TidyFigure

Image Compressor

  • 100% free
  • No sign-up
  • Files stay on your device

To reduce an image's file size, re-save it at a lower quality and, if it's larger than you need, a smaller width. A quality of 70–80% usually looks the same as the original but makes JPG photos 60–80% smaller. Drop your images into the tool below: they are compressed on your device and never uploaded.

Also known as: compress image · reduce image size · photo compressor · image size reducer · compress JPEG

Drop images here or click to choose JPG, PNG or WebP · as many as you like

75% quality usually looks identical to the original while cutting the file size by 60–80%. Lower it for email and web pages; raise it for printing.

Compressed images

Your compressed images will appear here.

Your files are processed on your device and never uploaded.

How image compression works

Photos from phones and cameras are saved at very high quality, often 3–8 MB each. Most of that detail is invisible on a screen. Compression throws away information your eyes are unlikely to notice, such as tiny colour variations in a blue sky, and stores the rest more efficiently.

This compressor redraws each image in your browser and saves it again at the quality you choose. Nothing is uploaded to a server, so it works with private photos and documents, and it's fast even on large batches.

Which settings to use

UseQualityMax widthTypical result
Email attachments70%1600 px200–400 KB per photo
Website or blog75%1920 px150–350 KB
Online forms (under 100 KB)60%1000 px60–120 KB
Printing90%Keep originalClose to original

JPG, PNG or WebP?

  • JPG is best for photos. It compresses well and every device can open it. It doesn't support transparency, so transparent areas become white.
  • PNG is lossless, which is ideal for screenshots, logos and graphics with sharp edges, but it makes photos large. Re-saving a PNG as PNG barely shrinks it, so the default Auto setting saves PNGs as WebP, which keeps transparency and is usually far smaller.
  • WebP is a modern format made by Google. At the same visual quality it's usually 25–35% smaller than JPG and supports transparency. All current browsers support it, but some older software and upload forms don't.

Why resizing matters as much as quality

File size grows with the number of pixels. A 4000 × 3000 photo has 12 million pixels; resized to 2000 × 1500 it has 3 million, a quarter as many, before any compression. If an image will only be shown at 1200 pixels wide on a website, setting a max width is the single biggest saving you can make.

Tips

  • Compress a copy and keep your originals. Every time you re-save a JPG, it loses a little more detail.
  • If a site demands a file "under 200 KB", start at 70% quality and 1600 px wide, then lower the quality step by step.
  • If a result isn't smaller, the image is already well compressed, and the tool keeps your original instead.

Frequently asked questions

How can I reduce the size of a photo to under 100 KB?

Set the max width to about 1000 pixels and the quality to 60%. Most phone photos then come out between 60 and 120 KB. If it is still too large, lower the quality or the width a little more.

Does compressing an image reduce its quality?

JPG and WebP compression removes some detail, but at 70–80% quality the difference is very hard to see on a screen. Below about 50%, you may notice blur and blocky areas.

Are my images uploaded to a server?

No. The compressor runs entirely in your browser. Your images are processed on your device and never leave it.

Why is my compressed PNG not smaller?

PNG is a lossless format, so re-saving it as PNG barely changes the size. Keep the output on Auto (or choose WebP or JPG) to make it much smaller.

Can I compress many images at once?

Yes. Drop as many images as you like. Each one is compressed with the same settings, and you can download them one by one or all together.

Last updated October 2026 · More image tools