Heroku

Heroku is a cloud-based platform as a service (PaaS) that allows developers to build, deploy, and operate applications without managing underlying infrastructure. It supports multiple programming languages, including Node.js, Python, Ruby, Java, Go, PHP, and Scala, making it suitable for polyglot development teams. Applications are deployed using Git, GitHub, or CI/CD pipelines, and Heroku automatically handles build, dependency resolution, and release management through its buildpack system.

The platform provides managed runtime environments (“dynos”) for running web, worker, and scheduled processes, with simple vertical and horizontal scaling via the dashboard or CLI. Heroku Postgres, Heroku Redis, and a large add-on ecosystem offer managed databases, caching, logging, monitoring, queuing, and third-party integrations. Configuration is handled via environment variables, enabling clean separation of code and settings and supporting twelve-factor app best practices.