JsonAPI - Application and Data, Languages & Frameworks, and Query Languages
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
graphql.js - A reference implementation of GraphQL for JavaScript - graphql/graphql-js
Teamgantt - Intuitive project planning and collaboration. Beautiful Gantt charts, task-level communication, file sharing, resource management and more.
PostGraphile - GraphQL API for Postgres
Basecamp - A simple and elegant project management system.