Image Compressor

How to Use

Select an image, then adjust the compression quality. Around 60–80% is the sweet spot for most photos — big savings with little visible change. Click Compress and you'll see the original size, the compressed size, and the percentage saved, with a download button for the result.

Why This Tool Is Useful

Large images are the number-one cause of slow web pages, and page speed affects both user experience and search rankings. Compressing images before uploading them to a site, emailing them, or attaching them to a form keeps everything fast and within size limits. Doing it locally means even sensitive images stay private.

How Image Compression Works

Lossy compression (used by JPG and WebP) removes detail the human eye is unlikely to notice — mostly subtle colour and high-frequency information. The quality setting controls how aggressively it does this. Because photos contain lots of gradual variation, they compress extremely well; flat graphics and text-heavy screenshots don't compress as cleanly and can show artifacts.

Choosing a Quality Level

There's no universally correct setting, but there is a practical sweet spot. The table below shows what to expect at different levels — start at 70–80% and only go lower if you need extreme savings.

Why Compress Images at All

Smaller images pay off in several ways:

• Faster page loads — images are usually the heaviest part of a web page.
• Better SEO — page speed is a ranking factor and affects Core Web Vitals.
• Lower bandwidth costs and happier mobile users.
• Fits within upload limits on forms, email, and marketplaces.

Compression Tips

A few habits get better results:

• Resize before compressing — an image displayed at 800px doesn't need to be 4000px wide.
• Compress photos harder than graphics; flat colour shows artifacts sooner.
• Always eyeball the result before publishing.
• For the web, consider WebP — it compresses better than JPG at the same quality.

What to Expect at Each Quality Level