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8 years ago from Luis La Torre, Designer.
I had the same problem 2 years ago and I found a solution that's not going away since it's not web based (but I sync over dropbox)
I use Pixa on OSX, I store 5000+ images on it in various categories
I can store psd, ai, svg, jpg, png, tiff, pdf, bmp, gif, ico, icns, and even sketch, Pixen, Acorn and pixelmator files
It even come with browser extensions to save images or full page screenshots
http://www.pixa-app.com/
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I had the same problem 2 years ago and I found a solution that's not going away since it's not web based (but I sync over dropbox)
I use Pixa on OSX, I store 5000+ images on it in various categories
I can store psd, ai, svg, jpg, png, tiff, pdf, bmp, gif, ico, icns, and even sketch, Pixen, Acorn and pixelmator files
It even come with browser extensions to save images or full page screenshots
http://www.pixa-app.com/