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Image Compressor

Shrink JPG, PNG, and WebP images by 50–80% with barely any visible difference. Our free image compressor runs entirely in your browser — choose a file, drag the quality slider, and download the smaller version instantly. No uploads, no waiting in queues, no watermarks.

  • Free, no signup
  • Runs in your browser
  • Works on mobile

How to use the Image Compressor

  1. Drop an image onto the box, or click it to choose a JPG, PNG, WebP, GIF or BMP file.
  2. Pick the output format. JPG and WebP shrink photos the most; PNGs are converted to WebP because PNG has no quality setting.
  3. Optionally set a max width. Resizing a 4000-pixel phone photo to 1920 pixels often saves more than quality alone.
  4. Drag the quality slider and compare the before and after previews. The result updates automatically.
  5. Click Download compressed image.

About this tool

Compression happens entirely in your browser using the canvas API, so your photos are never uploaded. Lossy formats (JPG and WebP) give the biggest savings; around 70–80% quality is usually indistinguishable from the original on screen. If the result would be larger than your original, the tool tells you instead of handing you a bigger file.

Why use itHeavy images are the number-one cause of slow websites, and slow sites rank lower on Google while earning less from ads — visitors bounce before the page even loads. Compressing to quality 75–80 typically cuts file size dramatically while looking identical on screen. Because compression happens on your device, even private or client photos never touch a server, and there are no file-count limits.

Frequently asked questions

Does compression reduce image quality?

Lossy compression removes detail your eye rarely notices. At 70–80% quality most photos look identical on screen while shrinking 40–80%. Compare the before and after previews, and raise the quality if you see blockiness.

How much smaller will my image get?

Typically 50–80% smaller at quality 75, with barely noticeable difference — ideal for websites, blogs, and online stores where every kilobyte counts.

Which formats are supported?

JPG, PNG, and WebP for input. PNG output stays PNG; JPG and WebP are compressed with your chosen quality setting.

Will compression make my image blurry?

At quality 70–85, the difference is virtually invisible on screens. Only very low settings (below 40) show obvious artifacts, so stay in the 75–85 sweet spot for web use.