Image Converter
Convert
Transparent areas are filled with this color — JPG cannot store transparency.
The canvas previews the converted result live as you adjust the settings. Click Convert for the exact size and a before/after split — drag the divider to judge the quality, then download. The original file is never modified.
Your images are processed locally in your browser and never uploaded to any server.
Convert any image to JPG, PNG, WebP or AVIF: mixed inputs welcome, batch supported, all locally in your browser. The converter sniffs the real format from the file bytes (not the extension), so mislabeled files still convert correctly.
This is the general-purpose tool for when you do not want to hunt down a specific format-to-format page: drop in a mixture of JPGs, PNGs, WebPs, and more, choose one output format, and the whole set comes back converted. Because it reads each file's real type from its contents rather than trusting the extension, it also quietly fixes the common mess of a file saved with the wrong suffix.
How to use the image converter
- Add the images you want to convert (drag-and-drop or file picker, up to 30 at once).
- Choose the output format: JPG for photos, PNG for transparency, WebP/AVIF for size.
- Click Convert; each file reports its result as it finishes.
- Download files individually or all at once as a ZIP.
Picking the output format
Match the target to the job: JPG for photographs with no transparency, PNG when you need an alpha channel or pixel-exact graphics, WebP as the modern web default that is smaller than both while still supporting transparency, and AVIF when maximum compression matters and you control where the image will be displayed.
The tool converts a mixed batch to whichever single format you choose, so it is ideal for standardising a folder of assorted images before uploading them somewhere. For a specific, repeated pairing, such as HEIC to JPG or PNG to WebP, the dedicated tools carry extra format-specific guidance, but for one-off and mixed jobs this converter is the quickest route.
Frequently asked questions
Which output format should I choose?
JPG for photographs without transparency, PNG when you need an alpha channel or pixel-perfect graphics, WebP as the modern default (smaller, supports transparency), and AVIF when maximum compression matters and you control the target environment.
Can it detect the format of mislabeled files?
Yes. The tool reads each file's magic bytes rather than trusting the extension. A PNG renamed to .jpg is converted as the PNG it truly is, which fixes a surprising number of "this file is broken" mysteries.
Is converting lossless?
Converting to PNG is lossless from the decoded pixels. Converting to JPG, WebP or AVIF applies the quality setting you choose. 85+ is visually lossless for photos. Note that converting a lossy file to a lossless format never recovers data already discarded.
Learn more
- JPG vs WebP vs AVIF vs PNG: Which Format Should You Use?
JPG, PNG, WebP or AVIF? A clear 2026 comparison: size, quality, transparency, browser support, and which format fits each real-world use case.