Convert between PNG, JPEG and WebP — or just compress what you have. Everything runs locally in your browser: your images are never uploaded anywhere.
Most online converters upload your photos to a third-party server. This tool does the opposite: conversion and compression happen on your own device using the canvas API, so private screenshots, client work or personal photos never cross your network. It also means no queueing — even large batches convert instantly.
Are my images uploaded? No. All processing is local; the page works even offline once loaded.
Which format should I pick? WebP gives ~30% smaller files than JPEG at equal quality and is supported by all modern browsers. Use PNG only when you need transparency or lossless output.