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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 15.3k 1.3k

  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 60 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 60 10

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

    QuestDB Node.js Client

    JavaScript 42 8

Repositories

Showing 10 of 61 repositories
  • ui Public

    Monorepo of QuestDB UI packages

    questdb/ui’s past year of commit activity
    TypeScript 21 25 55 (4 issues need help) 3 Updated Jun 26, 2025
  • questdb Public

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

    questdb/questdb’s past year of commit activity
    Java 15,339 Apache-2.0 1,266 669 (10 issues need help) 45 Updated Jun 26, 2025
  • nodejs-questdb-client Public

    QuestDB Node.js Client

    questdb/nodejs-questdb-client’s past year of commit activity
    JavaScript 42 8 11 1 Updated Jun 26, 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 60 Apache-2.0 19 10 4 Updated Jun 26, 2025
  • questdb/net-questdb-client’s past year of commit activity
    C# 39 Apache-2.0 9 3 0 Updated Jun 25, 2025
  • documentation Public

    QuestDB documentation

    questdb/documentation’s past year of commit activity
    HTML 3 Apache-2.0 18 10 7 Updated Jun 25, 2025
  • py-questdb-client Public

    Python client for QuestDB InfluxDB Line Protocol

    questdb/py-questdb-client’s past year of commit activity
    Python 60 Apache-2.0 10 11 (1 issue needs help) 4 Updated Jun 24, 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 Jun 18, 2025
  • demo-data Public

    QuestDb demo website injection app

    questdb/demo-data’s past year of commit activity
    Python 5 Apache-2.0 1 0 0 Updated Jun 17, 2025
  • tsbs Public Forked from timescale/tsbs

    Time Series Benchmark Suite, a tool for comparing and evaluating databases for time series data

    questdb/tsbs’s past year of commit activity
    Go 19 MIT 327 0 1 Updated Jun 10, 2025