Flex for
‍Apache Flink®

Gain visibility, control, and security for Flink at scale. Flex puts you in command of Flink, delivering instant visibility, governed control, and enterprise-grade security. Run streaming jobs with confidence, precision, and speed.

Try for free

Live demo

Unlock Full Streaming Power with Flex

Run your Flink at peak performance, confidently, securely, and at scale. See what’s happening in real time, act instantly, and keep your operations fully compliant.

Get started

Live demo

See everything

Real-time visibility into jobs, checkpoints, metrics, configs, and state.

Act with confidence

Manage the full operational lifecycle of Flink jobs, including job submission, checkpointing, and savepointing.

Stay secure

Enterprise-grade governance with RBAC, SSO, Multi-Tenancy and data masking.

Why Flex is the Enterprise Standard for Apache Flink Control

Inspect everything, instantly

Understand your Flink jobs at a glance. From job graphs to checkpoint history, Flex gives your team the complete picture with enterprise-grade access control, including SSO and RBAC.

Manage the full job lifecycle

Securely manage the full Flink job lifecycle from the UI. Submit new pipelines, trigger savepoints for seamless upgrades or state backups, and cancel jobs when needed.

Intuitive for teams, powerful for pros

Our clean UI is backed by a REST API and integrates seamlessly with Prometheus and Webhooks for advanced monitoring and alerting.

Single view for your entire fleet

Manage your entire Flink fleet from a single control plane. Flex provides a unified view of all your application clusters, whether you have several co-located in one environment or dozens spread across hybrid and cloud infrastructures.

Built for the enterprise

Natively built for the enterprise with multi-tenancy, SSO, granular RBAC, audit logs, and full support for air-gapped deployments

What Makes Flex Unique

Immediate value

Go from installation to full visibility in minutes. A streamlined, lightweight setup means you connect to clusters and manage jobs immediately, skipping complex configuration.

Best-in-class UI

Designed with the same engineer-first ethos as Kpow, our UI translates complex Flink operations into clear, visual workflows, empowering your team to act with confidence.

Vendor-agnostic

Maintain a single, consistent control plane across your entire Flink ecosystem. Flex works seamlessly with a growing number of Flink distributions, including open-source Apache Flink and Ververica Platform, giving you true platform freedom.

Enterprise-trusted

Proven in mission-critical environments for enterprise-grade reliability. For Kpow users, the familiar UI provides a seamless, unified experience across your entire data-in-motion stack.

Immediate value

Install, connect, and start managing jobs in minutes.

Best-in-class UI

Built with the same engineer-first ethos as Kpow

Vendor-agnostic

Works seamlessly across OSS Flink and a growing number of managed Flink distributions.

Enterprise-trusted

Trusted in mission-critical deployments, Flex’s familiar UI makes it a natural extension for Kpow users.

How Teams Use Flex

Flex accelerates stream processing operations across your org:

Job Lifecycle Management

Manage the complete Flink job lifecycle with fine-grained control. Submit jobs from uploaded JARs, resume from savepoints for seamless upgrades or recovery, and safely stop or cancel them when needed.

Deep Job Debugging

Visually inspect real-time job graphs, analyze exceptions, and drill into operator backpressure and watermarks to quickly identify and fix bottlenecks.

Live Task Analysis

Inspect individual task managers, view live logs, analyze thread dumps, and monitor memory to troubleshoot stuck or underperforming tasks.

Platform Observability

Get a unified, real-time view of your cluster's health, including memory and CPU usage, available task slots, and data throughput across all jobs.

Stream & State QA

Manage and monitor checkpoints and savepoints. Validate pipeline behaviour by inspecting task-level metrics, logs, and watermarks.

Governance & Security

Apply fine-grained access rules, redact sensitive data, and maintain audit trails for every action taken in the cluster.

What Customers Say

Engineering leaders trust Factor House to deliver reliable, scalable, and developer‑friendly solutions.

“I am grateful for the empathy and passion the Factor House team has shown in partnering with Airwallex to better understand our pain points to help drive the evolution of this brilliant product.”

Alex Hilton, Chief of Staff-Technology

Article

Foundational Kafka Data Inspection: Shaping Payloads and Optimizing Visibility

Finding actionable information inside high-volume Kafka topics is often hindered by complex serialization formats and overwhelming visual noise. Application teams relying on disconnected CLI tools waste valuable time manually configuring schema registries and parsing massive raw payloads. This article demonstrates how Kpow eliminates configuration friction with Auto SerDes, utilizes kJQ and Projection Expressions to shape nested data, and provides transparent query context to transform Kafka data inspection into a streamlined workflow.

