Tom Preston-Werner's obvious, minimal language
Generate Java types from JSON or JSON Schema for data-binding
Safely serialize JavaScript expressions to a superset of JSON
Immutable collections for JavaScript
A general purpose SOAP client for PHP
10x faster string search, split, sort, and shuffle for long strings
Auto-validates api requests, responses, and securities using ExpressJS
Provides support to increase developer productivity in Java
Miller is like awk, sed, cut, join, and sort for name-indexed data
GWC is a tile server and caching proxy written in Java
IEC 60870-5-104 protocol tester.
Simple XML editor and XSD viewer
Convert between YAML, TOML, JSON, and HCL
Simple message-based, web-based ETL integration
Mind map and outliner editor for Windows, Mac, Linux, Android and iOS
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
JUL - The JavaScript UI Language
Tools for reading, validating & writing transit schedule info in GTFS
Converts CSV and ODS to KML (KMZ)
From JSON to Core Data and back
Persistent shared object memory and parallelism for Node.js and Python
C++11 serialization library
JavaScript Library for HTML5 canvas based heatmaps