head to head · open source
Langflow vs serving
Langflow has 154,983 GitHub stars, 10,113 forks, 1,056 open issues and last shipped yesterday. serving has 6,094 stars, 1,235 forks, 165 open issues and last shipped 25 days ago. Langflow leads on adoption by 2,443% (154,983 vs 6,094 stars). Langflow is written in Python under MIT; serving is written in Go under Apache-2.0. Langflow has attracted 7% as many forks as stars, serving 20%. Langflow was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Langflow | serving | |
|---|---|---|
| GitHub stars | ★ 155K | ★ 6.1K |
| License | MIT | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-18 | 2026-08-25 |
| Forks | ⑂ 10K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langflow if
- You weight community size — 155K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick serving if
- You want the serving feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and serving fits your workflow better
About Langflow
Langflow is a visual builder platform for designing, testing, and deploying AI agents and retrieval augmented generation (RAG) pipelines. It lives in the Python based generative AI ecosystem and targets developers building intelligent applications. The project provides a low code interface to assemble components—such as LLMs, vector stores, memory modules, and tools—into executable workflows, while also exposing those workflows as APIs or MCP servers for integration into external applications.
read the full Langflow overview →
About serving
Knative Serving is an Apache 2.0 licensed, Go based Kubernetes component that deploys and serves applications and functions as serverless containers, built for platform engineers and developers who run workloads on Kubernetes and need request driven, scale to zero compute without leaving their own cluster.
read the full serving overview →
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Frequently asked questions
Is Langflow or serving more popular?
Langflow has 154,983 GitHub stars and serving has 6,094. Langflow has the larger community by that measure.
Are Langflow and serving free?
Both are open source. Langflow is licensed under MIT and serving under Apache-2.0. Neither carries a licence fee.
What is the difference between Langflow and serving?
Langflow is written in Python and serving in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Langflow or serving?
Choose Langflow if you want the larger community (154,983 stars) or its MIT licence terms. Choose serving if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.