Image Format Converter — Free Online Tool

The Image Format Converter re-encodes a picture from one format to another — JPG, PNG, WebP, or AVIF — using the browser's own canvas encoder, so the file never leaves your device. Format choice matters more than most people expect: the same photograph saved as PNG can be five to ten times larger than the WebP version at a quality difference nobody can see on a screen.

The short version of when to use what: JPG for photographs when you need maximum compatibility, PNG when you need real transparency or pixel-exact screenshots and diagrams, WebP as the modern default for the web because it handles both photos and transparency at much smaller sizes, and AVIF when you want the smallest file and your audience is on current browsers. Converting a JPG to PNG will not recover detail the JPG already discarded — it just makes a bigger file — so convert in the direction that matches what the image is for.

Common reasons people land here: a CMS or job application form that only accepts JPG, a logo that needs transparency preserved as PNG, or a batch of product photos being moved to WebP to cut page weight before a site launch. Converting a transparent PNG to JPG will flatten the transparency onto a solid background, which is worth knowing before you overwrite the original.

Conversion runs entirely in your browser through the Canvas API — no upload, no queue, and no copy of your image sitting on a server afterwards.

Our Image Format Converter is completely free to use with no signup required. For this tool, processing runs in your browser — your files and data stay on your device and are not uploaded to our servers.

Whether you are a developer, designer, student, or business owner, this tool is designed to save you time and make your workflow more efficient. Bookmark this page to access it whenever you need it — it will always be free.