Image to WebP Converter

Convert common images (such as JPG & PNG) to WebP format locally. No internet needed & guaranteed privacy.

As of June 2026, Image to WebP Converter has 56 users and a 5.00/5 rating from 3 reviews in the Developer Tools category.

Usersup 166.7 percent+166.7%
56
56
Ratingno change0%
5.00
3 reviews
Reviewsno change0%
3
Version
1.0.0
Manifest V3

History

6 snapshots

Tracking since Apr 18, 2026.

58.838.518.200000000000003Apr 18, 2026Jun 3, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 2026215.0031.0.0
Apr 28, 2026245.0031.0.0
May 7, 2026265.0031.0.0
May 15, 2026375.0031.0.0
May 24, 2026435.0031.0.0
Jun 3, 2026495.0031.0.0
Now565.0031.0.0

Permissions & access

Permissions
None declared
Host access
None declared

Screenshots

Image to WebP Converter screenshot 1Image to WebP Converter screenshot 2

About

🖼️ Transform Your Images to WebP - The Smartest Way to Optimize

  Tired of bloated image files slowing down your websites and eating up storage? Image to WebP Converter is
  your one-click solution for converting any image to the modern WebP format - right in your browser, with
  zero privacy concerns.

  ✨ Why WebP?

  WebP is Google's next-generation image format that delivers stunning quality at a fraction of the file
  size. On average, WebP images are:
  - 📉 25-35% smaller than JPEG at equivalent quality
  - 📉 26% smaller than PNG with the same transparency support
  - 🚀 Perfect for websites, social media, and anywhere file size matters

  🔒 Why This Extension?

  100% Local Processing - Your Images Never Leave Your Device

  Unlike online converters that upload your files to remote servers, this extension processes everything
  directly in your browser. Your vacation photos, business documents, personal screenshots - they all stay
  exactly where they belong: on your computer. No uploads. No server storage. No data collection. Ever.

  ⚡ Lightning Fast Conversion

  Because everything happens locally using your browser's built-in capabilities, conversions are nearly
  instantaneous. No waiting for uploads or downloads. No dependency on internet speed. Just drag, drop, and
  done.

  📦 Batch Processing Made Simple

  Need to convert 50 images? 100? No problem. Simply select multiple files at once and let the extension
  handle them all. A real-time progress indicator keeps you informed, and you can download everything as a
  convenient ZIP file or grab individual files one at a time.

  🎚️ Smart Quality Control

  Fine-tune your output with an intuitive quality slider (1-100%). Watch the estimated file sizes update in
  real-time as you adjust, so you can find the perfect balance between quality and compression before
  committing to the conversion. No more guesswork.

  📴 Works Offline

  Once installed, this extension works completely offline. On a plane? In a cafe with spotty WiFi? Working
  in a secure environment with no internet access? No problem. Your image converter is always ready.

  🎨 Supported Formats

  Convert from virtually any image format:
  - 📷 JPEG / JPG - Perfect for photos
  - 🖼️ PNG - Including transparent images
  - 🎞️ GIF - Static images (first frame)
  - 📄 BMP - Legacy bitmap files
  - 🆕 AVIF - Modern format conversion
  - ✏️ SVG - Vector graphics
  - 🔷 ICO - Icon files
  - 🗂️ TIFF - Professional/archival images
  - 🔄 WebP - Re-compress existing WebP files

  👥 Perfect For:

  💻 Web Developers & Designers
  Speed up your websites by converting image assets to WebP. Google PageSpeed Insights recommends WebP for
  better Core Web Vitals scores. This tool makes optimization effortless.

  ✍️ Bloggers & Content Creators
  Faster-loading images mean better user experience and improved SEO. Convert your blog images before
  uploading for snappier page loads.

  🛒 E-commerce Sellers
  Product images are crucial, but they shouldn't slow down your store. Convert product photos to WebP for
  the perfect balance of quality and performance.

  📱 Social Media Managers
  Manage multiple accounts and need to optimize images quickly? Batch convert entire folders in seconds.

  🔐 Privacy-Conscious Users
  If you've ever hesitated to use an online converter because you weren't sure what happens to your files,
  this extension is for you. Your images are processed entirely in your browser's memory and never
  transmitted anywhere.

  😊 Anyone Who Values Simplicity
  No accounts to create. No subscriptions. No ads. No watermarks. No limits. Just a clean, simple tool that
  does exactly what it promises.

  ⭐ Features at a Glance:

  ✅ Drag & drop or click to select files
  ✅ Batch convert unlimited images
  ✅ Adjustable quality (1-100%)
  ✅ Real-time file size preview
  ✅ Individual or ZIP download options
  ✅ Beautiful dark/light theme (follows your system preference)
  ✅ Clean, intuitive interface
  ✅ Zero permissions required
  ✅ Completely free

  🔧 Technical Details:

  This extension uses the HTML5 Canvas API to perform conversions natively in your browser. It requires zero
   special permissions - no access to your browsing history, no access to your tabs, no access to anything
  except the files you explicitly choose to convert.

  The extension is lightweight (under 150KB total) and has no external dependencies that phone home. What
  you see is what you get: a simple, honest tool that respects your privacy and your time.

  📖 How to Use:

  1️⃣ Click the extension icon in your toolbar
  2️⃣ Drag and drop images (or click to browse)
  3️⃣ Adjust quality if desired
  4️⃣ Click "Convert & Download"
  5️⃣ That's it!

  ❓ Frequently Asked Questions:

  Does this work offline?
  Yes! Once installed, no internet connection is needed.

  Is there a file size limit?
  No artificial limits. You're only limited by your device's available memory.

  Is there a limit on number of files?
  No! Convert as many as you need.

  What about transparent images?
  WebP fully supports transparency. Your PNGs will convert perfectly.

  Will I lose quality?
  You control the quality setting. At 85-90%, most images are visually indistinguishable from the original
  while being significantly smaller.

  Why WebP over other formats?
  WebP offers the best balance of compression, quality, and browser support. It's supported by all major
  browsers (Chrome, Firefox, Edge, Safari) and is Google's recommended format for web images.

  🚀 Start Optimizing Today

  Join thousands of users who have simplified their image workflow. Whether you're optimizing for the web,
  saving storage space, or just want smaller files without sacrificing quality, Image to WebP Converter
  delivers - privately, quickly, and completely free.

  ⬇️ Download now and see the difference WebP makes.

Technical

Version
1.0.0
Manifest
V3
Size
59.53KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
imkfmnpfhpdnegbocopngkileaefgehb
Developer ID
u4b432832f79ec1ffde0fd531acb27ac4
Developer Email
[email protected]
Created
Dec 4, 2025
Last Updated (Store)
Dec 6, 2025
Last Scraped
Jun 3, 2026
Website
alphis.net

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Data sourced from the Chrome Web Store · last verified Jun 3, 2026.