Flowise vs LangFlow: which one to choose in 2026?
Both are open source alternatives to Voiceflow. We compare license, tech stack and features to help you decide which fits your team best.
| Flowise | LangFlow | |
|---|---|---|
| Category | Artificial Intelligence | Artificial Intelligence |
| License | Apache-2.0 | MIT |
| GitHub stars | 34k | 44k |
| Tech stack | Node.js, React | Python, React |
| Replaces | Voiceflow | Voiceflow |
LangFlow has more GitHub stars, which usually indicates a larger community (not necessarily that it's the best option for your use case).
Flowise
Visual AI agent builder, an alternative to Voiceflow.
Pros
- No coding needed to build basic agents
Things to consider
- Very complex flows can become hard to debug visually
LangFlow
Visual editor on LangChain for AI flows, an alternative to Voiceflow.
Pros
- Directly leverages the LangChain integration ecosystem
Things to consider
- Can feel more technical than Flowise for non-developers
Key features
Flowise
- Visual drag-and-drop AI flow editor
- Supports agents, tools and memory
- API and embeddable widget
LangFlow
- Built on the LangChain ecosystem
- Flows exportable as a REST API
- Supports multiple LLM and vector providers