Topics / #parquet

Parquet projects on GitHub

Tooling for the columnar Parquet storage format used in analytics.

As of , the most-starred Parquet projects on GitHub are openobserve (22.4K stars), questdb (17.4K stars) and arrow (17.2K stars). GitHub.Locker tracks 8 Parquet repositories with 62.9K stars combined. The fastest-growing on October 16 was CNEquity, with +70 stars in a day.

8Projects
62.9KStars in total
+98Stars in a day
Browse in the catalog →github.com/topics/parquet ↗

Hot right now

Most stars gained in a day · Oct 16

+70

CNEquity

rootSunc/CNEquity · ★ 571

之后每天运行一次 cne run daily 保持更新。想要更长的历史，或了解 init 具体做了什么，见初始化指南。

+14

openobserve

openobserve/openobserve · ★ 22.4K

OpenObserve is an open-source, cloud-native observability platform for logs, metrics, traces, frontend monitoring (RUM), session replay and AI/LLM observability — a cost-effective alternative to Datadog, Splunk and Elasticsearch.

+5

open-ontologies

fabio-rovai/open-ontologies · ★ 1.1K

Open Ontologies lets you plan, apply and roll back changes to a production ontology: it shows every consequence as a blast-radius report before you apply a change, then hands the reviewer a proof they can re-check without trusting you or the engine.

+3

questdb

questdb/questdb · ★ 17.4K

QuestDB is an open-source, low-latency time-series database on open formats: it ingests millions of events per second, computes on live data in milliseconds, and keeps years of history queryable through one SQL engine.

The all-time top

8 projects · by stars

  1. #1 · openobserve/openobserve

    openobserve

    OpenObserve is an open-source, cloud-native observability platform for logs, metrics, traces, frontend monitoring (RUM), session replay and AI/LLM observability — a cost-effective alternative to Datadog, Splunk and Elasticsearch.

    22.4K
  2. #2 · questdb/questdb

    questdb

    QuestDB is an open-source, low-latency time-series database on open formats: it ingests millions of events per second, computes on live data in milliseconds, and keeps years of history queryable through one SQL engine.

    17.4K
  3. #3 · apache/arrow

    arrow

    Apache Arrow is a universal columnar format plus a multi-language toolbox for fast data interchange and in-memory analytics — technologies that let data systems store, process, and move tabular data efficiently.

    17.2K
  1. 4

    ducklake

    3.3Kduckdb/ducklake · C++

    DuckLake is an open lakehouse table format that stores data in Parquet files and stores metadata/catalog info in a SQL database, implemented as a DuckDB extension.

  2. 5

    open-ontologies

    1.1Kfabio-rovai/open-ontologies · Rust

    Open Ontologies lets you plan, apply and roll back changes to a production ontology: it shows every consequence as a blast-radius report before you apply a change, then hands the reviewer a proof they can re-check without trusting you or the engine.

  3. 6

    polyledger

    599nahrek/polyledger · Python

    PolyLedger is a resumable indexer that pulls Polymarket's market metadata from the CLOB API and every on-chain OrderFilled trade from Polygon, writing both into a single DuckDB file you can query with plain SQL.

  4. 7

    CNEquity

    571rootSunc/CNEquity · Python

    之后每天运行一次 cne run daily 保持更新。想要更长的历史，或了解 init 具体做了什么，见初始化指南。

  5. 8

    hflow

    298Hebbian-Robotics/hflow · Python

    HFlow is an open source SDK from Hebbian Robotics (YC S26) for building scalable multimodal data pipelines for robotics and physical AI, letting teams verify the quality of the data they use to train AI models.

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