Apache Beam vs Timely Dataflow
Apache Beam
beam.apache.orgTimely Dataflow
timelydataflow.github.ioSide by side
| Figure | Apache Beam | Timely Dataflow |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Stream Processing Software | 9.0 (#2) | 6.6 (#23) |
| Intended users | Beam is aimed at data and software developers building data processing pipelines on supported back ends. | The project invites people building dataflow programs and contributors to report their experiences and help improve examples and documentation. |
| License | Apache Beam is distributed by the Apache Software Foundation under the Apache License version 2.0. | The GitHub repository identifies the project as MIT licensed. |
Plans
In their own words
Apache Beam
Apache Beam is an open-source programming model for building data-processing pipelines across batch and streaming workloads. The same model can support both patterns in production, while runners provide different execution back ends, including Dataflow, Flink, Spark, and the Direct Runner. SDKs and quickstarts cover Java, Python, Go, and TypeScript. Pipeline building blocks include ParDo, GroupByKey, Flatten, and Combine, alongside windowing and triggering. Beam I/O connectors supply read and write transforms for external storage in batch or streaming pipelines, with catalog examples such as BigQuery, Snowflake, Apache Parquet, and Apache Iceberg. Beam Playground provides a way to try examples and transforms without a local installation. The software is free and open source; the listed plan is free, but execution costs depend on the runner and infrastructure selected. It targets data and software developers building pipelines on supported back ends. APIs may change before the first stable 1.x release, and semantic-versioning practice has exceptions.
Timely Dataflow
Timely Dataflow has no write-up on Specifiction yet; its figures are above.