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The Competitive Image Format for the Web 👉 WebP

WebP is an image compression technology that creates smaller file sizes without compromising on quality


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Anton

3 years ago | 1 min read

WebP is an image compression technology that creates smaller file sizes without compromising on quality

It can reduce the file size from 20% to 80% (or even more) compared to JPEG, PNG, and GIF

WebP vs PNG Encoders
WebP vs PNG Encoders

Key Features



🔷 Developer by Google in 2010

🔷 Open Source

🔷 Extension -> .webp

🔷 MIME type -> image/webp

🔷 Lossless Compression

🔷 Supports Animation

🔷 Supports Alpha Transparency

🔷 Used by Google, Bind, Facebook

Browser Support



✅ Chrome >= v9 (2011 year)

✅ Firefox >= v65 (2019 year)

✅ Opera >= v11.5 (2011 year)

✅ Edge >= v19 (2019 year)

✅ Safari iOS >= v14.4 (2020 year)

✅ Safari* >= v14 (2020 year) // Safari needs macOS 11 or later

⛔ Internet Explorer* (no native support) // IE needs fallback/polyfill

How To Use



1) Using <picture> + <img> tag

<picture>
<source srcset="img/original.webp" type="image/webp">
<source srcset="img/fallback.jpg" type="image/jpeg">
<img src="img/fallback.jpg" alt="Alt Text!">
</picture>

Note This option is recommended, the browser will select its own supported format

2) Using <img> tag only

<img src="img/fallback.jpg" alt="Alt Text!">

Note Only choose this option if you don't care about old browsers (like Internet Explorer)

How To Create



Google has created its own package for Linux, Windows and macOS with command-line tools that can be used to transform your existing images (PNG, GIF, JPG) to WEBP format

Link: https://developers.google.com/speed/webp/download

This package includes:

  • The libwebp library, which can be used to add WebP encoding or decoding to your programs.
  • cwebp -- WebP encoder tool
  • dwebp -- WebP decoder tool
  • vwebp -- WebP file viewer
  • webpmux -- WebP muxing tool
  • gif2webp -- Tool for converting GIF images to WebP

Usage (Windows Example)

cwebp.exe delivery_parcel.png -q 80 -o delivery_parcel.webp
  • delivery_parcel.png - source file
  • -q 80 - quality param set to 80%
  • -o delivery_parcel.webp - output file

Online Converters

CMS & JS Frameworks Support



CMS

JS Frameworks (that has optimized image component)

  • NextJS
  • Gatsby
  • Nuxt

CDN Automatic Conversion

Some CDNs support automatic next-gen conversion of your images, like Cloudflare (although it's not a free feature and comes with a PRO plan - $20/mo)

Thanks for reading 👍
Follow me on Twitter - https://twitter.com/therceman

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Created by

Anton

👋 Hi, I’m Anton (therceman) 💻 Web Developer and Bug Bounty Hunter 💬 I Am Sharing My Web Development & InfoSec Knowledge ... 🌐 www.therceman.dev 🐤 twitter.com/therceman 💼 linkedin.com/in/therceman 📷 instagram.com/therceman


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