parquet

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

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

Commandline tool for running SQL queries against JSON, CSV, Excel, Parquet, and more.

Create full-fledged APIs for slowly moving datasets without writing a single line of code.

Blazing-fast Data-Wrangling toolkit

Official Rust implementation of Apache Arrow

Apache Parquet Java

Rill is a tool for effortlessly transforming data sets into powerful, opinionated dashboards using SQL. BI-as-code.

Apache Parquet Format

Apache Drill is a distributed MPP query layer for self describing data

Petastorm library enables single machine or distributed training and evaluation of deep learning models from datasets in Apache Parquet format. It supports ML frameworks such as Tensorflow, Pytorch, and PySpark and can be used from pure Python code.

A large-scale entity and relation database supporting aggregation of properties

Real-time analytics on Postgres tables

Open-source Snowflake and Fivetran alternative bundled together

cryo is the easiest way to extract blockchain data to parquet, csv, json, or python dataframes

Query anything (GitHub, Notion, +40 more) with SQL and let LLMs (ChatGPT, Claude) connect to using MCP

Quilt is a data mesh for connecting people with actionable data

A portable embedded database using Arrow.

Fastest open-source tool for replicating Databases to Data Lake in Open Table Formats like Apache Iceberg. ⚡ Efficient, quick and scalable data ingestion for real-time analytics. Supporting Postgres, MongoDB , MySQL and Oracle

ADAM is a genomics analysis platform with specialized file formats built using Apache Avro, Apache Spark, and Apache Parquet. Apache 2 licensed.