Image Compressor

Why compress images?

Large image files slow down web pages, fill up storage, and are awkward to email or upload. Compression reduces file size by lowering quality slightly or switching to a more efficient format like WEBP, often with little visible difference. This tool processes everything locally, so your images never leave your device.

JPG, WEBP, or PNG?

Use JPG for photographs, WEBP for the smallest size with good quality on modern browsers, and PNG when you need a lossless image or transparency. Drag the quality slider to balance size against sharpness in real time.

How to compress an image

1. Add your image. Drag a file onto the box, click to browse, or paste from your clipboard. JPG, PNG, and WEBP are all supported, and you can drop several at once for batch compression.
2. Pick a target. Drag the quality slider to trade size against sharpness, or switch the output format to WEBP for the smallest result. The estimated output size updates live as you adjust.
3. Download. Save the compressed image, or grab everything as a ZIP when you compressed a batch. Nothing is uploaded — the work happens in your browser.

When image compression helps

Compression is worth doing whenever file size matters more than pixel-perfect fidelity. Common cases include speeding up a website or blog, where lighter images improve load time and search ranking; fitting photos under an email or upload limit; saving storage on a phone or cloud drive; and preparing images for messaging apps that re-compress anything too large. For product listings, portfolios, and social posts, a well-compressed WEBP usually looks identical to the original at a fraction of the size.

Does compressing reduce quality?

Lossy compression (JPG and WEBP) discards detail the eye is least likely to notice, so a moderate setting often looks identical to the source while cutting size dramatically. Push the quality too low and you may see blocky artifacts or banding in smooth gradients. PNG and lossless WEBP keep every pixel but compress less. The live preview lets you find the point where the file is small but still looks clean — there is no single "right" number, so adjust until it looks good to you.

Frequently asked questions

Are my images uploaded to a server? No. Compression runs entirely in your browser, so the file never leaves your device — useful for private or sensitive images.

What's the smallest format? WEBP is usually the smallest for both photos and graphics on modern browsers. Use JPG if you need maximum compatibility with older software.

Can I compress many images at once? Yes. Drop multiple files and download them together as a ZIP.

Is it free? Yes, with no account, no watermark, and no limit on how many images you compress.