A high-performance JSON parser and object marshaller for Ruby, optimized for speed and compatibility.
Oj is a Ruby gem that provides a fast JSON parser and object marshaller, designed to efficiently serialize and deserialize JSON data. It solves the need for high-performance JSON handling in Ruby applications, offering significant speed improvements over standard libraries while maintaining compatibility with existing codebases.
Ruby developers working on applications that require efficient JSON parsing and serialization, especially those using Rails, ActiveSupport, or the JSON gem who need performance enhancements.
Developers choose Oj for its superior speed, multiple compatibility modes, and seamless integration with popular Ruby frameworks, making it a reliable drop-in replacement for slower JSON libraries.
Optimized JSON
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Oj's C-optimized parser shows benchmarked speed improvements of up to 10x over the standard JSON gem, as highlighted in the performance comparison links in the README.
Supports strict JSON, JSON gem compatibility, and Rails behavior modes, allowing drop-in replacement in diverse Ruby environments without code changes, as detailed in Modes.md.
Easily integrates with Rails and ActiveSupport via documented Rails.md, and is automatically preferred by multi_json for instant performance benefits.
Offers custom mode and object encoding for efficient marshalling of complex Ruby objects, with specifics covered in Advanced.md and Encoding.md.
As a C extension, Oj requires compilation during gem installation, which can fail on systems lacking build tools or with incompatible Ruby versions, as noted in InstallOptions.md.
With multiple modes and numerous options documented in Options.md, properly configuring Oj for optimal performance and compatibility can be complex and time-consuming.
Primarily maintained by a single author, Oj has a smaller ecosystem and slower response to issues compared to more widely used libraries like the JSON gem, affecting long-term support.