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Comment by williamstein
What's left? c9.io what recently bought by Amazon. There's codenvy still, which is migrating from codenvy.com to codenvy.io for some reason: "The legacy IDE at codenvy.com will be shut down on Friday, November 4th 2016. This is the last phase of our 3 phase sunset for the legacy codenvy.com system (details are below this message). Your account will be automatically migrated to codenvy.io. You will need to reset your password upon first login in that system."