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WebP Converter

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Convert one image to WebP with adjustable quality, previews, and exact file sizes. Runs in your browser.

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Choose an image to encode a real WebP file in your browser. The tool verifies the source bytes, checks the decoded dimensions, and never falls back to the original format.

Convert one image to WebP, adjust quality, preview the result, and compare the exact output file size before downloading. The tool accepts PNG, JPEG, WebP, GIF, and browser-decodable SVG within the file and canvas limits.

See more about the WebP Converter

Animated inputs become a still image, SVGs are rasterized, and WebP can be larger at high quality, so the result shows the real size change.

Examples

Convert one photo to WebP

Input: photo.jpg, quality: High
Output: photo.webp with preview, dimensions, and exact file size

Download only after checking the real output.

Compare quality settings

Input: product.png
Output: Low, Medium, High, or Maximum WebP result after each conversion

Changing quality clears the old result so the preview matches the current setting.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

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Quick answers for WebP Converter

What quality levels can I choose when converting to WebP?
Four presets, Low (30%), Medium (50%), High (80%), and Maximum (100%), each shown with a short note about the size and quality tradeoff before you convert.
Does it always make the image smaller?
No. After converting, it shows the exact source and WebP byte sizes and says whether the WebP result is smaller, larger, or the same size.
How does the conversion actually happen?
The file bytes are checked first, then the decoded image is drawn to a canvas. Browsers that produce real WebP use the native encoder; if the native encoder returns PNG, another format, or null, the tool uses a local WebP encoder instead.