Drop your images
Drag in one or many — they are converted on your device, never uploaded.
Convert
Convert to WebP, AVIF & more.
Batch-convert between WebP, AVIF, JPG and PNG with quality control — free, unlimited, and nothing is ever uploaded.
Drag & drop, or browse
PNG · JPG · WEBP · AVIF · GIF — batch supported, nothing uploaded
How it works
Three steps, no sign-up
Pick a format
Choose WebP, AVIF, JPG or PNG, then tune quality to taste.
Download
Grab each file or the whole batch as a zip in the new format.
What you can do
Every common format, both ways
Go modern with WebP
Swap bulky JPG/PNG for WebP and cut size with no visible loss.
Squeeze more with AVIF
AVIF pushes files even smaller for the best-supported browsers.
Back to JPG or PNG
Need a universally compatible file? Convert straight back.
Your images never leave your device
Every conversion runs locally with WebAssembly. No servers, no uploads, no accounts — your images stay private by design.
Questions
Which format should I choose?
WebP is the safe modern default — smaller than JPG/PNG with wide support. AVIF is smaller still where supported.
Can I convert many images at once?
Yes — drop a whole batch, convert them all to one format and download a single zip.
Does converting lose quality?
You control it. Lossy formats have a quality slider; PNG stays lossless.
Are my images uploaded?
Never. Conversion runs entirely in your browser with WebAssembly — nothing leaves your device.