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callanagi

Utilities

Image converter

Convert and resize PNG, JPEG and WebP in batches, without uploading a single file.

Runs on your device

Drop images here

Or pick them from your device. Nothing is uploaded, so a batch of forty costs you nothing but your own processor.

Re-encoding an image throws away the metadata a camera writes into it, including the GPS coordinates of the spot where the photo was taken. The converted file carries none of it.

Convert to
Lower means a smaller file and more visible artefacts. PNG is lossless and ignores this.
Resize
Leave both empty to keep the original size. Fill in one and the other follows.

Images

Nothing here yet. Add images above.

How this tool runs

There is no server-side version of this tool, so there is no choice to make and nothing to send.

Convert between PNG, JPEG and WebP, resize by width or height, and choose the quality, for one image or for forty at once. Your browser reads the files, re-encodes them and hands them straight back, so there is no queue, no rate limit, and no copy of your photos sitting on a server you cannot inspect. Open the network tab while you use it and watch nothing leave. Re-encoding has a second effect that most converters never mention: it discards the metadata your camera wrote into the file, including the coordinates of the place where the photo was taken.

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