Image Compress

Reduce image file size while preserving quality. All processing happens in your browser.

No watermarkFree & unlimited

Mode

Drop an image here or browse your files

PNG · JPEG · WebP · HEIC · BMP · GIF — max 50 MB

All processing happens in your browser. No data is sent to any server.

Key facts about Image Compress

Key facts about Image Compress
Two modes	quality-first here (you set the slider, the size follows) and target-first on the compress-to-100KB/50KB/20KB pages (you set the size, the settings follow)
Target mode mechanism	a 10-step binary search over encoder quality at each of 13 resolution rungs, with the achieved byte count measured from the finished blob
When to use target mode	any upload form with a hard byte ceiling — this page cannot promise a size, because quality and size are not the same control
Engine here	browser-image-compression with a web worker, iterating toward a size derived from your quality setting
Formats	JPEG, WebP and PNG output on this page; target mode offers JPEG and WebP only, because PNG is lossless and has no quality parameter to search
Batch	20 files per run in both modes

1
Upload your image
Supports PNG, JPG, WEBP, and other common formats.
2
Adjust quality
Use the quality slider to find the sweet spot between file size and visual quality.
3
Preview the result
Compare original and compressed versions side by side.
4
Download
Save the optimized image with reduced file size.

For photos, 75-85% quality is usually visually identical to 100% but 3-5× smaller.
PNG files compress best when they have large areas of solid color.
WebP format offers the best compression ratio for web use.
Always check the preview - sometimes a slightly higher quality saves significant visual artifacts.

Updated September 16, 2026