Canvas Image Compressor & Converter | AVIF, WebP, JPEG, PNG

1) Pick an image

PNG, JPEG, WebP, AVIF... whatever your browser can decode.

Active:image•--•0 B

No image loaded yet. Pick a file and the preview will show here.

Output format

Tip: AVIF and WebP often shrink best. If an option is disabled, your browser cannot encode it.

Resize (max side in px)

2048 is a nice default for web. Set higher to keep full resolution.

Quality (manual)

0.82Higher = bigger file, fewer artifacts

Auto optimize target (PSNR dB)

40 dB is very high fidelity; 35 dB is usually visually clean.

Output:--

Encode something to see the output preview.

Nerd note: PSNR is computed on a small downsample (fast), so it is a guide, not a courtroom verdict.