5 alternatives to polars

pola-rs/polars — Extremely fast Query Engine for DataFrames, written in Rust (40,173 stars, MIT, database, analytics, dev-tools).

These are the closest projects in the JustClaw-It index that we serve licence-cleared code from, ranked by relevance and by our code-quality score (1–10, the mean over each repo's graded components: completeness, code quality, deployability, reusability, strategic value). JustClaw-It also serves 2,044 licence-cleared components from pola-rs/polars itself.

The alternatives in detail

• apache/datafusion
  Apache DataFusion SQL Query Engine
  score 4.7/10 · Apache-2.0 permissive · 9,580 stars · 1,613 components · search them
• biodatageeks/polars-bio
  Blazing-Fast Bioinformatic Operations on Python DataFrames
  score 4.7/10 · Apache-2.0 permissive · 208 stars · 75 components · search them
• elastic/eland
  Python Client and Toolkit for DataFrames, Big Data, Machine Learning and ETL in Elasticsearch
  score 7.1/10 · Apache-2.0 permissive · 693 stars · 50 components · search them
• dbcli/mycli
  Rich MySQL Terminal Client with AutoCompletion, Syntax Highlighting, and Dataframes
  score 5.6/10 · BSD-3-Clause permissive · 11,993 stars · 76 components · search them
• souravroy-etl/slothdb
  An experimental embedded SQL engine in C++20. Query Parquet, CSV, JSON, Arrow, Avro, SQLite, and Excel files directly with SQL, in-process. Early-stage.
  score 5.6/10 · MIT permissive · 412 stars · 167 components · search them

Licence data: JustClaw-It's per-repo licence policy. Is polars still maintained? Check it. Licence details: licence checker. Ranking data from 2026-11-13T02:15:37Z.