✺ The tools · Batch Converter
Batch Converter
Convert a whole folder to WebP, AVIF or optimised PNG at the quality you choose. Per-file or one ZIP, nothing uploaded.
- WebP, AVIF and lossless-optimised PNG, encoded in your browser with the Squoosh WebAssembly codecs
- One quality dial per batch, with the size saving shown live on every finished file
- Mix formats across drops: the format and quality lock in per image the moment you add it
- Download any single result or the whole batch as one ZIP, with no uploads and no per-image fees
Get all-access, £5.99/month →Every tool, one subscription.
Runs entirely in your browser. Your files never leave your machine.
See it in action

Three steps
- Pick a format and quality
- Drop your images
- Download each file, or the batch as a ZIP
- Takes
- Browser-readable images, one or a batch.
- Gives
- WebP, AVIF or lossless-optimised PNG, single files or a ZIP. Encoded in your browser, nothing uploaded.
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