Image Compressor is a free, browser-based tool from XO3D Labs. Compress JPG, PNG and WebP in the browser with adjustable quality, live before and after preview and file-size savings. Nothing leaves your machine. It is built for 3D artists, CGI generalists and technical artists, runs entirely in your browser with no signup or install, and is one of 70 free tools in the Labs suite.
What it does
Image Compressor shrinks the file size of JPG, PNG, WebP, GIF and BMP images using an adjustable quality setting, so you can trade a little visual detail for a much smaller file. It runs entirely in your browser using the HTML canvas, so your images are never uploaded to a server and nothing leaves your device. It is completely free, with no account, login or watermark.
How to use it
Drag and drop one or many images onto the drop zone, or click to browse. Set the quality slider, and optionally change the output format (keep the original, or convert to JPG, WebP or PNG), cap the width or height, and let the export automatically remove EXIF metadata when the file is re-encoded. A live before-and-after compare slider lets you check quality against the original, and the panel shows the exact file size saved. Use Compress All to batch every queued image, then download individually or all at once.
Things to know
PNG is lossless, so the quality slider has no effect when you export to PNG; for photographic images, JPG or WebP usually give far smaller files. Converting to WebP often beats JPG at the same quality. If shading looks different after a format change, that is the format, not lost pixels. Resizing down before compressing reduces file size further. The compare view decodes the actual compressed file, so the artefacts you see are the real ones.
Frequently asked questions
What does Image Compressor do?
Compress JPG, PNG and WebP in the browser with adjustable quality, live before and after preview and file-size savings. Nothing leaves your machine.
Are my images uploaded to a server?
No. Images are processed locally in your browser, so nothing is uploaded and your files never leave your device.
Is Image Compressor free to use?
Yes. Image Compressor is completely free, with no account, login, trial or paywall. It is one of 70 free tools published by XO3D Labs.
Do I need to install anything or sign up?
No. The tool runs entirely in your web browser on desktop and mobile - there is nothing to download, install or sign up for.
Who created this tool?
XO3D is a UK-based product CGI studio headquartered in Stevenage, working with brands across the UK and internationally. XO3D Labs is its free tool suite for the CGI and product-marketing community.