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I'm probably not the only one who noticed, but the second screenshot (for the Graphite stats) is almost certainly from an ExtJS app. Is there an open source equivalent of ExtJS? The pricing seems to have gone up quite a bit from the last time I check a year or so ago. I'd bet it's still a good value for the money, but options are nice to have.

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ExtJS is open source. (GPLv3) Since Graphite is Apache 2.0, it looks like they're only able to use it due to some sort of exemption from Sencha.

I don't know of any total replacements for ExtJS but something like Sproutcore may come close.

ExtJS has two commercial licenses and an open source license: http://www.sencha.com/products/extjs/license/

It's only open source for open source projects. I would be using at $work, so a commercial license is my only option. Way back when, I remember the "discussions" that took place when ExtJS backed off from it's original true open source license.

Perhaps I'll look at Sproutcore now that it's had more time to mature.

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