FlowSynx is a deterministic orchestrator for composable micro-workflows, enabling reproducible, version-controlled, and audit-ready automation across any environment. With reusable modules and a marketplace-ready design, teams can build, share, and scale workflows efficiently without sacrificing governance or traceability.
- What is FlowSynx?
- How It Works
- Task Lifecycle
- Execution Modes
- Runtime Context
- Why FlowSynx?
- Differentiate & Articulate Uniquely
- Key Features
- Roadmap
- Quick Start Experience
- Build from Source
- Architecture Overview
- User Interfaces
- Related Repositories
- Community & Contributing
- Security
- License
In today’s fast-moving software landscape, teams need repeatable, modular, and secure automation — without being locked into rigid platforms.
FlowSynx redefines orchestration with:
- A .NET-based micro-kernel engine built for performance and reliability
- A plugin-driven architecture that evolves with your needs
- A JSON-based DAG (Directed Acyclic Graph) workflow model that’s both human-readable and machine-friendly
FlowSynx transforms your processes — from data management to API and ML/AI automation — into clear, maintainable, and reusable workflows.
At its core, FlowSynx executes DAG-based workflows where each task represents an atomic operation — reading data, transforming it, sending HTTP requests, or interacting with external systems.
- Workflow JSON — Define tasks, dependencies, and parameters in simple JSON
- Plugins — Modular building blocks for any functionality (file I/O, APIs, cloud storage, data transformation, ML/AI, etc.)
- Execution Engine — Smart orchestration with:
- Dependency resolution (topological sorting)
- Shared execution context and secure state handling
- Asynchronous execution, retries, and timeouts
- Built-in logging, metrics, and auditing
Every task flows through a predictable, reliable lifecycle:
- Initialization – Validates plugin and parameters
- Dependency Wait – Ensures prerequisite tasks are complete
- Execution – Runs the plugin logic (e.g.,
ReadAsync,WriteAsync) - Error Handling – Retries, fallbacks, or workflow failover
- Post-Processing – Logs, stores outputs, and passes results downstream
Choose how you run FlowSynx — on your terms:
| Mode | Description |
|---|---|
| Standalone | Lightweight binary for local or embedded use |
| Dockerized | Ready for CI/CD pipelines and Kubernetes clusters |
| API Mode | Trigger workflows via REST APIs |
CLI (flowctl) |
Command-line power for developers |
- Shared Variables
- Secure Secrets Management
- Plugin Buffers & Metadata
- Real-Time State Tracking
Modern automation is complex — but it doesn’t have to be complicated.
FlowSynx is designed to:
- Empower developers with modularity and openness
- Simplify operations through declarative configuration
- Bridge teams across development, data, and business processes
- Scale effortlessly across environments
Built on clean architecture principles, FlowSynx provides clarity, control, and confidence — even in the most demanding automation scenarios.
There are countless workflow and orchestration engines on the market — but FlowSynx stands apart by focusing on flexibility, developer empowerment, and true portability.
Here’s what makes FlowSynx unique:
- Built entirely in .NET, giving developers seamless integration with the .NET ecosystem.
- Plugin-first architecture: add, remove, or update capabilities dynamically. No core modifications required.
- Supports custom plugins, enabling anything from cloud storage and APIs to ML/AI tasks.
- Workflows are fully declarative in JSON — human-readable and machine-friendly.
- DAG execution ensures reliable dependency handling, asynchronous execution, and full observability.
- Unlike other engines, FlowSynx makes complex workflows easy to version, maintain, and share.
- Integrate approval gates and manual tasks directly into workflows.
- Automate most of the process while keeping humans in control where needed — ideal for enterprise scenarios.
- Run on-premises, in containers, or fully cloud-native — no vendor lock-in.
- Lightweight footprint and fast startup for developer-friendly experimentation.
- Works everywhere: Windows, Linux, macOS, Docker, Kubernetes.
- Discover, share, and manage pre-built and custom plugins via a central Marketplace/Registry.
- Extend capabilities quickly without reinventing the wheel.
- Many orchestration tools either:
- Lock you into a proprietary ecosystem,
- Force heavyweight deployments, or
- Lack support for hybrid and human-in-loop workflows.
- FlowSynx solves these gaps while remaining lightweight, extensible, and fully open-source.
Bottom line: FlowSynx is not just another orchestration engine. It’s a developer-first, plugin-powered, hybrid automation fabric that adapts to your environment — not the other way around.
✅ Plugin-Based Extensibility — Add, upgrade, or remove capabilities dynamically and version-controlled
✅ Cross-Platform Execution — Runs everywhere (Windows, Linux, macOS, Docker, Cloud)
✅ JSON-Defined Workflows — Declarative, portable, and version-controlled
✅ Schema Validation — Catch errors early with JSON schema checks
✅ CLI & SDK Support — Total control for developers and DevOps teams
✅ Robust Authentication & Access Control — Compatible with JWT and Basic Auth, featuring RBAC
✅ Secret Management Integration — Infisical, Azure Key Vault, HashiCorp Vault, AWS Secrets Manager
✅ Triggers & Events — Webhooks, schedules, and file-change detection
✅ Human-in-the-Loop Tasks — Combine automation with human approval
✅ Conditional Flow Control — Execute tasks based on conditions and branching logic
✅ Expression Evaluation — Dynamic parameterization using expressions
✅ Advanced Logging & Auditing — Full transparency into every execution
✅ Error Handling - Configurable Error Handling and Retry Policies per task and workflow level
✅ Marketplace & Registry — Discover and manage plugins easily
✅ Web Console UI — Intuitive dashboard for workflow monitoring and control
✅ Unified Data Abstraction Layer (UDAL) — Simplifies data access across diverse sources
✅ Source-Agnostic Processing — Operate uniformly and interchangeably, regardless of the original data source or protocol
Curious about what’s next? Review the planned milestones in our Roadmap.
