Langflow vs Sim
Comparing two open source alternatives to Lindy AI and Relevance AI and Voiceflow and Make and Zapier. Use the comparison below to decide which one fits your needs.
Langflow
MITVisually build and deploy AI agents and workflows in Python, with built-in API and MCP servers. MIT-licensed and backed by DataStax.
Sim
Apache-2.0Sim is an open-source workspace to build, deploy, and orchestrate AI agents and agentic workflows. Visually connect LLMs, tools, and data sources without giving up control.
Side-by-side comparison
| Langflow | Sim | |
|---|---|---|
| License | MIT | Apache-2.0 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 156,582 | 30,129 |
| Forks | 10,400 | 3,906 |
| Open Issues | 1,316 | 352 |
| Last Commit | Nov 13, 2026 | Nov 12, 2026 |
| First Released | Feb 8, 2023 | Jan 5, 2025 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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