Image Compressor
Free image compressor that runs entirely in your browser. Drag in a JPG, PNG or WebP, choose the quality and size, and download the compressed file instantly.
About the Image Compressor
Drop in a JPG, PNG or WebP and this compressor shrinks it right inside your browser — your photo is never uploaded to any server. Choose the quality level, optionally cap the width (perfect for resizing 4000px camera photos down to web size), and pick JPEG or WebP output. The live preview and saved-percentage readout let you find the sweet spot between file size and visual quality before downloading.
Why compress images?
Images are usually the heaviest part of any web page, and page weight directly affects load speed, SEO rankings and mobile data bills. A typical phone photo can shrink 80–90% with no visible difference at web sizes. For photos, JPEG at 70–80 quality or WebP is usually ideal; screenshots and flat graphics tolerate lower quality surprisingly well.
How it works
The tool uses the browser's built-in canvas and image encoders — the same engine your browser uses to render pages. That is why it is instant, offline-capable and completely private: there is no upload queue, no file size limit imposed by a server, and no copy of your image anywhere but on your device.
Frequently asked questions
Is my image uploaded anywhere?
No. Compression happens locally using the HTML5 canvas API. The file never leaves your device — you can even use this tool with your internet connection switched off after the page loads.
What quality setting should I choose?
For web photos, 70–80% JPEG quality is usually indistinguishable from the original at screen size while cutting the file dramatically. 60% still looks good for thumbnails. Watch the live preview and drop the slider until you just barely notice a difference.
Should I choose JPEG or WebP?
WebP typically produces 25–35% smaller files than JPEG at the same visual quality and is now supported by every modern browser. Choose JPEG when you need maximum compatibility with older software.
Why is there no PNG output option?
PNG is a lossless format — re-encoding a photo as PNG usually makes it bigger, not smaller. For graphics with few colors, keep your PNG; for photos, JPEG or WebP will always win.