Image Compressor

Reduce image file sizes while maintaining visual quality. Perfect for web optimization.

Drop your image here

or click to browse (JPG, PNG, WebP)

How to Compress Images

Add your image (JPG, PNG, or WebP)
Adjust the quality slider to balance size vs quality
Choose output format (JPEG offers best compression)
Download your compressed image

Why Compress Images?

Compressed images load faster on websites, take less storage space, and are easier to share via email or messaging. Our tool reduces file size while maintaining visual quality.

Format Comparison

JPEG: Best for photos, great compression, slight quality loss. WebP: Modern format with excellent compression, supported by most browsers. PNG: Lossless but larger files, best for graphics with transparency.

Picking the Right Quality Level

Compression quality has a sweet spot. Between 100 and about 85, file size drops fast while the image looks identical at normal viewing sizes. Below roughly 70, artifacts start creeping into gradients and fine detail - blotchy skies, fuzzy text edges. For photos going on the web, 80 to 85 is the reliable choice; for images people will zoom into, stay higher. The best habit is simple: compress, open the result, and look at it at full size before using it.

What the Quality Slider Does to File Size

Here is the curve in practice, using a 4.2 MB photo from a recent phone as the example:

Original

4.2 MB

Quality 90

1.6 MB

Quality 80

950 KB

Quality 70

700 KB

Quality 50

450 KB

Notice the shape: the drop from original to quality 90 is enormous, while going from 70 down to 50 saves comparatively little and costs visible quality. That asymmetry is why staying at 80 or above is almost always the right call. Exact numbers vary with image content; busy detail compresses worse than smooth areas.

Common Upload Limits to Aim For

Destination	Typical limit	Suggested approach
Email attachments	20 to 25 MB total	Compress each photo to about 1 MB
Job and visa application portals	Often 1 or 2 MB per file	Use the target size field directly
Forum avatars and listings	Frequently 200 to 500 KB	Resize first, then target the exact KB cap
Website images	No hard cap, speed suffers	Keep hero images under 300 KB, thumbnails far less

When a form gives you a hard number, skip the guesswork: put that number in the target size field and let the tool find the quality that fits.

A Privacy Bonus: Metadata Removal

Because this compressor redraws your image on a canvas and re-encodes it, the output contains just pixels - the original's EXIF metadata (GPS location, camera model, capture time) doesn't carry over. If you're compressing photos to post publicly, that's a quiet privacy win: the location data your phone embedded in the original never leaves with the compressed copy.

Frequently Asked Questions

Should I resize or compress first? Resize first. If an image will be displayed at 800 pixels wide, shrinking it to that size removes far more bytes than any quality slider can, and then compression works on the pixels that actually remain. The two together routinely cut files by 90 percent or more.

How do I compress to a specific size like 200 KB? Enter the size in the target field and the tool finds the highest quality that fits under it, setting the slider for you. Handy for upload forms and email limits with a hard cap. Works with JPEG and WebP; PNG has no quality dial to search.

How much smaller will my photo get? A typical photo lands 50 to 80 percent smaller at a quality setting of 70 to 80, with no difference you would notice at normal viewing size. Screenshots and graphics compress less predictably; for those, WebP output usually wins.

Does compressing again and again keep shrinking the file? No, and it slowly degrades quality each round. Lossy compression applied repeatedly compounds artifacts. Keep your original, compress once at the level you need, and re-export from the original if you need a different size later.

Is quality actually lost, or does it just look the same? It is genuinely lost: JPEG and WebP discard image data the eye is least sensitive to, which is why the file shrinks. At quality 80 and above the discarded detail is imperceptible in normal use. PNG output is the exception, staying pixel-identical but larger.

Is anything about my image sent to your server? No. The canvas re-encoding runs inside the page on your device, so neither the image nor its metadata is transmitted. The compression works offline once the page has loaded, which is the simplest proof there is no upload step.