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3 tools

ClickHouse, Inc. · Analytical engines & OLAP

Open-source columnar OLAP database server for fast aggregations over billions of rows, with MergeTree storage, SQL and a managed ClickHouse Cloud

Apache-2.0Open sourceFreeLocalSelf-hostedNov 2, 2026

Tiger Data (formerly Timescale) · Relational databases

PostgreSQL extension for time-series data adding hypertables, compression and continuous aggregates, from the company now named Tiger Data

Apache-2.0 AND LicenseRef-Timescale-LicenseOpen sourceFreeSelf-hostedNov 2, 2026

Corporation for Digital Scholarship · Citation management

Free, open-source reference manager with browser connectors, word-processor plugins, a PDF reader, group libraries and optional paid file storage

AGPL-3.0-onlyFreeOpen sourceLocalNov 2, 2026

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