Image Compressor
Reduce PNG, JPEG, WebP & AVIF file sizes up to 90% without losing quality.
Step 1: Drop images here or click to browse
Supports PNG, JPG, WebP, AVIF, GIF, and SVG files
Visual Comparison
Drag slider or toggle view modes to inspect visual qualityHow to Use Image Compressor
Upload Images
Drag and drop single or multiple PNG, JPG, WebP, or AVIF files into the upload box.
Set Target or Quality
Choose Quality Percentage slider or specify an Exact Target Max Size in KB (e.g. 100 KB).
Compare & Download
Inspect before/after image quality with the visual compare slider and download your compressed files.
Key Capabilities & Features
Frequently Asked Questions
Everything you need to know about browser-based image processing.
Are my images uploaded to any server when I compress them?
No! Compy Image processes all images 100% locally inside your web browser using HTML5 Canvas and Web API technology. Your photos never leave your device.
What image formats can I compress?
You can compress PNG, JPEG/JPG, WebP, AVIF, GIF, and SVG files. You can also convert output files to WebP, JPEG, or PNG format for maximum web compatibility.
How much file size reduction can I expect?
Typically, users achieve between 50% to 90% file size reduction depending on the original format and selected target quality or target KB size, with virtually unnoticeable visual loss.
How does the "Exact KB Size Target" option work?
Our intelligent compression engine uses a binary search algorithm combined with adaptive resolution scaling to optimize your image so it fits under your specified max file size limit (e.g. 100 KB or 200 KB).
Will image compression improve my website SEO and loading speed?
Yes, significantly! Smaller image file sizes reduce Core Web Vitals LCP (Largest Contentful Paint) times, leading to faster page load speeds and better search engine rankings.
Is there any daily compression limit or file size cap?
No limits! Because processing runs entirely on your own device hardware, you can compress unlimited images of any size completely free.
Explore More Client-Side Tools
Image Converter
Convert PNG, JPG, WebP, AVIF & BMP images into any format instantly.
Image Resizer
Resize image dimensions in pixels or percentage with aspect ratio lock.
Image Cropper
Crop images easily with interactive aspect ratios and custom boundaries.
EXIF Metadata Stripper
Remove hidden GPS location, camera model, and private metadata from photos.