Updated March 27, 2026
Flowise is an open-source drag-and-drop UI for building LLM flows and AI agents. Built on top of LangChain, it lets users visually connect LLMs, prompts, tools, memory, and vector stores into working applications without writing code. Flowise can be self-hosted and is popular with teams that want the power of LangChain with a visual interface.
Lovable for existing projects — lets non-technical teammates make changes to live codebases and submit GitHub PRs without knowing Git.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Pros
Cons
Choose Flowise if you wantChoose if you want
Choose Sparkles if you wantChoose if you want
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.
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