Best image to WebP converter

What is WebP and why convert to it?

WebP is an image format developed by Google, designed to produce smaller file sizes than JPEG and PNG while maintaining comparable or better visual quality. It supports both lossy and lossless compression, as well as transparency (like PNG) and animation (like GIF).

WebP vs JPEG vs PNG vs GIF: size comparison

Google's own benchmarks show WebP is 25-35% smaller than JPEG at equivalent quality, and 26% smaller than PNG for lossless images.

Who should convert images to WebP?

• Web developers who want faster page loads and better Core Web Vitals (LCP scores)
• E-commerce stores reducing bandwidth costs across thousands of product images
• Bloggers and content creators keeping page speed scores high
• Mobile app developers embedding assets efficiently
• Anyone who wants to shrink images for email, cloud storage, or sharing

How to convert an image to WebP online

1. Go to Image to WebP. Works in any modern browser, no extensions needed.
2. Drag and drop your images onto the drop zone, or click to browse. You can add up to 10 files at once.
3. The converter processes each file locally in your browser using the Canvas API.
4. Preview each result, then download individually or all at once.

Processing is instant for most images. Larger files (multi-megapixel photos) may take a few seconds.

Supported input formats

WebP browser support: is it safe to use?

As of 2025, WebP is supported by over 97% of global browser users:

The only significant gap is Internet Explorer, which is now retired. For most projects, WebP-only delivery is acceptable. For legacy support, serve WebP with a JPEG/PNG fallback using the <picture> element.

<picture>
  <source srcset="image.webp" type="image/webp">
  <img src="image.jpg" alt="Description" width="800" height="600">
</picture>

How much smaller will my images be?

Results vary by image content, but typical reductions are:

Lossy vs lossless WebP: which is better?

Lossy WebP (the default for photo-like content):

• Smaller files
• Slight quality reduction, invisible at moderate settings
• Best for photos, hero images, and product shots

Lossless WebP (for graphics, logos, screenshots):

• Pixel-perfect reproduction
• Slightly larger than lossy, but smaller than PNG
• Best for text-heavy images, diagrams, and UI screenshots

The tool automatically chooses the best encoding mode based on your source image.

WebP and Core Web Vitals / SEO

Google's Largest Contentful Paint (LCP) is one of the Core Web Vitals metrics that directly affects search ranking. Large hero images are the most common LCP element. Converting them from JPEG to WebP typically:

• Reduces LCP image download time by 25-40%
• Improves PageSpeed Insights score
• Reduces bounce rate on mobile connections

Search engines like Google crawl and index WebP images correctly. There is no SEO penalty for using WebP.

Next.js, React, and framework integration

Next.js automatically converts and serves images as WebP when you use the <Image> component:

import Image from 'next/image';

<Image src="/hero.jpg" alt="Hero" width={1200} height={600} />
// serves hero.webp to browsers that support it

For static sites or other frameworks, convert your images to WebP manually using this tool, then reference the .webp files directly.

WordPress WebP support

WordPress 5.8+ natively supports WebP uploads. You can:

1. Convert images to WebP with this tool.
2. Upload .webp files via the Media Library.
3. Or use a plugin like Imagify, ShortPixel, or Smush to auto-convert on upload.

How to serve WebP on different servers

Apache (.htaccess)

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{HTTP_ACCEPT} image/webp
  RewriteCond %{REQUEST_FILENAME}.webp -f
  RewriteRule (.+)\.(jpe?g|png)$ $1.webp [T=image/webp,E=accept:1]
</IfModule>

Nginx

map $http_accept $webp_suffix {
  default   "";
  "~*webp"  ".webp";
}
location ~* \.(png|jpe?g)$ {
  try_files $uri$webp_suffix $uri =404;
}

Cloudflare / CDN

Enable Polish (Cloudflare) or the equivalent image optimization feature for automatic WebP conversion with no code changes.

Frequently asked questions

Does converting to WebP reduce image quality?

At quality settings above 75%, the difference is imperceptible to most viewers. The converter uses the browser's built-in WebP encoder, which is the same engine Chrome uses for its own image rendering.

Can I convert WebP back to PNG or JPEG?

Yes. Open the WebP file in any modern browser, right-click, and choose Save Image As. For reverse conversion, use the Image to PNG or Image to JPG tool.

Does WebP support EXIF metadata?

WebP supports embedded metadata (EXIF, XMP, ICC profiles). However, browser-based Canvas conversion strips metadata to reduce file size. If preserving EXIF is critical, use a command-line tool such as cwebp with the -metadata all flag.

Is there a file size limit?

No server-side limit applies because conversion happens entirely on your device. The practical limit is your browser's available RAM. Images above roughly 80 megapixels may cause slowdowns on devices with less than 4 GB RAM.

Will WebP work in email clients?

Email client support for WebP is limited. Gmail on Chrome renders WebP; Outlook does not. For email campaigns, stick with JPEG or PNG.

How is WebP different from AVIF?

AVIF (AV1 Image File Format) is the next-generation successor to WebP, typically 20-50% smaller at the same quality. However, browser support is narrower (around 90% globally) and encoding is slower. WebP is the safe default for 2025. AVIF makes sense for performance-critical images alongside a JPEG fallback.

Best practices for WebP in production

1. Always provide a fallback for the remaining ~3% of browsers using <picture> and <source>.
2. Include width and height attributes to prevent layout shift, which affects the CLS score.
3. Use loading="lazy" on below-the-fold images.
4. Do not re-compress an already-lossy image multiple times. Quality degrades with each round.
5. Use lossless WebP for UI screenshots and text-heavy images to avoid compression artifacts on sharp edges.

Related tools

• Image Compressor: batch-compress up to 10 images with quality control.
• Image to PNG: lossless export when you need full fidelity.
• Image to JPG: universal format for photos.
• Image to ICO: create favicons from any image.