🗜️ Image Compressor
Shrink JPG, PNG and WebP images without losing visible quality.
Original
Compressed
How to compress an image
- Drop your image onto the box above, or click it to pick a file.
- Drag the quality slider. Lower quality means a smaller file.
- Compare the original and the compressed preview side by side.
- When you are happy with the result, click download.
Which format should I pick?
JPEG is the safest choice for photographs. It produces the smallest files and is supported everywhere, but it cannot store transparency — transparent areas become white.
WebP usually produces files 25–35% smaller than JPEG at the same visual quality, and it does support transparency. Every current browser supports it, but some older software does not.
PNG is lossless, so quality never drops — but files stay large. Use it for screenshots, logos, and anything with sharp edges or transparency.
What quality setting should I use?
- 90–100% — almost indistinguishable from the original. Modest size saving. Good for print or archival.
- 75–85% — the sweet spot for websites. Most people cannot tell the difference, and files are often 60–80% smaller.
- 50–70% — visible softening on close inspection, but fine for thumbnails and previews.
- Below 50% — noticeable blocky artefacts. Only useful when file size matters more than looks.
Why compress images at all?
Images are usually the largest thing on a web page. A page that loads in two seconds instead of eight keeps far more visitors, and search engines take loading speed into account when ranking pages. Compressing images is the single easiest way to make a site faster.
It also matters for email attachments, upload limits on forms, and storage on your phone.
Is this safe to use with private photos?
Yes. Your image is read by your browser, drawn onto a canvas, and re-encoded — all on your own device. No copy is sent anywhere. You can open your browser's network inspector and watch: there is no upload request.
Does compressing reduce the image dimensions?
No. This tool keeps the width and height exactly the same and only reduces file size. If you also want to change dimensions, use our Image Resizer.
Can I compress the same image twice?
You can, but you should not. Lossy compression discards detail each time. Always compress from the original file.
Why did my PNG get bigger?
PNG is lossless, so re-encoding a photograph as PNG can produce a larger file than the JPEG you started with. For photos, choose JPEG or WebP.
Is there a file size limit?
Not one we set. Very large images (above roughly 30 megapixels) may be slow on older phones because everything happens in your device's memory.