How do I compress an image online?

Drop your image files onto the tool above. Squish converts them to WebP — the most efficient format available — and you download the compressed results.

How much will my images be compressed?

WebP typically achieves 25–80% smaller file sizes than JPG or PNG at the same visual quality. Results vary by image content.

Will image quality be reduced after compression?

At quality 80 (the default), the difference is invisible to the human eye. You can also choose lossless mode for zero quality loss.

Can I compress multiple images at once?

Yes. Drop any number of images or a ZIP archive to batch compress them all in one go.

Is it free to compress images?

Yes. Squish is completely free with no file size limit, no watermark, and no account required.

Compress Image Online Free

Reduce image file size without visible quality loss. Convert to WebP for the best compression available. Nothing uploaded.

Drop images or folders here, or click to browse

JPG, PNG, BMP, TIFF, GIF, HEIC, AVIF, SVG · Max 4 MB per file

Free Online Image Compressor

Squish compresses images by converting them to WebP — the most efficient image format for web use. WebP delivers 25–80% smaller files compared to JPG and PNG at equivalent visual quality. No uploads, no account, no size limit.

Up to 80% Smaller

WebP compression beats JPG and PNG on every benchmark. Convert and drastically cut your image file sizes.

Batch Compress

Compress an entire folder of images at once. Drop a ZIP archive and Squish compresses all images inside it.

Control the Output

Adjust the quality slider to balance file size and visual quality. Choose lossless for pixel-perfect compression.

Frequently Asked Questions

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