Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. Google uses Protocol Buffers for almost all of its internal RPC protocols and file formats.
Using the stats below, you can answer questions like "Who's using google protocol buffers", "Which apps are a showcase for google protocol buffers", and "How popular is this library?".
About google protocol buffers usage dataOur market share and usage data is crowd-sourced. This means that we have 100% coverage of popular apps, and the less popular an app is, the more likely we won't have detected its libraries. However, this doesn't invalidate our statistics, because the power law property of app downloads means that the vast majority of all downloads is generated by a relatively small number of popular apps, which we all cover.
The "related libraries" gives a good overview which code is frequently used together with google protocol buffers. These libraries may, for instance, work well together, or may be competitors to google protocol buffers.
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