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@HarperFast

Harper

A Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process. Build faster. Scale globally.
README.md
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Harper is an open-source Node.js platform that merges your database, cache, app logic, and messaging into a single in-memory runtime. It looks like a distributed system, but feels as simple as running one service — making it the easiest way to ship fast, data-intensive, real-time, globally scaled applications.

The typical journey is: develop locally with Harper, then deploy and operate globally on Harper Fabric.

Key resources

Community

  • Discord – Chat with the team and community, ask questions, and share what you’re building.

  • YouTube – Deep dives, Harper Learn episodes, and live coding sessions.

Contributing

We welcome issues and PRs in the core Harper repo and across the ecosystem.

Open Source vs Source Available

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.

For more information on licensing read our Licensing FAQ

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Repositories

Showing 10 of 109 repositories
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    RocksDB binding for Node.js

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    C++ 3 Apache-2.0 0 26 3 Updated Dec 15, 2025
  • bigquery-sync Public

    An example of how to ingest data from Big Query to harper efficiently.

    HarperFast/bigquery-sync’s past year of commit activity
    JavaScript 1 Apache-2.0 0 3 0 Updated Dec 15, 2025
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    Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process.

    HarperFast/harper’s past year of commit activity
    JavaScript 54 Apache-2.0 2 17 (1 issue needs help) 7 Updated Dec 15, 2025
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    Grafana datasource plugin for Harper

    HarperFast/grafana-datasource’s past year of commit activity
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  • edge-ai-ops Public

    This repository demonstrates edge AI implementation using Harper as your data layer and compute platform. Instead of sending user data to distant AI services, we run TensorFlow.js models directly within Harper, achieving sub-50ms AI inference while keeping user data local.

    HarperFast/edge-ai-ops’s past year of commit activity
    JavaScript 1 Apache-2.0 2 0 0 Updated Dec 14, 2025
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    The web-based management studio for HarperDB

    HarperFast/studio’s past year of commit activity
    TypeScript 4 Apache-2.0 3 1 2 Updated Dec 14, 2025
  • documentation Public

    Documentation for Harper

    HarperFast/documentation’s past year of commit activity
    TypeScript 7 Apache-2.0 8 22 11 Updated Dec 12, 2025
  • mqtt-getting-started Public
    HarperFast/mqtt-getting-started’s past year of commit activity
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  • harper-ecommerce-template Public

    An ecommerce template using Harper as the dynamic data source, caching solution, and the Harper Next.js component

    HarperFast/harper-ecommerce-template’s past year of commit activity
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    An example of how to use `@harperdb/nextjs` to build a Next.js application on HarperDB

    HarperFast/nextjs-example’s past year of commit activity
    JavaScript 5 Apache-2.0 2 0 1 Updated Dec 12, 2025
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