Bulk WebP Converter

About

Bulk WebP Converter makes it simple to transform images into the modern WebP format while preserving their original quality and dimensions.

What makes Bulk WebP Converter different

Maintains original image resolution and visual fidelity

Convert multiple images at once with real-time progress tracking

Extension remains open while you work—no interruptions

Download images individually or as a single ZIP archive

Key Features

High-quality conversion with no unwanted resizing

Easy drag-and-drop interface

Adjustable quality settings to balance file size and clarity

Batch processing for large sets of images

ZIP downloads for convenient sharing and storage

File size comparison to see exactly how much space you save

Optional resizing while keeping aspect ratio intact

100% local processing—your images never leave your computer

Perfect for

Web developers optimizing images for faster websites

Content creators preparing graphics for online use

Digital marketers reducing file sizes for campaigns

Anyone wanting to save storage space without losing quality

How to use

Click the extension icon

Drag and drop your images or browse to select files

Adjust quality settings (default 0.6 gives excellent balance)

Click “Convert All”

Download files individually or as a ZIP

Technical Highlights

Supports JPEG, PNG, GIF, BMP, TIFF, and more

Advanced Canvas rendering for accurate results

Built on Manifest V3 for speed and security

Optimized memory handling for large batches

Works fully offline, no internet required

Why WebP?

WebP images are 25–80% smaller than JPEG or PNG while maintaining the same visual quality. This makes websites load faster, saves disk space, and ensures compatibility with all major browsers.
Permissions Explained

Storage: Save your preferences

Downloads: Save converted images

ActiveTab: Keep the extension popup active

Privacy
All image processing happens locally in your browser. Nothing is uploaded or shared externally.