# Convert WebP to Lossy WebP

Convert WebP images to lossy WebP format with controlled quality reduction

> Canonical page: https://elysiatools.com/en/tools/webp-to-webp-lossy

- **Category:** Media

- **Keywords:** webp, lossy, convert, image, format, quality, compression, optimize

## Overview

Optimize your WebP images by converting them to lossy WebP format, allowing you to significantly reduce file sizes while maintaining visual quality through precise control over compression settings.

## Inputs

- **WebP Image File** (file): Select WebP image to convert to lossy
- **Image Quality (0-100)** (range): Lower = smaller file size, lower quality
- **Compression Effort (0-6)** (number): Higher = better compression but slower
- **Compression Method (0-6)** (number): Higher = better compression but slower
- **Alpha Quality (0-100)** (range): Set quality for alpha/transparency channel when present
- **Smart Subsample** (checkbox): Use smart subsampling for potentially better quality with chroma channels

## When to use

- When you need to reduce the file size of high-resolution WebP images for faster web page loading.
- When you want to optimize images for mobile devices without sacrificing significant visual fidelity.
- When you need to fine-tune compression parameters like effort and method to balance image quality and processing speed.

## How it works

- Upload your source WebP image file to the tool.
- Adjust the quality, compression effort, and method sliders to define your target balance between file size and visual output.
- Enable optional features like smart subsampling or alpha channel quality adjustments if your image contains transparency.
- Process the file and download your optimized lossy WebP image.

## Use cases

- Optimizing hero images and banners for e-commerce websites to improve Core Web Vitals.
- Compressing large batches of user-uploaded profile pictures to save server storage and bandwidth.
- Preparing image assets for high-traffic blogs where page load speed is critical for SEO.

## Frequently asked questions

### What is the difference between lossless and lossy WebP?

Lossless WebP preserves every pixel of the original image, while lossy WebP uses predictive coding to reduce file size by discarding imperceptible data.

### How does the quality slider affect the file?

Lowering the quality value (0-100) increases compression, resulting in smaller file sizes but potentially introducing visual artifacts.

### What do the compression effort and method settings do?

Higher values for effort and method increase the time spent searching for the best compression strategy, resulting in smaller files at the cost of longer processing time.

### Can I convert images with transparency?

Yes, you can use the Alpha Quality setting to control the compression level of the transparency channel independently.

### What is Smart Subsampling?

Smart Subsampling optimizes the chroma channels of the image, which can improve visual quality in specific areas when using lossy compression.

## Related tools

- [Convert AVIF to WebP](https://elysiatools.com/en/tools/avif-to-webp): Convert AVIF images to WebP format with advanced compression options and web optimization
- [Convert GIF to Animated WebP](https://elysiatools.com/en/tools/gif-to-animated-webp): Convert animated GIF images to animated WebP format with better compression and modern web support
- [Convert ICO to WebP](https://elysiatools.com/en/tools/ico-to-webp): Convert ICO icon files to WebP format with modern compression and transparency support
- [Convert JPEG to WebP](https://elysiatools.com/en/tools/jpg-to-webp): Convert JPEG images to WebP format with modern compression and better quality-to-size ratio
- [PNG to WebP Converter](https://elysiatools.com/en/tools/png-to-webp): Convert PNG images to WebP format for better compression and web performance
- [Convert SVG to WebP](https://elysiatools.com/en/tools/svg-to-webp): Convert SVG vector graphics to WebP raster format with modern compression and transparency support
- [Convert TIFF to WebP](https://elysiatools.com/en/tools/tiff-to-webp): Convert TIFF images to WebP format with quality control and transparency support
- [Convert WebP to AVIF](https://elysiatools.com/en/tools/webp-to-avif): Convert WebP images to AVIF format with advanced compression and high efficiency

## Samples

- [WebP Samples](https://elysiatools.com/en/samples/webp-samples): Sample WebP images in different aspect ratios and resolutions
- [WebP Viewer Samples](https://elysiatools.com/en/samples/webp-viewer-samples): Sample WebP image for the in-browser WebP Viewer
- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion