jason
A blazing fast JSON parser and generator implemented in pure Elixir.
What is jason?
Jason is a high-performance JSON parsing and generation library written in pure Elixir. It solves the need for fast, reliable JSON handling in Elixir applications, offering significant speed improvements over existing alternatives while maintaining strict compliance with JSON standards. The library is designed as a drop-in replacement for libraries like Poison, with better performance and more rigorous specification adherence.
Elixir developers building web APIs, data processing pipelines, or any application requiring efficient JSON serialization/deserialization. It's particularly valuable for projects using Phoenix, Ecto, Absinthe, or Postgrex where JSON performance is critical.
Developers choose Jason for its exceptional performance (often 2x faster than pure-Elixir alternatives), strict standards compliance, and seamless integration with major Elixir ecosystems like Phoenix and Ecto. Its pure-Elixir implementation avoids NIF-related safety concerns while delivering performance comparable to C-based solutions.
Overview
A blazing fast JSON parser and generator in pure Elixir.
Use Cases
Best For
- High-throughput JSON APIs in Phoenix applications
Related Projects
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
