How do I compress an image?

Drop or select your image, adjust the quality slider (lower = smaller file), then click Download to save the compressed image.

What formats does the compressor support?

The compressor outputs JPG or WebP, both of which support quality-based lossy compression. PNG is lossless and cannot be quality-compressed.

Is image compression done in the browser?

Yes, entirely. The Canvas API handles the compression locally — no image data is sent to any server.

Image Compressor

Compress images by adjusting quality in your browser. Supports JPG and WebP output. See before/after file size instantly. No upload — files stay on your device.

Drop an image here or click to browse

PNG · JPG · WebP · GIF · BMP

Related Tools

Image → Base64

Convert images to Base64 data URIs instantly. Supports PNG, JPG, GIF, WebP, SVG. Files never leave your browser.

Image Compare

Compare two images with a draggable before/after slider in your browser. No upload required.

Image Cropper

Crop any image in your browser by selecting a region with your mouse. Download as PNG — no upload required.

How to Use

Drop or click the upload area to open a PNG, JPG, or WebP image.
Select the output format — JPG for photos, WebP for best compression.
Drag the Quality slider: lower values produce smaller files with more visible compression.
Compare the Original vs. Compressed file size displayed below the preview.
Click Download when satisfied. Processing happens entirely in your browser.

Quality Guide

90–100% — Near-lossless; minimal compression, largest file
75–89% — Excellent for photography; good balance of quality and size
60–74% — Good for web images; noticeable compression only at 100% zoom
Below 60% — Heavy compression; suitable for thumbnails and previews

Why Compress Images?

Faster page load times and improved Core Web Vitals (LCP)
Reduced storage and bandwidth costs
Better SEO rankings — search engines favor fast-loading pages