What is the Bulk Image Format Converter?
A bulk image converter changes the format of a whole folder of images in one go. Drop any mix of JPG, PNG, WebP, AVIF, HEIC, TIFF, BMP or GIF, pick the output format and quality, and download a single ZIP.
Images are converted inside your browser — nothing is uploaded, so it works for private photos and client work.
How to use the Bulk Image Format Converter
- Drop all your images (any format).
- Choose the output format: WebP, JPG, PNG or AVIF.
- Set quality and transparency options.
- Download the ZIP.
Why use AnyShift's Bulk Image Format Converter
Files stay on your deviceProcessing happens locally in your browser — nothing is uploaded to a server.
Fast, no queueNo upload or download wait. Results are ready as soon as your device finishes.
No signup, no watermarkUse it as often as you like. Output is clean and full quality.
Works everywhereWindows, Mac, Linux, iPhone, Android and Chromebook — any modern browser.
Popular use cases
- Converting a photo library to WebP for a website
- Turning iPhone HEIC photos into JPG in bulk
- Standardising image formats for a CMS
Frequently asked questions
Which format should I choose for the web?
WebP for the best balance of size and compatibility, AVIF for the smallest files, JPG for maximum compatibility.
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Last reviewed: Built for: United States, United Kingdom, Canada, Australia, France Part of Image Convert & Edit