cnvyr.io

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Support and Q&A for the http://cnvyr.io developer API.  The online CSS/JS minifier and thumbnail maker console is also available.

cnvyr.io is a dead simple free API to thumbnail, scale, crop, convert and optimize images, and minify, bundle and gzip CSS or Javascript files into on-demand asset pipelines.

It also supports QR code generator and reader operations.

It is technology neutral - Javascript, Ruby, PHP, command line, etc.