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Open Source Manus Alternatives

A curated collection of the 6 best open source alternatives to Manus.

The best open source alternative to Manus is LobeChat. If that doesn't suit you, we've compiled a ranked list of other open source Manus alternatives to help you find a suitable replacement. Other interesting open source alternatives to Manus are: nanobot, ZeroClaw, Kortix, and Agent Zero.

Manus alternatives are mainly AI Agent Platforms but may also be AI Personal Assistants or AI Chat Interfaces. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Manus.

Piotr Kulpinski's profile

Written by Piotr Kulpinski

A collaborative platform to create, schedule, and operate AI agents that handle long-running tasks, team workflows, and automated jobs without constant oversight.

Screenshot of LobeChat website

LobeHub is a platform for building and operating teams of AI agents. Rather than managing individual AI tools one at a time, it lets you assemble agents into coordinated groups, assign them tasks, and let them run. Agents report back on progress while you focus on higher-level decisions.

The agent builder starts from a single sentence. From that, LobeHub automatically configures names, roles, skills, and behaviors. Agents connect to a library of over 312,000 skills, and you can attach any model or modality you want. It works with providers like OpenAI and Anthropic, so you're not locked into one AI backend.

For longer or more complex work, LobeHub supports agent groups that self-assemble based on the task at hand. Multiple agents can work in parallel, iterate on each other's output, and handle multi-step jobs. This matters most for things like large-scale issue triage, content workflows, or anything that would otherwise require constant human coordination. Among AI agent platforms, that kind of parallel execution is still relatively rare.

The platform includes several workspace-style features: Pages for writing and refining documents with multiple agents sharing context, Projects for organizing work, Schedules for time-based task automation, and a shared Workspace with visibility controls for teams. There's also an IM Gateway that connects agents to messaging platforms where your team already communicates.

Agents are designed to improve over time. Personal Memory builds a structured, editable model of how you work. Continual Learning adjusts agent behavior based on patterns it observes. Memory is white-box, meaning you can inspect and edit what the system knows about you rather than treating it as a black box. That's a meaningful difference from tools like Khoj, where memory handling is less transparent.

LobeHub is open source and has a community component where agents and skills can be shared. It's built for individuals and teams who want AI to handle ongoing, multi-step work rather than single-turn interactions. If you're already using a knowledge management platform like Pipeshub or a multi-agent framework like Agno, LobeHub sits closer to the operational end of that spectrum, focused on running work rather than just organizing it.

Lightweight, self-hosted AI agent that runs in a web UI, terminal, or chat app, handling long-running workflows with controlled token budgets.

Screenshot of nanobot website

nanobot is a minimal, self-hosted AI agent designed to run wherever you work: a web UI, your terminal, or a chat interface. It's built for people who want a personal AI agent they control, without the overhead of bloated frameworks or cloud-locked platforms.

The core design philosophy is lean execution. Rather than consuming tokens without restraint, nanobot applies sensible context management and explicit token budgets, so your costs stay predictable. That matters especially for long-horizon tasks, where the agent needs to sustain coherent reasoning across tens or even hundreds of steps without losing the thread.

Key capabilities:

  • Multi-surface operation: runs in a browser-based web UI, a terminal, or directly inside chat apps, so you're not locked into one interface
  • Long-running workflows: maintains steady execution across complex, multi-step tasks without context drift
  • Token budgeting: built-in controls keep spending predictable, unlike agents that leave cost management entirely to the user
  • Embeddable runtime kernel: the agent core is portable, so you can drop it into a business workflow or a personal automation setup without rewiring everything around it
  • Self-hosted: your data stays on your infrastructure; no third-party service holds your conversations or task history

Compared to heavier agent frameworks or fully managed platforms like Agenta, nanobot stays deliberately small. The codebase is compact, the runtime is portable, and the architecture doesn't assume you want a full orchestration platform. It suits developers and technically minded individuals who want an agent they can embed, extend, or just run locally without a lot of ceremony.

It supports automation tasks, developer integrations, and conversational use cases through the same core runtime. The MIT license means you can adapt it freely for personal or commercial use.

A single Rust binary that runs a personal AI agent on your own hardware, connecting to 70+ LLM providers and 30+ messaging channels with built-in sandboxing and cryptographic tool receipts.

Screenshot of ZeroClaw website

Most AI assistants are a seat you rent on someone else's infrastructure. ZeroClaw runs as a single native binary on your own machine, using your own API keys or fully local models like Ollama. No cloud seat, no subscription, no ZeroClaw server in the middle.

The binary is built in Rust and starts in under 20ms. It uses less memory than a browser tab and runs on everything from a workstation to a Raspberry Pi, including ARM and x86. There's no Node, JVM, or Python environment to install.

What it connects to:

  • 70+ LLM providers: local options like LM Studio, llama.cpp, vLLM, and LocalAI, plus hosted providers including Anthropic, OpenAI, Google Gemini, Amazon Bedrock, Mistral, Groq, and any OpenAI-compatible endpoint
  • 30+ channels: Telegram, Discord, WhatsApp, Slack, Signal, iMessage, Matrix, email, IRC, Bluesky, Reddit, Nostr, Notion, webhooks, and more
  • Hardware: GPIO on Raspberry Pi, STM32, Arduino, and ESP32

Security is the default posture, not an add-on.

  • Supervised autonomy: medium-risk actions require your approval before they run; high-risk ones are blocked outright
  • OS-level sandboxes: Landlock, Bubblewrap, Seatbelt, or Docker contain what the agent can touch, enforced by the kernel rather than a prompt
  • Command allowlists: explicit workspace scoping decides what runs and where
  • Tool receipts: every successful tool call can be stamped with an HMAC-SHA256 tag the model cannot forge, making fabricated runs or invented results detectable

YOLO mode exists for trusted dev environments and is strictly opt-in.

