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QuestDB

QuestDB is the fastest open source time-series database

QuestDB

Banner with illustration of QuestDB, the open source time series database

QuestDB is a high-performance, open-source database for time series data. It focuses on fast ingest, blazingly fast queries and superior developer experience with SQL and open formats.

QuestDB is designed from the ground up to operate as close to the hardware as possible -- eliminating ingestion bottlenecks and lowering overall hardware requirements.

The codebase is built from scratch in zero-GC Java, C++ and Rust.

To learn more about QuestDB, check the following:

Join our active public Slack and our community forum

See our public roadmap at public roadmap.

Community and Contributions

You can contribute to the QuestDB open source project: source code, documentation, bug reports, feature requests or feedback.

To get started:

  1. Good first issues
  2. Contribution guide
  3. Fork the repo and open a pull request.

We send QuestDB swag to our contributors 🙌.

🌍 Building around the world

QuestDB is a remote-first company building high performance open-source software. We're always on the lookout for talented people to join the QuestDB team in these roles:

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  1. questdb questdb Public

    QuestDB is a high performance, open-source, time-series database

    Java 15.8k 1.4k

  2. net-questdb-client net-questdb-client Public

    C# 39 9

  3. c-questdb-client c-questdb-client Public

    Rust, C and C++ client for QuestDB InfluxDB Line Protocol

    Rust 62 19

  4. go-questdb-client go-questdb-client Public

    Golang client for QuestDB's Influx Line Protocol

    Go 57 9

  5. py-questdb-client py-questdb-client Public

    Python client for QuestDB InfluxDB Line Protocol

    Python 62 10

  6. nodejs-questdb-client nodejs-questdb-client Public

    QuestDB Node.js Client

    TypeScript 42 8

Repositories

Showing 10 of 61 repositories
  • questdb Public

    QuestDB is a high performance, open-source, time-series database

    questdb/questdb’s past year of commit activity
    Java 15,787 Apache-2.0 1,444 678 (10 issues need help) 47 Updated Jul 13, 2025
  • c-questdb-client Public

    Rust, C and C++ client for QuestDB InfluxDB Line Protocol

    questdb/c-questdb-client’s past year of commit activity
    Rust 62 Apache-2.0 19 10 3 Updated Jul 11, 2025
  • documentation Public

    QuestDB documentation

    questdb/documentation’s past year of commit activity
    HTML 4 Apache-2.0 19 10 4 Updated Jul 12, 2025
  • questdb/net-questdb-client’s past year of commit activity
    C# 39 Apache-2.0 9 3 1 Updated Jul 11, 2025
  • questdb-kubernetes Public

    Configuration to run QuestDB in your Kubernetes cluster

    questdb/questdb-kubernetes’s past year of commit activity
    Mustache 35 Apache-2.0 23 3 0 Updated Jul 11, 2025
  • nodejs-questdb-client Public

    QuestDB Node.js Client

    questdb/nodejs-questdb-client’s past year of commit activity
    TypeScript 42 8 9 0 Updated Jul 10, 2025
  • ui Public

    Monorepo of QuestDB UI packages

    questdb/ui’s past year of commit activity
    TypeScript 22 25 39 (4 issues need help) 0 Updated Jul 10, 2025
  • sql-grammar Public

    List of keywords, functions and constants that QuestDB supports

    questdb/sql-grammar’s past year of commit activity
    TypeScript 2 6 0 0 Updated Jul 8, 2025
  • .github Public
    questdb/.github’s past year of commit activity
    0 0 0 1 Updated Jul 8, 2025
  • py-questdb-client Public

    Python client for QuestDB InfluxDB Line Protocol

    questdb/py-questdb-client’s past year of commit activity
    Python 62 Apache-2.0 10 11 (1 issue needs help) 3 Updated Jul 7, 2025