Reduce file size while keeping visual quality. Supports JPEG, PNG, and WebP. 100% client-side — your images never leave your browser.
Drag & drop an image here, or browse
JPEG, PNG, WebP — Max 20MB
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About Image Compressor - Compress Images Online Free
A free online image compressor that reduces JPEG, PNG, and WebP file sizes without visible quality loss. All compression happens in your browser — your images are never uploaded to any server.
Key Features
Client-Side Compression — Your images never leave your browser
Quality Slider — Fine-tune the balance between file size and visual quality
Multiple Formats — Export as JPEG, WebP, or PNG
Before/After Preview — See original and compressed images side by side
Size Comparison — Instant feedback on file size savings
Drag & Drop — Easy file upload with drag and drop support
How to Use
Drag and drop an image or click browse to select a file.
Website Optimization:Compress images before uploading to your website for faster page loads and better SEO.
Email Attachments:Reduce image sizes to stay under email attachment limits and send faster.
Social Media:Optimize images for faster uploads to social platforms without visible quality loss.
Storage Savings:Compress photo libraries to free up disk space while keeping your memories intact.
Tips
Tip: WebP format typically achieves 25-35% smaller files than JPEG at the same quality level.
Tip: For photographs, JPEG quality of 75-85% usually provides the best balance of size and quality.
Alternatives
Squoosh — Google's image compression tool
TinyPNG — Popular PNG and JPEG compressor
ImageOptim — Desktop app for macOS
FAQ
Yes, completely safe. All compression happens in your browser using the Canvas API. Your images are never uploaded to any server, so they remain completely private.
This tool supports JPEG, PNG, and WebP input formats. You can output to any of these three formats, making it easy to convert between them while compressing.
Compression depends on the image content and quality setting. Typically, you can achieve 40-70% size reduction with JPEG at 75-85% quality with minimal visible difference. WebP often achieves even better compression.
JPEG is best for photographs and complex images. PNG supports transparency and is lossless. WebP is a modern format that offers better compression than both JPEG and PNG while maintaining similar quality.
Some compression is lossy for JPEG and WebP, meaning very minor quality reduction occurs. However, at quality settings of 75% or higher, the difference is typically imperceptible to the human eye. PNG compression is always lossless.