Side by side
Flowise vs LangChain
Both stand on llm application development frameworks. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxMac+3
Flowise offers visual workflow construction, integrations, and deployment options, but its wind-down is a central consideration. Active development has ceased, and the listed end-of-life date is August 31, 2026.
Visit Flowise
Free plan APISelf-hosted
Choose LangChain to build agents around models and tools using its configurable harness, middleware, and wide range of integrations. Look elsewhere if you need multiple LangSmith seats or trace capacity beyond the free Developer allowance without pay-as-you-go charges; Plus costs $39 a month per seat.
Visit LangChainThe facts
| Flowise | LangChain | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Mac, Self-hosted, Web, Windows | API, Self-hosted |
| Lowest paid plan | Starter: $35 a month | See the plans |
| Plans published | 3 | 4 |
| Maker | Not published | Not published |
| Website | flowiseai.com | langchain.com |
| On llm application development frameworks | #3 of 49 | #7 of 49 |
Flowise: what it does well
- Visual builders cover single- and multi-agent workflows.
- Documentation lists connections to 100+ sources and tools.
- Offers cloud, on-premises, and self-hosted deployment.
- Free plan costs nothing.
- Source remains under Apache 2.0.
What to know first
- Active feature development ceased July 29, 2026.
- End of life is listed for August 31, 2026.
- Starter costs $35 a month.
- Official core team presence concluded August 31, 2026.
LangChain: what it does well
- Free, MIT-licensed open-source framework.
- More than 1,000 documented integrations across models, tools, loaders, and vector stores.
- Middleware supports approval, guardrails, retries, routing, and sensitive-data removal.
- Standard interfaces make provider changes possible with minimal code changes.
- LangSmith supports tracing, debugging, and output evaluation.
What to know first
- LangSmith Developer has one seat.
- Developer includes up to 5k base traces monthly before pay-as-you-go charges.
- Enterprise pricing is custom and invoiced annually upfront.
Alternatives to Flowise Alternatives to LangChain The whole list