Image Compressor & Converter

This free image compressor lets you compress image online in seconds and shrink bulky photos before you upload them anywhere. Large images slow down websites, eat into email limits, and waste storage. With a single quality slider you can reduce image size dramatically while keeping pictures sharp, then download the smaller file instantly. Everything happens in your browser, so there is no upload, no queue, and no signup.

It is also a full image converter. Switch any picture between PNG, JPG, and WebP with one click. Need to turn a screenshot into a photo format? Convert PNG to JPG to cut the size. Building a fast website? Convert JPG to WebP, a modern format that is usually 25 to 35 percent smaller than JPEG at the same quality. You can also compress JPEG files that are already small, or move transparent graphics to WebP without losing the alpha channel.

Want to resize an image online too? Set a maximum width and the tool downscales wide photos while preserving the aspect ratio, so nothing looks stretched. Resizing is often the single biggest way to reduce image size, because cutting a 4000-pixel photo down to 1200 pixels can shrink the file by 90 percent with no visible difference on screen. Combine resizing with the quality slider to hit an exact target size.

Because this is a client-side tool, your photos never leave your device. Each file is drawn onto an HTML canvas and re-encoded with the format and quality you choose, which is the same technique professional tools use. Drop in a whole batch, tweak the settings once, and every image updates at the same time. When you are happy, download them individually or all together.

Looking to clean up your files further? Try our Image Metadata Remover to strip EXIF and GPS data before sharing, or browse more AI image tools to generate and edit visuals.