JPG/PNG to WebP Converter – Free, No Limits

WebP is an image format created by Google that allows reducing image file sizes by up to 25–35% compared to JPG and PNG - while maintaining comparable visual quality. Smaller files mean faster page loading, which translates to better user experience and higher scores in PageSpeed Insights.

The WebP format is supported by all modern browsers: Chrome, Firefox, Safari (from version 14), and Edge. If you run a website, online store, or blog, converting images to WebP is one of the simplest ways to improve site performance.

The converter supports both JPG photos and PNG graphics (including those with transparency). You can convert any number of files at once - all are processed locally in the browser, without being sent to a server.

The tool offers two ways to add files:

• Drag and drop - grab files from a folder on your computer and drop them onto the area labeled "Drag and drop images here". You can drag multiple files at once.
• Select from device - clicking the file upload area opens a selection dialog. Holding Ctrl (or Cmd on Mac) lets you select multiple files at once.

The tool only accepts JPG and PNG files. If you accidentally add a file in another format (e.g., GIF or BMP), it will be automatically skipped and you will see an informational message.

Privacy: All files are processed locally in the browser. They are not sent anywhere - they do not go to any server. After closing the tab or browser, files are removed from memory.

Each file in the queue has one of four statuses that indicate conversion progress:

Smart Quality is an automatic optimization mechanism that ensures the output WebP file is never larger than the original. It works as follows:

1. The tool converts the image at your set quality (e.g., 80%).
2. It checks whether the resulting file is smaller than the original.
3. If it is larger, it automatically lowers quality and tries again.
4. The process repeats until the output file is smaller or quality drops below a safe minimum.

The tool automatically selects optimal settings. If you have an image that is already heavily compressed (e.g., a JPG at 60% quality), the parameters will be automatically adjusted to still achieve size savings.

Next to each file you will see "WebP quality used" - this is the actual quality applied after any Smart Quality adjustment.

Below the conversion buttons you will find a summary with savings information:

• Total input size - sum of all original file sizes.
• Total size after conversion - sum of all WebP file sizes.
• Saved - how much space you gained through conversion (in KB/MB and percentage).

Copy summary: The button copies the report to clipboard in text format. You can paste it into notes, emails, or documents - useful for documenting image optimization.

Savings depend on the type of image and its original compression. Below are example results for typical files:

Actual savings may vary. The converter shows the exact size before and after conversion for each file, as well as a summary of total savings.