drop lower only until you notice a difference.
- Resize first if the image is far larger than it's displayed — that's often a bigger saving than compression alone.
Resize as well as compress
To change an image's dimensions, crop, or rotate it, the image resizer does all of that in one place. For the full approach, see our guides to compressing images for the web and choosing an image format.
Frequently asked questions
Is this image compressor free?
Yes — it's a completely free online image compressor with no sign-up, no watermark, and no limits. Compress as many images as you like.
Are my images uploaded to a server?
No. Images are compressed entirely in your browser, so they never leave your device. It's faster and fully private.
How does it reduce the file size?
It re-encodes each image at the quality you choose. WebP — the default — packs the most detail into the fewest bytes, so it usually produces the smallest files while keeping quality high.
Will compression hurt the quality?
At the default quality the difference is hard to see, but the file is much smaller. Lower the Quality slider for smaller files, or raise it for near-original quality.
Which formats can I compress, and which should I download as?
You can drop in JPG, PNG, WebP, and other formats your browser can read, then choose the output: WebP for the smallest files and the best choice for websites; JPEG for photos that need to work everywhere; or PNG for lossless quality and transparency (best for logos, icons, and screenshots).
Can I compress several images at once?
Yes. Drop in multiple images and they're all compressed instantly. Download them individually or grab them all as a single ZIP.
What if a file gets bigger instead of smaller?
Some already-optimized images can't shrink further; the tool shows 'already small' so you can keep the original. Switching format or lowering quality usually helps.
Learn more
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