Open-source platform to visually build, deploy, and manage LLM apps, agents, and RAG pipelines with drag-and-drop workflows and APIs.
Best Sim Alternatives
Sim: Open-source workspace to visually build, deploy, and manage AI agents with over 1,000 integrations and built-in context storage. Below are the tools in our catalog that cover the same features, grouped by the job they replace, with pricing side by side.
Visual AI agent & workflow builder
Replaces Sim for: Visual agent builder with no-code and low-code options · Supports over 1,000 integrations (Slack, HubSpot, Salesforce, Notion, etc.) · Built-in context storage via tables, files, and knowledge bases
Visually build, test, and deploy AI agents, RAG workflows, MCP servers, and LLM apps with drag-and-drop flows and reusable components.
Run AI agents across Slack, Teams, Google, Notion, Shopify and more to automate real work like summarizing meetings, generating content, and handling customer support.
AI agent orchestration & deployment
Replaces Sim for: Open-source with a freemium pricing model · Code-first and conversational agent development options
Open-source workspace to build, improve, and share AI agents via chat with self-hosting or cloud options.
No-code platform to build, orchestrate, and deploy AI agents for business workflow automation without coding.
Design, deploy, and manage custom AI agents and internal apps from natural-language prompts or a drag-and-drop Studio.
Platform for building, deploying and optimizing production AI agents
Sim vs. alternatives at a glance
| Tool | Pricing | Monthly visits | Compare |
|---|---|---|---|
| Sim | Freemium, from $25 | 117K | |
| Dify | Paid, from $59 | 964K | Compare |
| Langflow | Free, from Free | 175K | Compare |
| Maybe* | Paid, from £97 | 8.5K | Compare |
| Agenta | Freemium, from $5 | 35K | Compare |
| AffinityBots | Freemium, from $29 | 4.6K | Compare |
| Origon | Paid | 705 | Compare |
| Syllable Agentic Platform | Free Trial, from $0.01 | — | Compare |
Questions
- What is the best alternative to Sim?
- Dify is the top pick in our catalog, followed by Langflow and Maybe*. Picks are based on the features each listing describes.
- Is there a free alternative to Sim?
- Yes. Langflow is completely free. 2 more offer a free plan.
- Which Sim alternative is the most popular?
- Dify, with about 964K visits a month — the highest measured traffic among the tools on this page.
- How are these alternatives chosen?
- We compare what each tool in our catalog says it does against Sim's own feature list — category is ignored, so a tool filed elsewhere can still qualify. Matches are grouped by the job they replace. Nobody pays to appear here.