Build automations that
actually make sense.
NexFlow is the no-code automation platform with real AI nodes, real code execution, and full transparency into every execution. Built for developers who refuse black boxes.
The Problem
Automation tools chose the wrong trade-off.
Black boxes with pretty UIs
Zapier and n8n hid the power to make it accessible. You can't write real logic. You can't see what's happening inside. Magic that breaks silently.
Glue code that rots
Custom scripts only you understand. The same HTTP boilerplate written again and again. Two weeks later, nobody knows how it works or why it breaks.
What NexFlow gives you
Real code where you need it. Full visibility into every execution. Composable flows. AI nodes that return structured data. Transparency, not magic.
How it works
From idea to automation in 3 steps.
Design on the canvas
Drag nodes, connect them with edges, configure each one in the panel. The canvas shows your entire automation at a glance.
Run and inspect
Hit Run and get notified when it finishes. The transaction shows exactly which path your data took, what every step received and returned, and why anything failed — in plain language.
Inspect every detail
Every execution saves a full audit trail. Open any transaction to see per-node input, output, duration, and the complete data snapshot.
12 Node Types
Every tool you need.
Nothing you don't.
Compose these nodes on the canvas to build any automation — simple or complex.
Call any REST API or webhook with full header, body and auth control.
Multi-provider LLM — Anthropic, OpenAI, Gemini, Groq, Mistral — with structured JSON output.
Write real JavaScript or Python mid-flow. Full language, zero restrictions.
Compose flows from other flows. Sync or async with result pass-through.
Spawn parallel branches simultaneously on separate threads.
Merge branches — WAIT_ALL, WAIT_FIRST, or WAIT_N quorum.
If/else routing that branches your automation based on data.
Iterate over arrays with index and item injected into context.
Define named values at any point and reference them downstream.
Transform and reshape data between nodes without code.
Terminal node — marks execution as completed successfully.
Terminal node — marks execution as failed with a custom message.
AI Built In
Every major AI model.
One unified node.
Define an output schema, write a prompt, and get structured JSON back — every time. No SDK switching, no prompt engineering frameworks. Just clean data you can use downstream.
- ✓Structured JSON output with schema enforcement
- ✓System + user prompt with {{nex.variable}} injection
- ✓Configurable temperature, max tokens, model
- ✓Automatic retry if JSON parse fails
Supported providers
Your API key, your data. Keys are stored per-user and never leave your account.
Full Transparency
See exactly what
happened. Always.
Every execution is a full audit trail. Per-node input, output, and duration. If something fails, you know exactly where and why — in seconds.
For Developers
No-code speed.
Code-level power.
nex.* data layer
Every node output lands in nex under the name you chose. nex.fetchUser.body.email — never nodes["ca250f8e"].successOutput.result.
Sub-flow calls
Call other NexFlow flows from inside a flow. Build a library of reusable automation primitives.
True parallelism
Fork into branches, run them concurrently with CompletableFuture.allOf(), merge with WAIT_ALL, WAIT_FIRST, or WAIT_N.
Ready to build
something real?
Sign up free. Build your first flow in minutes. No credit card required.