Image Compressor
Compress and resize JPG, PNG and WebP images in bulk, free. Runs in your browser — set a max size and dimension; nothing is uploaded.
- ✓ Runs in your browser — nothing uploaded
- ✓ No sign-up
- ✓ Free, no limits
This free image compressor shrinks and resizes JPG, PNG and WebP images so they upload faster and fit size limits — and it processes several at once. Set a maximum width/height and a target file size, choose your images, and each one is compressed in your browser and offered back for download with its before-and-after size and the percentage saved.
It solves the everyday “your image is too large” problem: attachments that bounce, profile photos rejected for exceeding a limit, product images that slow a page down, or a batch of holiday photos too big to email. Resizing the dimensions is usually where the real savings come from — a 4000-pixel-wide phone photo displayed at 1000 pixels is carrying four times more data than it needs — so the tool caps dimensions and compresses quality together, running the heavy work off the main thread so the page stays responsive.
Everything happens locally in your browser; your images are never uploaded, there is no watermark and no signup, and you can compress as many as your device's memory allows. Worked example: a 5 MB photo capped at 1920px and 1 MB might come out around 0.4 MB — a 90%+ reduction — with no visible difference on screen.
Frequently asked questions
How much smaller will my images get?
It depends on the original, but large phone photos routinely shrink by 80–95%, especially when you also cap the dimensions. Each result shows its exact before/after size and percentage saved.
Does compressing reduce quality?
There is some quality reduction by design — that is how the file gets smaller — but at sensible settings it is invisible on screen. Most size savings actually come from resizing dimensions, which is lossless in perceived quality when the image was larger than needed.
Can I compress several images at once?
Yes. Select multiple files and each is compressed and offered for individual download, with its own size savings shown.
Are my images uploaded?
No. Compression runs entirely in your browser (using a web worker so the page stays responsive) — nothing is sent to a server.