Convert Images to WebP

What Is WebP and Why Convert to It?

WebP is a modern image format developed by Google that supports both lossy and lossless compression, along with transparency and animation. For typical photos and UI graphics, WebP produces files 25–80% smaller than PNG or JPEG at equivalent perceived quality — speeding up page loads and reducing bandwidth costs.

All modern browsers now support WebP (Chrome, Firefox, Safari, Edge, Opera), covering over 97% of web users. Converting your existing PNG or JPG assets to WebP is one of the highest-impact, lowest-effort performance optimizations you can make for any website.

How to Convert Images to WebP

1. Upload your image — drag and drop PNG, JPG, or any supported format into the upload area.
2. Set quality — the slider defaults to 80%, which works well for most web images. Lower for smaller files, higher for sharper output.
3. Download WebP — the output format is set to WebP automatically. Save individually or batch download as ZIP.

WebP vs PNG vs JPG — When to Use Each

WebP is the best all-around choice for web images. It handles photos (like JPG) and transparency (like PNG) in a single format with smaller file sizes. Use PNG when you need maximum compatibility for pixel-perfect graphics. Use JPG for legacy systems that do not support WebP. For more detail on when each format wins, read PNG vs JPG vs WebP.

WebP for Core Web Vitals and SEO

Google PageSpeed Insights and Core Web Vitals reward lighter images because they improve Largest Contentful Paint (LCP) and reduce total page weight. Switching from PNG/JPG to WebP is consistently recommended by Lighthouse audits. This tool lets you convert locally — no server upload needed — so your original files stay private.

How WebP Compression Works

WebP is an open image format created by Google in 2010 as a successor to older web formats. It uses advanced compression algorithms derived from the VP8 video codec for lossy encoding and a separate predictive coding method for lossless encoding. The result is a single format that handles every use case traditional web images cover: photographs, illustrations, icons, screenshots, and even short animations.

Key capabilities that set WebP apart:

• Lossy compression — produces visually identical output to JPEG at 25–35% smaller file sizes, making it ideal for photographs and complex imagery.
• Lossless compression — delivers files 26% smaller than PNG on average, according to Google's own benchmarks, without losing a single pixel of data.
• Alpha transparency — supports 8-bit alpha channels in both lossy and lossless modes. Lossy WebP with transparency is something PNG and JPEG simply cannot match: transparent images that are dramatically smaller.
• Animation support — WebP can replace animated GIFs with files that are typically 60–90% smaller while supporting 24-bit color and alpha transparency (animated GIFs are limited to 256 colors).

For web developers and content creators, switching to WebP means faster page loads, lower hosting costs, better Core Web Vitals scores, and improved SEO rankings. Use this converter to transform your existing PNG and JPG assets in seconds — everything runs in your browser, so your files stay private.

WebP vs PNG vs JPG: File Size Comparison

The file size savings from converting to WebP vary by image type, but the reductions are consistently significant. Here are real-world examples across common use cases:

• Product photo (2 MB PNG) — converts to approximately 500 KB as lossy WebP at quality 80. That is a 75% reduction, turning a slow-loading hero image into a fast one.
• Blog header image (1 MB JPG) — converts to approximately 400 KB as WebP. Pages with multiple images see cumulative savings of several megabytes.
• UI screenshot with transparency (800 KB PNG) — converts to approximately 250 KB as lossless WebP, preserving every pixel while cutting file size by nearly 70%.
• Icon or logo (50 KB PNG) — converts to approximately 20–30 KB as WebP. Even small assets add up across a full website with dozens of images.

These savings translate directly into faster Largest Contentful Paint (LCP) scores. A page that loads 10 images totaling 5 MB in PNG/JPG format could serve the same visuals at under 2 MB in WebP — a difference users notice on mobile connections. For a deeper technical comparison of all three formats, see our guide on PNG vs JPG vs WebP.

Browser Support for WebP in 2026

Browser support for WebP is effectively universal. As of 2026, every major browser fully supports WebP decoding and display:

• Google Chrome — supported since version 17 (2012). Chrome was the first browser to add WebP support, reflecting Google's investment in the format.
• Mozilla Firefox — full support since version 65 (January 2019), including lossy, lossless, and animated WebP.
• Apple Safari — supported since Safari 14 (September 2020) on macOS and iOS, the last major holdout to add WebP support.
• Microsoft Edge — supported since the Chromium-based relaunch in 2020.
• Opera, Samsung Internet, and other Chromium-based browsers — full support.

The only browser that never supported WebP is Internet Explorer, which Microsoft officially retired in June 2022. With IE's global usage share now below 0.1%, there is no practical reason to avoid WebP for web projects. If you encounter the rare case where a legacy system requires PNG or JPG, use our WebP to PNG converter or PNG to JPG converter to create fallback versions.

Related Conversion Tools

• PNG to WebP Converter — specifically optimized for PNG to WebP conversion with transparency support.
• WebP to PNG Converter — convert back to PNG when you need broader format compatibility.
• HEIC to JPG Converter — convert iPhone photos to universally compatible JPG format.
• AVIF to JPG Converter — convert next-gen AVIF images to JPG for maximum compatibility.