Are my images uploaded?

No. Compression runs entirely in your browser with canvas — your image never leaves your device.

Which format compresses best?

WebP usually gives the smallest files; JPG is great for photos and universally supported. PNG stays lossless (good for graphics).

JPG/WebP are lossy, so very low quality shows artefacts. Around 60–75% is a good balance of size and quality.

The converter focuses on changing format; this tool is tuned for reducing file size with a quality slider and before/after comparison.

Compress JPG, PNG and WebP images to a smaller file size in your browser — adjust quality and see the savings. No uploads, no watermark.

Processed 100% in your browser — nothing you enter here is ever uploaded.

Shrink photos to get under form, email or portal size caps.

Compress images so pages load quicker and rank better.

Smaller images take less space and use less mobile data.

Drop an image in, or click to browse. It's compressed in your browser — nothing is uploaded.

Pick the output format (JPG or WebP compress best; PNG is lossless).

Drag the quality slider — lower quality means a smaller file. 60–75% usually looks great.

Click Compress, check the size saved, and download.