PicZero No uploads · 100% on-device

Convert

Convert between JPG, PNG, WebP and AVIF in batches

Everything runs inside your browser

Convert, right in your browser: open it and start, with no sign-up, and your files never leave your device.

Guide and FAQ

What it does

  • Higher quality means a bigger file; 85% is usually visually lossless.
  • Fill transparent areas with the background (JPG has no alpha)

How to use it

  1. Drop your images onto the page, or click to choose files.
  2. Adjust the settings you need; the result previews as you go.
  3. Export when it looks right, and the file saves straight to your device.

Frequently asked questions

Are my files uploaded to a server?

No. Everything in PicZero runs in your browser. Your images are never uploaded, and the server never touches your files.

Is it free? Are there any limits?

It is completely free, with no limits on the number of images, how often you use it, or file size. No account or sign-in is required.

Does it work on phones and computers?

Yes. It runs in modern browsers such as Chrome, Edge, Safari and Firefox, on phones, tablets and desktops.