bitly/go-simplejson

go-simplejson is a small Go package created by Bitly for working with JSON data when you do not know its structure ahead of time. In Go, the usual approach to reading JSON requires you to define a matching data structure before you can use the data. That works well when the JSON format is fixed and known, but it becomes inconvenient when the structure varies, is deeply nested, or is only partially known. go-simplejson offers a different approach: you load JSON into a generic container and then pull values out of it by navigating keys and indices directly in your code, without needing to pre-define the shape. This kind of library is sometimes called a "dynamic JSON" or "untyped JSON" accessor. It trades the compile-time safety of a fully typed struct for the flexibility of working with JSON as a free-form document. The trade-off is common in situations like reading API responses where only a few fields matter, processing configuration data with optional or variable keys, or quickly prototyping code before committing to a fixed data structure. The README is brief and points to the Go package documentation site for full usage details. It does not include code examples or a feature list beyond the one-line description. The package is published by Bitly, the link-shortening and analytics company, and is imported as a standard Go module. With nearly 3,750 stars, the library has seen wide use, though it is a mature project and the README does not mention active development or recent changes. Developers who need richer or more modern dynamic JSON handling in Go may want to review the full documentation to compare it with other available options.