Is this image compressor really free?

Yes, completely free! No signup, no watermarks, no limits. All processing happens in your browser so your images never leave your device.

What image formats are supported?

The compressor supports JPEG, PNG, and WebP formats. You can also convert between these formats during compression.

Are my images uploaded to a server?

No! All image processing happens entirely in your web browser using HTML5 Canvas technology. Your images never leave your device, ensuring complete privacy.

Can I compress multiple images at once?

Yes! You can upload and compress multiple images in batch mode. Each image can be individually adjusted or you can apply the same settings to all.

What is the best quality setting for web images?

For most web use, a quality setting between 70-85% offers a great balance between file size and visual quality. The comparison view helps you find the sweet spot for each image.

Free Online Image Compressor & Optimizer (No Signup)

Free Online Image Compressor & Optimizer (No Signup) – FreeWWW

Drop images here or click to browse

Supports JPEG, PNG, and WebP — multiple files OK

Quality 80%

Output Format

Max Width (px) — 0 = no limit

Images

0 KB

Original Total

0 KB

Compressed Total

Space Saved

File Size Comparison (Original vs Compressed)

How to Use

Upload — Drag & drop or click to select JPEG, PNG, or WebP images. Batch uploads supported.

Adjust — Set quality (1–100%), choose output format, and optionally resize images.

Compare — Click "Compare" on any image to see a side-by-side before/after view with stats.

Download — Save individual images or download all at once. Settings persist for next time.

Before / After Comparison

How to Use