Apache Hop vs Miller
Apache Hop
hop.apache.orgMiller
miller.readthedocs.ioSide by side
| Figure | Apache Hop | Miller |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Data Transformation Tools | 9.0 (#5) | 7.6 (#25) |
| Integrations | Listed integrations include PostgreSQL, MySQL, Oracle, SQL Server, Snowflake, BigQuery, Redshift, Databricks, MongoDB, Neo4j, Kafka, Cassandra, Salesforce, SAP, Parquet, Avro, S3, Azure Blob, Google Cloud Storage, REST and SFTP. | The documentation describes Miller as complementary to R, pandas, SQL databases, and the Unix toolkit. |
| License | The project says Hop is developed in the open under the Apache License 2.0. | The project repository identifies Miller's license as two-clause BSD. |
| Purpose | Apache Hop is an open source platform for data integration and orchestration, with visual pipelines and workflows. | 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 | Community support is volunteer-based and free, but the project says it cannot promise response times; commercial providers offer services such as SLAs, training, and migration. | 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
In their own words
Apache Hop
Apache Hop is an open-source platform for data integration and orchestration. Its visual canvas lets users assemble pipelines, preview rows at individual steps, and watch live data and metrics during execution. A pipeline can run locally, on Hop Server, on Apache Spark, or on Flink and Dataflow through Apache Beam. Hop includes more than 250 pipeline transforms, more than 80 workflow actions, and support for over 40 database dialects. Listed connections include PostgreSQL, MySQL, Oracle, SQL Server, Snowflake, BigQuery, Kafka, Salesforce, SAP, S3, REST, and SFTP. Teams can switch environments when moving projects from development to production and keep credentials outside pipeline definitions. Apache Hop is free under the Apache License 2.0. It runs on Linux, macOS, and Windows; Hop Web works in modern browsers. Release 2.19.0 requires Java 21. Docker images and a Kubernetes Helm chart are available; Hop Web is work in progress and provided as-is.
Miller
Miller has no write-up on Specifiction yet; its figures are above.