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Which is the best freeware for converting jpg files in different folder to png in a batch process on a windows xp?

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closed as off-topic by Olli, random Feb 12 '14 at 22:53

This question appears to be off-topic. The users who voted to close gave this specific reason:

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I thought for sure we'd had this Q, but the other ones were about linux. Anyway, Wil's answer, imagemagick, applies here also. – hyperslug Jul 10 '10 at 12:03
up vote 4 down vote accepted

while irfanview is officially a viewer, it does a pretty good job at he sort of batch conversions you're talking about

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  • nconvert from xnview - batch utility to convert graphic files, support of more than 400 graphics formats!
  • xnview by itself (if you like GUI tools)
  • imagemagic (windows version is here)

irfanview is ugly, IMHO.

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FastStone Photo Resizer lets you convert images in batch mode. It supports JPEG, BMP, GIF, PNG, TIFF and JPEG2000 formats.

alt text

x2y can also convert multiple images from different directories to a new format in batch mode.

alt text

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