Compress Images Online Free | MyToolbox

Compress images up to 80% smaller without losing quality. Free, no signup, works in your browser. Drag, drop, download.

Drop an image or click to upload

Supports JPG, PNG, WebP — processed 100% in your browser

How to Use Image Compressor

1

Upload your images

Drag and drop your images or click to browse. Supports JPEG, PNG, and WebP formats. Batch upload is supported.
2

Adjust compression

Use the quality slider to balance file size and image quality. See the estimated savings in real time.
3

Download compressed files

Click download to save your optimized images. Each file shows the original and compressed size so you know exactly how much you saved.

Why Use Our Image Compressor

Up to 80% File Size Reduction

Advanced compression algorithms significantly reduce file sizes while preserving visual quality. Most users see 60-80% reduction on photographs.

100% Browser-Based

All compression happens in your browser. Your images are never uploaded to any server, giving you complete privacy and instant results.

Batch Processing

Compress multiple images at once. Upload an entire folder of images and download them all in one go — no per-file waiting.

Adjustable Quality

Fine-tune the compression level with a quality slider. Preview results before downloading to make sure the output meets your standards.

Supports JPEG, PNG, WebP

Works with the most common web image formats. Each format uses optimized compression algorithms suited to its characteristics.

Frequently Asked Questions

Is the image compressor free?

Yes, completely free with no limits on the number or size of images. No account or signup needed.

Are my images uploaded to a server?

No. All compression happens directly in your browser using client-side JavaScript. Your images never leave your device.

What image formats are supported?

JPEG, PNG, and WebP. Each format uses algorithms optimized for its specific characteristics — lossy compression for JPEG and WebP, lossless or lossy for PNG.

Can I compress images for my website?

Absolutely. This tool is ideal for optimizing images before uploading to a website, blog, or CMS. Smaller images mean faster page loads and better SEO.

How does this compare to TinyPNG or Squoosh?

Like Squoosh, MyToolbox processes images entirely in your browser — nothing is uploaded. Unlike TinyPNG, there are no daily limits and no account required.

Does compression reduce image resolution?

No. Compression reduces file size by optimizing how pixel data is stored, not by shrinking dimensions. Your images keep their original resolution.

Does this work on mobile?

Yes. The tool works in any modern browser on iOS, Android, tablets, and desktop computers.

Is there a file size limit?

There is no hard limit, but very large files (over 50 MB) may be slow to process depending on your device. For best performance, process images under 20 MB each.