Coalesce Catalog vs Miller
Coalesce Catalog
coalesce.ioMiller
miller.readthedocs.ioSide by side
| Figure | Coalesce Catalog | Miller |
|---|---|---|
| Price from | $150/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 4 | 1 |
| Spec score · Data Transformation Tools | 9.1 (#3) | 7.6 (#25) |
| Integrations | Catalog integrations include warehouses and databases such as Snowflake, Databricks, BigQuery, Redshift, PostgreSQL, SQL Server, and Salesforce; BI tools such as Tableau, Power BI, Looker, Sigma, Qlik Sense, and Metabase; Airflow, dbt, Fivetran, Monte Carlo, Soda, Slack, Gmail, Okta, and Google SSO. | The documentation describes Miller as complementary to R, pandas, SQL databases, and the Unix toolkit. |
| Purpose | Coalesce Catalog connects across the data stack, documents assets with AI, and keeps lineage, ownership, and definitions current automatically. | Miller is a command-line tool for querying, shaping, and reformatting data files in formats including CSV, TSV, JSON, JSON Lines, YAML, and DCF. |
| Support | The Starter plan includes onboarding workshops and 24x5 support, while Enterprise and Business Critical include priority support and enhanced service-level agreements. | The project directs users to GitHub Discussions for general questions, Stack Overflow for tagged questions, and GitHub Issues for bug reports and feature requests. |
Plans
Coalesce Catalog
- DeveloperFree
- Starter$150 a month
- Business CriticalPriced on request
- EnterprisePriced on request
In their own words
Coalesce Catalog
Coalesce Catalog is a data catalog for discovering, documenting, and governing assets across a data stack. Its AI-assisted natural-language search covers domains, dashboards, tables, and columns, while automated lineage maps data from sources to BI tools at column level. A metadata-powered semantic layer supports collaborative cataloging and documentation. Governance features include access monitoring and control, sensitive-data classification, role-based controls, and audit trails. Integrations span warehouses, databases, BI tools, and services including Snowflake, Databricks, BigQuery, Tableau, Power BI, dbt, Slack, and Okta. Coalesce says it can document up to 90% of a database in seconds by propagating material from connected tools. Its Public API can read and update metadata such as tables, columns, dashboards, lineage, and quality tests. The free Developer plan includes one user, one project, one environment, and 2,000 monthly actions. Starter costs $150 a month, billed annually, and includes three Catalog integrations. Coalesce lists web and API platforms.
Miller
Miller has no write-up on Specifiction yet; its figures are above.