Image to WebP Converter icon

Image to WebP Converter

by kenneth Β· alphis.net Β· Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

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

Users
83
+5 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#90K
#75K among extensions
Version
1.0.0
updated 6 Dec 2025

Users

monthly, 11 months
04284Dec 2025Jun 2026Oct 2026
Latest, 16 Oct 2026: 83 usersMove the mouse over the chart for any month

Ratings count

monthly, 11 months
023Dec 2025Jun 2026Oct 2026
Latest, 16 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Image to WebP Converter

πŸ–ΌοΈ 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: - πŸ“‰ 25-35% smaller than JPEG at equivalent quality - πŸ“‰ 26% smaller than PNG with the same transparency support - πŸš€ Perfect for websites, social media, and anywhere file size matters πŸ”’ 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. πŸ“¦ 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. πŸ“΄ 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: - πŸ“· JPEG / JPG - Perfect for photos - πŸ–ΌοΈ PNG - Including transparent images - 🎞️ GIF - Static images (first frame) - πŸ“„ BMP - Legacy bitmap files - πŸ†• AVIF - Modern format conversion - ✏️ SVG - Vector graphics - πŸ”· ICO - Icon files - πŸ—‚οΈ TIFF - Professional/archival images - πŸ”„ WebP - Re-compress existing WebP files πŸ‘₯ Perfect For: πŸ’» 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. πŸ›’ 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. πŸ“± Social Media Managers Manage multiple accounts and need to optimize images quickly? Batch convert entire folders in seconds. πŸ” 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: βœ… Drag & drop or click to select files βœ… Batch convert unlimited images βœ… Adjustable quality (1-100%) βœ… Real-time file size preview βœ… Individual or ZIP download options βœ… Beautiful dark/light theme (follows your system preference) βœ… Clean, intuitive interface βœ… Zero permissions required βœ… Completely free πŸ”§ 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. πŸ“– 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. πŸš€ 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.

Growth

WindowUsersChangeRatingsRating
7 daysβˆ’5βˆ’5.7%00.00
30 days+5+6.4%00.00
6 months+59+245.8%00.00

Version history

1 versions recorded
1.0.04 Dec 2025

Details

Category
Developer Tools
First seen
4 Dec 2025
Size
60 KB
Languages
en
Pricing
Free
Privacy policy
alphis.net
Support
alphis.net
Extension ID
imkfmnpfhpdnegbocopngkileaefgehb

Permissions and risk

Minimal riskimpact 0, likelihood 1

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