Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process. Build Efficiently. Deliver Lightning Performance for Data-Intensive Apps. Scale Globally.
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At Harper, we take special care to distinguish between open source and source available software.
Open source software must be licensed under an OSI-approved license (we use Apache 2.0 as the default), allowing anyone to use, modify, and distribute the software freely. The core, @HarperFast/Harper repo is open source along with many additional Harper plugins, applications, examples, tooling, and more.
Source available software, on the other hand, allows users to view the source code but may have restrictions on its use, modification, or distribution. By default, we use the Elastic License 2.0 for source available projects. Certain Harper products, such as the Harper Replication Plugin and Harper Fabric will be made source available in the future. While a majority of our projects are open source, always pay special attention to the license within any repository or distribution to understand the specific terms and conditions that apply.
