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Bulk Image to WEBP Converter

Convert JPG, PNG, and GIF images to WEBP in bulk. Drop multiple images or a whole ZIP folder and download a ZIP of optimized WEBP files. Free, private, and it runs in your browser.
  • Batch & ZIP support
  • Adjustable quality
  • Keeps folder structure
  • No upload, fully private
Updated October 24, 2026 · By Identity Design
Drop images or a ZIP file here
or
Choose files
JPG, PNG, and GIF supported. Files stay on your device.

How to Convert Images to WEBP in Bulk

Three steps, no software to install.

  1. Add images or a ZIP

    Drag in multiple JPG, PNG, or GIF files, or drop a ZIP file that contains your images and folders.

  2. Set the quality

    Keep the recommended quality of 80 or adjust it. You’ll see the size savings for every image as it converts.

  3. Download the ZIP

    Your WEBP images download as a single ZIP file. A single image downloads directly as a .webp file.

Why Use WEBP Images?

WEBP is an image format developed by Google that delivers much smaller files at the same visual quality. According to Google, WEBP images are 25 to 34 percent smaller than comparable JPGs, and lossless WEBP files are about 26 percent smaller than PNGs.
Smaller images mean faster pages, better Core Web Vitals scores, and lower bandwidth costs, which is why tools like Google PageSpeed Insights recommend serving images in next-gen formats.

Tips for Converting Website Images

  • Convert images before uploading them to WordPress or Shopify
  • Zip an entire uploads folder to convert everything in one pass
  • Keep your original files as a backup for future edits
  • Check the savings column and re-run at a different quality if needed

Why Use This Bulk Converter

Built for web designers and developers who optimize lots of images.

True batch conversion

Convert dozens of images at once, from loose files or a ZIP archive.

Quality control

Pick any quality from 40 to 100 and see the size savings for each file.

Keeps your folders

Folder structure and file names are preserved, ready to upload as-is.

Private by design

Images are converted on your device and never uploaded to a server.

Frequently Asked Questions

How do I convert multiple images to WEBP at once?
Select or drag several JPG, PNG, or GIF files into the box above, or drop a ZIP file that contains them. Every image is converted and you get one ZIP file of WEBP images to download.
Can I convert a whole folder of images?
Yes. Compress the folder into a ZIP file and drop it in. With “Keep folder structure” turned on, the converted WEBP files keep the same folders and file names, so you can upload them straight to your site.
What quality setting should I use?
80 is a good balance between file size and image quality for most websites. Use 90 or higher for photography where fine detail matters, and 60 to 70 for thumbnails and background images.
Does WEBP keep transparent backgrounds?
Yes. WEBP supports transparency, so transparent areas in your PNG files stay transparent after conversion.
Does it work with animated GIFs?
Animated GIFs are converted as a still image using the first frame. Other images in the same batch aren’t affected.
Which browsers can convert images to WEBP?
Chrome, Edge, and Firefox on Windows, Mac, Android, and Chromebook can all save WEBP images. Safari, and every browser on iPhone and iPad, can display WEBP but can’t create it, so Mac users should use Chrome, Edge, or Firefox, and iPhone users should convert on a computer.
Are my images uploaded to a server?
No. Every image is converted inside your browser, so your files never leave your device. This also makes it fast, since nothing has to be uploaded or downloaded from a server.
Does WordPress support WEBP images?
Yes. WordPress has supported uploading WEBP images since version 5.8, so you can add the converted files to your Media Library like any JPG or PNG.

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