GStars
    pola-rs

    pola-rs/polars

    Extremely fast Query Engine for DataFrames, written in Rust

    backend
    arrow
    dataframe
    dataframe-library
    dataframes
    out-of-core
    Rust
    MIT
    40.3K stars
    3.2K forks
    40.3K GitHub watchers
    Updated Nov 5, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    5 releases in the last 90 days, the latest 10 days ago, with 444 contributors on GitHub.

    The biggest single-day gain in the last year, +46 stars on Sep 3, coincided with release py-2.0.0-rc.1.

    Use Cases & Benefits

    • Provides a blazingly fast DataFrame query engine implemented in Rust with multi-language bindings including Python, Node.js, and R.
    • Delivers high performance through multi-threading, SIMD optimizations, and efficient memory use with Apache Arrow columnar format.
    • Use for processing large datasets that exceed RAM capacity via hybrid streaming and out-of-core query execution.
    • Use for building complex, optimized data transformation pipelines with lazy and eager execution modes.
    • Use for integrating fast, expressive SQL queries and DataFrame operations in multi-language data science and analytics workflows.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    Polars is a DataFrame interface on top of an OLAP Query Engine implemented in Rust using Apache Arrow Columnar Format as the memory model.

    To learn more, read the user guide.

    SQL commands can also be run directly from your terminal using the Polars CLI:

    Refer to the Polars CLI repository for more information.

    Excerpt from the pola-rs/polars README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Aug 12: +1Aug 27: +16Aug 28: +12Aug 29: +11Aug 30: +14Aug 31: +13Sep 1: +12Sep 2: +7Sep 3: +46Sep 4: +13Sep 5: +4Sep 6: +8Sep 7: +17Sep 8: +8Sep 9: +10Sep 10: +10Sep 11: +4Sep 12: +5Sep 13: +7Sep 14: +4Sep 15: +11Sep 16: +10Sep 17: +12Sep 18: +9Sep 19: +22Sep 20: +18Sep 21: +20Sep 22: +8

    +919 stars over 86 days across 34 snapshot days; best day +46 on Sep 3.

    Forks

    3.2K+212

    Open issues

    2.9K+105

    Compared with peers in Backend

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 8, by 7-day star growth

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