Polars
Polars is a high-performance DataFrame library and query engine written in Rust, designed for fast and efficient data manipulation on a single machine. It provides a multi-threaded, vectorized, and columnar processing engine built on the Apache Arrow memory model, supporting Python, Rust, Node.js, and R. Founded in 2023 as Polars BV, the company offers Polars Cloud, a managed solution that scales the same open-source API from local development to production workloads handling terabytes of data.
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as of September 29, 2025 (Source)
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Extremely fast query engine for DataFrames, written in Rust with Python, Rust, Node.js, and R bindings
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