Free Image Compressor – Reduce JPG, PNG, WebP File Size Online

Compress Images Online for Free

Need to reduce image file size? Our free online image compressor shrinks your JPG, PNG, and WebP files by up to 90% — without noticeable quality loss. Everything runs in your browser, so your images are never uploaded to any server.

Batch Image Compression

Drop multiple images at once and compress them all in a single batch. Our bulk image compressor processes each file individually, showing you the original and compressed sizes side by side. Download all compressed images as a single ZIP file or save them individually.

Multiple Output Formats

Choose between JPG, WebP, or PNG output. JPG is ideal for photographs with high compression ratios. WebP offers even better compression for web use with modern browser support. PNG is perfect for images that need lossless compression, like screenshots and graphics with sharp edges.

Adjustable Quality and Resizing

Fine-tune the compression with our quality slider (10% to 100%). Lower values produce smaller files with some quality trade-off, while higher values preserve more detail. You can also set a maximum width to automatically resize images — perfect for optimizing images for websites, email attachments, or social media.

100% Private Image Compression

Unlike other online image compressors that upload your files to remote servers, our tool processes everything locally in your browser. Your photos, screenshots, and graphics never leave your device. This makes it the safest way to compress images online when working with sensitive or personal content.

Optimize Images for the Web

Large image files slow down websites, increase bandwidth costs, and hurt SEO rankings. Our image optimizer helps you reduce file sizes to improve page load times, Core Web Vitals scores, and user experience. WebP output can reduce image sizes by 25-35% compared to JPG with equivalent quality.

Perfect for Any Use Case

Use our image compressor to optimize photos for websites, reduce email attachment sizes, prepare images for social media, compress screenshots for documentation, or shrink images before uploading to cloud storage. Works with any image from any device — cameras, phones, scanners, or design tools.

How to Compress Images

Upload Images

Drag and drop images or click to browse. Add as many as you want — PNG, JPG, WebP, BMP, or GIF.

Adjust Settings

Choose output format (JPG, WebP, or PNG), set quality level, and optionally resize with max width.

Download

Click "Compress" then download as ZIP or individually. See exact file size savings for each image.

Frequently Asked Questions

How much can I reduce image file size?

It depends on the original image and your quality settings. JPG compression at 80% quality typically reduces file size by 50-70%. WebP can achieve 25-35% better compression than JPG at equivalent quality. PNG compression is lossless, so savings are smaller (10-30%) but quality is preserved perfectly.

Will the image quality be noticeably worse?

At quality settings above 70%, the difference is barely visible to the human eye. At 50-70%, you may notice slight artifacts in detailed areas. Below 50%, quality loss becomes more apparent. We recommend starting at 80% and adjusting based on your needs.

Is my image uploaded to a server?

No. Everything runs 100% in your browser. Your images never leave your device. This makes our tool the most private option for compressing images online.

What image formats are supported?

You can upload PNG, JPG/JPEG, WebP, BMP, and GIF files. Output is available in JPG, WebP, or PNG format. You can convert between formats — for example, upload a PNG and export as a compressed JPG.

Can I compress multiple images at once?

Yes. Drag and drop as many images as you want. They will all be compressed in a batch. You can download them all as a single ZIP file or save each one individually.

Can I resize images while compressing?

Yes. Set a maximum width in pixels (e.g., 1920 for Full HD, 1280 for HD). Images wider than this will be automatically resized proportionally. This is great for optimizing images for web use where full resolution isn't needed.

Which format should I choose?

Use JPG for photographs and complex images — it offers the best compression. Use WebP for web use if your audience uses modern browsers — it compresses better than JPG. Use PNG for screenshots, graphics, or images with text — it preserves sharp edges perfectly with lossless compression.

Is there a file size limit?

Since processing happens in your browser, there is no fixed server-side limit. However, very large images (over 50 MB each) or large batches may be limited by your device's available memory.

Do I need to install any software?

No. Everything runs in your browser. There is nothing to download or install. It works on Chrome, Safari, Firefox, and Edge on Windows, Mac, Linux, iOS, and Android.

Is this tool really free?

Yes, completely free. There are no watermarks, no file size limits, no image count limits, and no account required. All processing happens locally in your browser.