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Best Sim alternatives

AI tools similar to Sim — Apache-2.0 n8n alternative

Uncut

The lossless, headless coding agent harness. One 7 MB static binary, four tools, plain stdin/stdout, no silent cuts.

Bla

🛡️ BLA (Blind LLM Agents) — Adversarial defense shield that protects binaries, Electron apps, JS bundles, Python, and…

Kanzo

Self-hosted, sharable kanban for humans and agents. One 4.5 MB binary, 4.5 MB of RAM, 10 to 60 tokens per agent reply…

Bama

BAMA: Build Any Mac App. Agent skills to research, clone, design, build, optimize, and test native macOS apps with…

Vvv

一次构建视频模板,多次复用:给 Claude Code、Codex 等 25+ 个 Agent 的开源可编辑婚礼视频模板与 Agent Skill。Build a video template once, reuse it across…

Lampline

Build AI phone agents on your own computer and test every change with an AI caller. Open source, runs free with no API…

Axuse

Accessibility-first browser & computer use for AI agents — one MCP server for every harness (Codex, Claude Code…

Eleven

Agent-first reverse engineering for macOS, Windows and Linux: any ACP agent reads, renames and patches binaries…

Scout

Scout: the open-source browser agent, by Outcrawl. Mirrored automatically from Outcrawl's own repository.

Tracely-ai

Trace-native CI/CD for AI agents: grade production traces, cluster failures, freeze them into replayable regression…

Octopus-SI-OS

A self-evolving agentic OS. A new architecture for agent execution, built on operating-system principles, with the…