Batch Media Converter
Convert multiple images to WebP/JPEG simultaneously and download as ZIP.
Drop multiple images here
Any JPG, PNG, WEBP, or AVIF
0 Files Selected
Conversion Settings
What is this tool?
The Batch Converter processes multiple image files simultaneously in your browser, converting them into WebP, JPEG, or PNG formats. It allows you to select custom compression quality levels and packages all processed images into a downloadable ZIP archive.
How to convert multiple images in batch
- Drag and drop multiple image files into the upload area or click to browse files from your device.
- Choose your desired output format (WebP, JPEG, or PNG) and adjust the compression quality slider.
- Click Convert All to process the entire queue via a dedicated background Web Worker.
- Download individual converted images or save the complete set at once as a compressed ZIP file.
Key Features
- Converts images in parallel using a client-side Web Worker to prevent UI freezing
- Supports output to WebP, JPEG, and PNG formats with configurable quality
- Bundles all converted assets into a single ZIP archive using JSZip
- Displays real-time file conversion progress and file size comparisons
- 100% private in-browser conversion without server uploads
Frequently Asked Questions
What image formats can I convert in batch?
You can upload standard web image formats including PNG, JPEG, WebP, GIF, and SVG, and convert them to optimized WebP, JPEG, or PNG files.
Why should I convert images to WebP?
WebP provides superior lossless and lossy compression compared to PNG and JPEG, often reducing file sizes by 25% to 35% while maintaining visual quality.
Is there a limit on how many images I can convert at once?
Because processing happens directly in your browser's local memory, practical limits depend on your computer's available RAM. Converting dozens of standard images in a single batch works smoothly.
Are my photos uploaded to a remote server?
No. Conversion and ZIP packaging occur entirely within your browser using HTML5 Canvas and Web Workers. Your files never leave your device.
Privacy First
All image conversion and ZIP bundling happen locally in your browser memory. No photos are ever uploaded to any server.