As cloud popularity grows, so does the collection of free or low-cost online office tools that services like Microsoft Office Online and Google Docs/G Suite provide. However, those two major league offerings, along with a swarm of other cloud-based productivity platforms, are proprietary. Until now, online open source office suites have been little more than vaporware. You can get your document work done fine using an open source local installation, but the inconvenience factor kicks in very quickly when you try to handle collaborative tasks.