The Lab · Tool

Image Converter

Re-encode and resize PNG, JPEG, and WebP — right in this tab. Shrink file size, switch formats, or cap the dimensions. The image never leaves your browser: no upload, no account, no watermark.

✓Runs in your browser
✓Nothing uploaded
✓No watermark
✓Open source

Image in

Drop an image here

or click to choose · PNG, JPEG, WebP, GIF

Format

Quality 80

Resize

Image out

Drop an image to convert and compress it.

Conversion runs on the browser’s built-in canvas encoder — your image is decoded, optionally downscaled, and re-encoded entirely on your machine. PNG is lossless (the quality slider is ignored); JPEG and WebP are lossy, so lower quality means smaller files. Transparent areas become white when you export to JPEG, which has no alpha channel.