Image Converter
Convert PNG, JPEG, WebP and AVIF images in batch, offline.
Web converters make you upload every file and wait, and most cap the batch size. The Image Converter turns a pile of PNG, JPEG, WebP, GIF, BMP, TIFF or ICO files into PNG, JPEG, WebP or AVIF using native encoders on your own machine. Nothing is uploaded, so private photos and unreleased assets stay local.
Four output formats
Convert to PNG, JPEG, WebP or AVIF. Inputs can be PNG, JPEG, WebP, GIF, BMP, TIFF or ICO.
Quality slider and lossless WebP
Set quality from 1 to 100 for JPEG, WebP and AVIF. WebP also has a lossless switch, which hides the slider because it no longer applies.
Batch with a stop button
Drop many files at once and convert them together, three at a time. You can stop a running batch at any point.
Size savings per file
Each finished file shows its size before and after, and the header shows the total across the batch.
Safe output naming
Files are written next to the original or into a folder you choose. If a name is taken, the tool appends -1, -2 and so on instead of overwriting.
How do I convert PNG to WebP or AVIF in bulk?
Drop the files into the Image Converter, pick WebP or AVIF, set the quality and press Convert all. Each result is saved next to its original or in the output folder you choose, and the original is left untouched.
Does the converter upload my images?
No. Decoding and encoding happen in the desktop app on your machine, and the tool makes no network requests.
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