Convert Images Between JPG, PNG, WEBP & AVIF
Convert images between JPG, PNG, WEBP and AVIF online.
How to use Convert Image
Pick the output format and, for JPG and WEBP, a quality level. Converting a transparent PNG to JPG? Choose the background color that replaces transparency. AVIF encoding is used where your browser supports it and falls back to WEBP where it doesn't — the result card always tells you which format you actually received.
- Drop your file into the box above, or click it to browse. You can also paste from the clipboard.
- Adjust the options to taste — the defaults are sensible for most cases.
- Press Convert and watch the progress bar; everything runs on your device.
- Download your result — individually, or as a ZIP when there are several files.
Like every tool on ImageCompressorKits, this runs 100% in your browser: your file is never uploaded to any server, which makes it safe to use even with private documents — and it keeps working if you go offline after the page loads.
Frequently asked questions
Which format should I choose?
WEBP is the best all-rounder for the web: small, sharp, supports transparency. Use JPG for maximum compatibility with old software, PNG when you need lossless quality, and AVIF for the smallest files on modern browsers.
Why did I get a WEBP when I chose AVIF?
Not every browser can create AVIF files (Safari, notably). When encoding isn't available the tool falls back to WEBP automatically and says so, rather than failing.
Is this tool really free?
Yes — completely free, with no signup, no watermark, and no file limits beyond what your device's memory can handle.
Are my files private?
Yes. Processing happens locally in your browser via JavaScript; nothing is transmitted or stored. See our privacy policy for the full picture.