compress

Compress WebP

Compress WebP images in the browser with quality controls and local export.

LocalNo uploadInstant download
1

Source

Select or drop an image file.

Your preview will appear here.

3

Output

Pick a file to start.

Guide

What this tool is for

WebP compression takes advantage of Google modern image format to achieve smaller file sizes than both JPG and PNG while maintaining comparable visual quality. WebP supports both lossy compression (for photographs) and lossless compression (for graphics and screenshots), as well as transparency and animation. This tool compresses existing WebP files with adjustable quality settings, helping website owners and developers further optimize their images for faster page loads and lower bandwidth costs. The live preview lets you compare the compressed output against the original before downloading.

This tool compresses WebP files with precise quality control, supporting both lossy and lossless modes. Use it when you have a WebP image that needs to be smaller for web delivery, email, or storage, and you want to control the compression level.

How to use this tool

A short browser-side flow that keeps the file on the current device.

  1. Upload your WebP image that needs compression.
  2. Choose lossy or lossless mode and adjust the quality slider for lossy compression.
  3. Preview the result and download the compressed WebP file.

Best use cases

Common jobs where this page saves a repetitive manual step.

  • Further optimizing WebP website images for maximum page speed
  • Reducing WebP file sizes for email and messaging app sharing
  • Compressing transparent WebP graphics for web use while preserving alpha channel

Output and format notes

Details that help you avoid format or quality mistakes before export.

  • WebP lossy files are typically 25-35 percent smaller than equivalent JPG
  • WebP supports transparency in both lossy and lossless compression modes
  • Quality 75-80 is a good starting point for WebP lossy photographs

WebP compression vs. format alternatives

Different conversion paths and optimization tools serve distinct needs depending on your target format, file size goals, and intended use case.

  • Use Compress JPG when maximum compatibility across all platforms is required
  • Use Image to WebP when converting from JPG or PNG to the WebP format initially
  • Use Compress PNG when working with lossless graphics that need exact pixel preservation

FAQ

Frequently asked questions

How does WebP compression compare to JPG compression?

WebP lossy compression typically produces files 25-35 percent smaller than equivalent-quality JPG files. WebP also supports lossless compression, which produces files about 26 percent smaller than PNG. WebP uses more advanced compression algorithms based on VP8 video encoding, which better preserves detail at lower bitrates. However, WebP is not universally supported by older software, so JPG remains the safer choice for maximum compatibility.

Can I compress a WebP file that was already compressed?

Yes, but with caveats. If the WebP was created from a high-quality source, additional compression can further reduce size. If the WebP was already heavily compressed, further compression will introduce visible artifacts with diminishing size gains. Always try to compress from the original source if available. WebP lossy compression, like JPG, is generational: each compression cycle discards additional data that cannot be recovered.

Does WebP compression preserve transparency?

Yes, WebP supports alpha channel transparency in both lossy and lossless modes, unlike JPG which has no transparency support. When compressing a transparent WebP, the transparency is preserved while the visible pixel data is compressed. This makes WebP an excellent choice for web graphics that need both small file sizes and transparent backgrounds, outperforming PNG in most cases.

What quality setting should I use for WebP images?

For web photographs, WebP quality 75-80 is often equivalent to JPG quality 80-85 in visual quality while producing smaller files. For graphics and screenshots, WebP lossless mode is recommended when quality must be exact. Test your specific images at different quality levels, as WebP compression behaves differently from JPG and the optimal setting varies by content type.

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