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Image to WebP & AVIF Converter

Convert JPEG, PNG & more to modern WebP or AVIF — up to 10 at once. Everything runs in your browser; your images never leave your device.

Drop images here or browse

JPEG, PNG, WebP, GIF, BMP · up to 10 images · 0/10 added

Processed entirely in your browser — never uploaded to a server.Free: up to 10 · Lifetime converts up to 100
Faster images are just the start

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About this image converter

Convert your images to WebP or AVIF — the modern formats that load faster and weigh far less than JPEG or PNG. Everything happens locally: your files are decoded, re-encoded, and downloaded right in the browser, so nothing is ever uploaded to a server. Add up to 10 images, pick a quality level, and download them one by one or all together as a ZIP.

100% in-browser

Images are processed on your device with the Canvas API and a WebAssembly AVIF encoder — never uploaded.

WebP & AVIF

WebP is supported everywhere; AVIF usually compresses even smaller. Adjust quality to balance size and detail.

Bulk + ZIP

Convert up to 10 images at once (100 with Lifetime) and download them individually or as a single ZIP archive.

WebP vs AVIF — which should I use?

  • WebP — broad support across all modern browsers and a great default; typically 25–35% smaller than JPEG.
  • AVIF — usually the smallest files at the same quality, ideal for photos. Encoding takes a little longer (it runs a WebAssembly encoder in your browser).
  • Tip — serve both with a <picture> element so each browser gets the best format it supports, with a JPEG/PNG fallback.

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