Get up and running with FlowSynx in 5 minutes — no complex setup required.
👉 FlowSynx in 5 Minutes (Quickstart)
If Docker is already installed on your system, you can start FlowSynx immediately using a simple Docker command.
Just copy and paste the following into your terminal:
docker run -d --name flowsynx -p 6262:6262 -v flowsynx_data:/app/data flowsynx/flowsynx:1.2.4-linux-amd64 --startThis will:
- Start FlowSynx
- Automatically configure admin credentials (admin / admin)
- Expose the FlowSynx API at
http://localhost:6262(local-only access)
Verify it's running:
curl http://localhost:6262/versionPrefer to run FlowSynx locally?
Download a pre-built binary for your OS from the latest release:
Then run:
flowsynx --startWant to contribute or customize FlowSynx?
You can build it locally in just a few commands.
- .NET 10 SDK — verify with
dotnet --version(should report 10.x) - Git
git clone https://github.com/flowsynx/flowsynx
cd flowsynx
dotnet restore
dotnet build --configuration Release
dotnet test- Works seamlessly on Windows, Linux, and macOS.
- Build outputs are placed in each project’s
bin/Releasedirectory.
Once FlowSynx is running (via Docker or binary), try creating and executing your first workflow using the REST API.
Call this api:
curl -u admin:admin -X POST http://localhost:6262/workflows \
-H "Content-Type: application/json" \
-d '
{
"name": "Hello Workflow",
"description": "A minimal FlowSynx workflow example",
"tasks": [
{
"name": "print_hello",
"type": "",
"parameters": {
"operation": "write",
"path": "results/test.txt",
"data": "Hello, FlowSynx!",
"overwrite": false
}
}
]
}
'{
"data": {
"id": "<UUID>",
"name": "Hello Workflow"
},
"messages": [
"The workflow has been added successfully."
],
"succeeded": true,
"generatedAtUtc": "2025-11-04T14:40:27Z"
}📘 Note: Keep the value — you’ll need it to run the workflow.
curl -u admin:admin -X POST http://localhost:6262/workflows/<UUID>/executionsAfter execution, check the file results/test.txt
inside the FlowSynx container or on your host system — you should see:
Hello, FlowSynx!
For advanced workflows, Docker setup:
📘 Documentation: Getting Started Guide
🧩 Samples: Example Workflows & Configs
- CLI (FlowCtl) — Lightweight command-line orchestration
- REST API Gateway — Secure, API-first automation
- SDKs & Libraries — Integrate FlowSynx into your own apps
- Workflow Orchestrator — Executes and manages JSON-defined DAGs
- Plugin Manager — Loads and maintains plugins dynamically
- Security & Auth Layer — Ensures safe access and execution
- Logging & Auditing Engine — Observability built in
- Trigger Engine — React to events, schedules, and external signals
Deploy FlowSynx locally, in containers, or cloud-native — with complete portability.
Powerful, scriptable, and developer-friendly.
A clean, interactive dashboard for:
- Workflow management
- Real-time monitoring
- Execution logs and metrics
- Human task approvals
| Repository | Description |
|---|---|
| FlowSynx | Core engine and runtime for executing JSON-based DAG workflows with plugin-based orchestration. |
| FlowCtl | Command-line tool for initializing, running, and managing FlowSynx workflows. |
| Console | Web-based dashboard for managing, monitoring, and visualizing workflows. |
| Docs | Official documentation with setup guides, examples, and API references. |
| Samples | Ready-to-run example workflows and configuration templates. |
| Plugin Core | SDK and interfaces for building custom FlowSynx plugins. |
| FlowPack | CLI tool to package and publish FlowSynx plugins as .fspack bundles. |
| C# SDK | .NET SDK for integrating and controlling FlowSynx programmatically. |
| Plugin Marketplace | Central hub to discover, publish, and manage FlowSynx plugins. |
| Plugin Template | .NET project template for creating new FlowSynx plugins quickly. |
Join our growing community of developers and automation experts.
You can:
- 💡 Submit ideas and feature requests
- 🔌 Build and publish plugins
- 🧱 Contribute to the core or documentation
- 🌍 Collaborate in discussions
- 🤝 Review the Code of Conduct to help keep the community welcoming
👉 See CONTRIBUTING.md
We’d love your contributions and feedback! Join our community and discussions on Discord or follow us on X (Twitter):
| Platform | Link |
|---|---|
| Discord (preferred) | Discord |
| X (Twitter) | @flowsynxio |
We take the security of FlowSynx seriously.
If you discover a vulnerability, please review our Security Policy for responsible disclosure guidelines.
Thank you for helping us keep the community safe!
FlowSynx is open-source and licensed under the MIT License.
See LICENSE for details.
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Your support helps others discover the project and drives continued innovation.
