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Featured Reviews
Highest Rated
Optipng is good! Thanks.
Lowest Rated
not as good as png gauntlet
User Reviews
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Great PNG optimizer! Extremely useful to design web sites, where each bit of info weights a gold.
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not as good as png gauntlet
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Great single-purpose image optimizer.
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A wonderful tool that can be left running in the evening with -o7 -zm1-9, and in the morning thousands PNG’s are magically shrunk without quality loss. Run them in parallel terminal to double, triple, quadruple the fun!
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Very effective even at default settings, and fast too. My favorite PNG optimization tool.
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Optipng was really good, and it reduced the file sizes of my pngs by a lot
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Optipng is good! Thanks.
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Never had any problems with it. Highly recommended!
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Thanks for sharing this wonderful Open Source Project with us. I use and love it.
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if you can manage to get the old version it will handle much better for you.
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The best!!
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Must have!
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great tool
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Two words: LIGHTNING FAST!
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I use and love it.
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This is an excellent tool.
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This program is great.
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Great work. Supports a lot of formats.
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Since the 0.7.0 rewrite, this tool has been fabulous for programmers thanks to the opng_reduce_image() function it provides, and yet I don't think enough people know about it. Just #include "opngreduc.h" and call opng_reduce_image(png_ptr, info_ptr, OPNG_REDUCE_ALL) just before you call png_write_png(). Every program which produces a png file "SHOULD" reduce color depth and palettize whenever possible, and there's no sense in duplicating all of this effort. Thanks for saving me hours.
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very cool!
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Ridiculously thorough. Much more advanced than pngcrush.
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It works.
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