Image Compressor — Compress JPG, PNG, WebP Free

Image Compressor reduces JPG, PNG, WebP, and similar image sizes before upload, email, or website use. It gives direct control over quality and dimensions instead of applying a one-size-fits-all setting.

What happens in the browser

The browser decodes each image, optionally resizes dimensions, and re-encodes it with a smaller quality or format setting. Photo files usually shrink the most; graphics with flat colors may need format-specific choices to avoid artifacts.

Step-by-step workflow

1. Add one or more image files.
2. Choose quality, maximum dimensions, or format options.
3. Preview the size reduction and visual result.
4. Compress locally in the browser.
5. Download the optimized images and compare important details before replacing originals.

When this tool is useful

• Reducing photos before adding them to PDFs.
• Preparing website images where page speed matters.
• Making email attachments smaller.
• Shrinking screenshots and product images for forms or dashboards.

Limitations to know before downloading

• Strong JPG compression can create visible blocks around text and edges.
• PNG screenshots with text may look worse if converted carelessly to JPG.
• Compression cannot restore detail lost in an already low-quality image.

Privacy and file handling

Image pixels are processed in the browser canvas on your device. The images are not sent to a server for optimization.