Formats and important notes
Input and output: JPG, PNG, or WebP. Enter one dimension to preserve the aspect ratio; entering both forces the exact size. The quality setting mainly affects JPG and WebP.
FREE BROWSER TOOL
Optimize images in your browser
Prepare images for websites, email, or documents without sending them to a server. Change the format, quality, and pixel dimensions in one step.
No sign-upNo file uploadsNo watermarks
How it works
- Choose an image.
- Set the output format, quality, and optional width or height.
- Save the optimized image.
Your file stays on your device
Processing happens directly in your browser. Toolavio receives neither the contents nor a copy of your selected files.
Frequently asked questions
How do I keep the aspect ratio?
Enter only a width or only a height; Toolavio calculates the other value.
Which format gives the smallest file?
WebP is often efficient, but the result depends on the image and quality setting.