Case Study

How To

Release

Features Overview

Flex is the management platform for enterprise Flink operations. It enhances Apache Flink with a sophisticated UI and a full REST API, providing the security, governance, and deep observability required to manage streaming jobs with confidence.

Comprehensive Job Visibility

Visually inspect job graphs, sub-tasks, operators, and checkpoint history to instantly understand the health and structure of your Flink jobs.

Real-Time Performance Monitoring

Diagnose bottlenecks by visualizing critical Flink metrics, including backpressure, records-per-second, watermarks, and task-level exceptions.

Governed Operational Control

Securely manage the full lifecycle of jobs. Every action is protected by Role-Based Access Controls (RBAC) and recorded in a detailed audit log for full compliance.

Centralized Cluster Management

Monitor and manage jobs across multiple Flink clusters from a single, unified interface designed for large-scale and high-availability operations.

Enterprise-Grade Security

Enforce secure access with your choice of SSO providers (SAML, OIDC) and manage permissions with a robust Role-Based Access Control (RBAC) system.

Powerful REST API

Automate Flink management and integrate with CI/CD pipelines using a comprehensive REST API for complete programmatic control.

Flex Feature Matrix

Community

Perfect for local development or ephemeral environments.

Access Our Community

Enterprise

Packed with features to empower your Flink engineers.

Start free for 30-days

Compatibility

Flink Rest API

Flink SQL

coming soon

Resource Management

Multi-Cluster

User Management

Concurrent User Sessions

LDAP Authentication

SAML Authentication

OpenID Authentication

OAuth2 Authentication

Okta Authentication

KeyCloak Authentication

AWS SSO Authentication

Azure AD Authentication

Github SSO Authentication

Global Access Controls

Role Based Access Controls

Temporary Role Based Access Controls

Simple Workflow for Staged Mutations

Multi-Tenancy Configuration

Deployment

Single Docker Container

Single JAR File

Single Java 8 JAR File

On-Premises

Kubernetes Helm Charts

ECS Compatible

Fargate Compatible

Air-Gapped Deployments

Zero Data Egress

Low Memory Footprint

Low CPU Utilization

Data Governance

User Action Audit Log

Data Masking Policies

Integrations

Prometheus Endpoints for All Metrics

Slack Integration of Audit Log

Support

Github Issue Support Tickets

Zendesk Ticketed Support

Enterprise Support SLA

Used by the World’s Leading Companies

Kpow empowers engineering teams at Fortune 500 companies, fintech innovators, and global platforms, managing hundreds of Kafka clusters. With proven performance at scale and minimal onboarding friction, it’s no wonder teams prefer Kpow over legacy vendor tools.

Alex Hilton, Chief of Staff-Technology

Roadmap Highlights

Explore the Full Product Roadmap

Q2 2026 – Public GA

Q2 2026 – SOC 2 Type 2 Certification

Q1 2026 – SQL Interface for Topic Search

Q2 2025 – Early Access Program

Q1 2025 – Kpow & Flex v94.x Feature Branch

Article

Foundational Kafka Data Inspection: Shaping Payloads and Optimizing Visibility

Case Study

How To

Release

our pricing

Choose Your Plan

Equip your engineers with the tools they need to build real-time systems with confidence.

Best For

Clusters

Features

Support

Community

Free Forever

Get Started

Best For

Individual developers & learning

Clusters

3 (non-production)

Features

- Free forever

- Essential Flink Job Monitoring

- Self-service support

‍

Support

Community Slack & docs

From $3,950

/cluster/year

Start Trial

Talk to Sales

Best For

Teams, SMBs and large enterprises with advanced compliance & governance needs

Clusters

Unlimited

Features

- SSO and RBAC

- REST API

- Prometheus and Webhook (Slack, Teams) Integration

- Administrative Workflows and Audit Logs

‍

Support

- Priority Email support

Explore FLEX Free

Start with a 30-day Trial

Sign-up for a trial to evaluate our fully-featured, enterprise-ready Apache Flink UI free for 30-days in your business environment, or join the Factor House community to accelerate your individual Flink and Kafka development process.

Get Started Free for 30 Days

Explore Factor House Community

Core functionally across ALL Flex licenses

Compatible with OSS Apache Flink and Ververica

Job and task management via intuitive UI and API

Metrics and telemetry for visibility into performance

Consumption and production data inspection

Cluster topology data for real-time insight

Self-service resources: documentation, GitHub, and community Slack