2014 UPDATE I have updated this post here: Benchmark of node.js JSON Validation Modules Part 3 Old Post Below are benchmark results for several node.js JSON validation modules. This is an update to a post I made 2 years ago. The following modules are benchmarked: amanda 0.4.7https://github.com/Baggz/Amanda jayschema 0.2.3https://github.com/natesilva/jayschema joi 2.5.0https://github.com/spumko/joi