Free Image Compressor — Reduce JPG, PNG & WebP File Size

Shrink image file sizes with an adjustable quality slider and see exactly how much you save. Processed entirely in your browser — no upload, no signup.

Runs in your browser — your files are never uploaded.

Your result will appear here.

How Image Compression Works

Lossy formats such as JPG and WebP shrink files by discarding detail the eye barely notices. The quality slider controls that trade-off: 70–80% usually cuts file size by more than half with little visible change. PNG is lossless, so its quality setting has no effect — switch to WebP or JPG for the biggest savings.

Smaller images load faster, improve Core Web Vitals and save bandwidth. This tool re-encodes your picture using your browser's built-in encoder, so nothing is uploaded.

Frequently Asked Questions

Start at 75. Go lower for thumbnails and higher for photos you plan to print.

PNG is lossless. Choose JPG or WebP as the output format to reduce size.

No fixed limit, but very large photos depend on your device memory.

No. Compression runs in your browser only.

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