# Apache Flink

> Stateful Computations over Data Streams

- **Canonical URI:** https://www.vioscale.ai/software/apache-flink
- **Category:** Data Engineering Tools
- **Homepage:** https://flink.apache.org
- **Also known as:** apache-flink
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-01T16:03:34.727Z

## Vioscale score

**62.4 / 100**, confidence 24% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 57.8 | 16 | 925 | ✓ |
| github_stars | 83.4 | 5 | 416.8 | ✓ |
| integrations | 0 | 30 | 0 | - |
| github_activity | 63.1 | 18 | 1135.8 | ✓ |
| release_cadence | 0 | 10 | 0 | - |
| security_posture | 0 | 14 | 0 | - |
| package_downloads | 60.8 | 26 | 1580.8 | ✓ |
| stackoverflow_activity | 0 | 12 | 0 | - |

## Pricing

_As of 2026-08-01, [verify at source](https://flink.apache.org). Independently observed._

Open source · Free tier

## About

A framework and distributed processing engine for stateful computations over unbounded and bounded data streams, designed to run in all common cluster environments with in-memory speed and at any scale.

_Independently observed._

## Platform & deployment
- **Deployment:** Self-hosted

## Capabilities

_The capabilities that matter for Data Engineering Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Tool role | Processing engine |
| Processing paradigm | Batch + streaming |
| **Connectivity** | |
| Connector count | - |
| CDC / log-based replication | ✓ |
| **Transformation** | |
| In-warehouse transformation (push-down) | - |
| dbt-native orchestration | - |
| **Deployment** | |
| Self-hosted / open-source available | ✓ |
| Managed cloud available | - |
| **Governance** | |
| Data lineage / asset catalog | - |
| **Authoring** | |
| Python-first authoring | - |
| **Execution** | |
| Incremental / partition-aware runs | - |
| **Quality** | |
| Built-in data quality / tests | - |
| **Scale** | |
| Horizontal scale (distributed executor) | ✓ |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 100 | [link](https://github.com/apache/flink/pulse) | 2026-08-01 | 65% (medium) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Java | [link](https://github.com/apache/flink) | 2026-08-01 | 63% (medium) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/apache/flink) | 2026-08-01 | 99% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://flink.apache.org) | 2026-08-01 | 60% (medium) |
| pricing.price_level | free | [link](https://flink.apache.org) | 2026-08-01 | 60% (medium) |
| pricing.model | open_source | [link](https://flink.apache.org) | 2026-08-01 | 60% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 26,232 | [link](https://github.com/apache/flink) | 2026-08-01 | 90% (high) |
| adoption.package_downloads_weekly | 47,962 | [link](https://pypistats.org/packages/apache-flink) | 2026-08-01 | 85% (high) |

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*Source: Vioscale (https://www.vioscale.ai/software/apache-flink). Independent, evidence-based software intelligence. Cite the canonical URI.*