The agent supports multiple named agents running from a single daemon, each isolated. Skills package repeatable tasks with their tools. Scheduled jobs, webhook triggers, and channel events all run through the same agent loop inside the same sandbox and allowlists you've scoped. A2A discovery lets agents describe and find one another through the gateway.

With a local model, nothing leaves your machine at all. With a hosted provider, only your prompts go to the provider you chose, using your own key. Dual-licensed MIT OR Apache-2.0.

Manages a team of AI agents across your company, with every agent, skill, memory, and connector stored as versioned files in a git repo you own and self-host.

Screenshot of Kortix website

Kortix is a platform for running AI agents across an entire company, where the whole setup lives in a single git repo you own. Agents, skills, memory, connectors, triggers, and permissions are all plain files. You can grep the company, diff any change, and roll anything back. No settings locked in someone else's database.

It fits teams that want AI agents doing real, multi-step work across sales, engineering, finance, marketing, and ops, not just answering questions. Agents start from Slack, MS Teams, the web, a CLI, a cron schedule, or a signed webhook. Work lands back in the repo as a change request you read as a diff before it merges.

The platform is built in six layers that work together:

  • Git repo as the source of truth. kortix.yaml declares the machine image, connectors, and triggers. Agents and skills are markdown files. Memory accumulates as files over time.
  • Connectors. 3,000+ app integrations plus MCP, OpenAPI, GraphQL, and raw HTTP. Credentials are brokered server-side and never reach the agent's machine. Each tool call can be set to allow, ask, or block, down to the specific arguments passed.
  • Model-agnostic runtime. Pick any model per agent, per session, or per message. Bring your own API keys, use a ChatGPT subscription you already pay for, or point it at any OpenAI-compatible endpoint.
  • Agent harness powered by OpenCode. Turns a model into an agent that plans, uses tools, and finishes multi-step runs. Permissions are set per tool in the agent file, so a git push can be blocked until a human reviews the change request.
  • Isolated sandboxes. Each session boots its own Linux machine with the repo and tools already loaded. Thousands run in parallel with no crossover. Only commits survive.
  • Unified control plane. Web, Slack, mobile, CLI, and API all start the same session type. Cron and webhooks start sessions with no human involved.

Practical examples from the source: an engineering agent reads error logs each morning, reproduces the top failure on its own machine, patches it, and opens a pull request. A finance agent reconciles the ledger, chases missing receipts, and closes the month with the variance explained. A data science agent queries the warehouse on a schedule and posts the chart to Slack before the team wakes up.

Kortix is self-hostable, VPC-deployable, or available as managed cloud. It sits in the AI coding agent orchestrators space but extends well beyond code, covering any business function that can be described as a repeatable job.

Autonomous AI agent framework that operates on its own sandboxed computer, creates tools dynamically, manages memory, and executes multi-step workflows with full transparency.

Screenshot of Agent Zero website

Agent Zero is an agentic AI framework built for people who want autonomous AI that actually does work, not just answers questions. It runs inside a sandboxed Docker environment with its own terminal, file system, and browser, so agents can execute real tasks end-to-end without touching your local machine unless you explicitly connect them.

The core idea is that agents shouldn't need pre-built tools for every situation. Agent Zero creates tools on the fly as tasks demand them, learns from past runs, and self-corrects when something goes wrong. Workflows are fully transparent: you can see what the agent is doing, why, and what it's executing at every step.

Key capabilities:

  • Multi-provider support: Connect any LLM provider without exposing API keys to the agent itself.
  • Dynamic tool creation: Agents write and reuse tools as needed rather than relying on a fixed library.
  • Agentic memory and RAG: Persistent knowledge management lets agents recall context across sessions and build on prior work.
  • Subordinate agents: Spawn specialized sub-agents to handle parallel or delegated tasks within a single workflow.
  • Plugin Hub: Browse, install, and update community plugins directly from the UI, with built-in AI-driven security scanning before deployment.
  • A0 CLI Connector: Bridge the sandboxed agent to your local terminal and project files when you need it.
  • Context engineering: Prompt structure is tuned to stay efficient on local models and scale to larger ones without bloat.

Agent Zero suits developers and power users who want a self-hostable AI personal assistant they can extend, audit, and fully control. Unlike closed systems such as ChatGPT or Manus, every layer is inspectable and modifiable.

The project also has a community governance layer backed by the A0T token on Ethereum BASE L2, letting token holders vote on feature priorities and development allocation. Venice AI integration gives community members access to private AI API keys at no cost.

Runs AI agents inside Trusted Execution Environments on NEAR AI Cloud, keeping credentials encrypted and invisible to the model at all times.

Screenshot of IronClaw website

IronClaw is a secure AI agent runtime built for people who want to hand off real work to an AI agent without handing over their passwords, API keys, and tokens along with it. It runs on NEAR AI Cloud inside Trusted Execution Environments, meaning credentials are encrypted in memory from boot to shutdown. The AI model never sees the raw values.

The core problem it solves is real. Tools like OpenClaw give agents broad system access, but that access cuts both ways. A crafted prompt can trick the model into leaking every secret it holds. Malicious community skills have been found specifically designed to exfiltrate credentials. IronClaw's answer isn't a policy or a warning prompt; it's architecture.

Key security layers:

  • Encrypted vault: Credentials are stored encrypted at rest and injected into outbound requests only at the host boundary, only for endpoints you've pre-approved.
  • Per-tool Wasm sandboxes: Every skill runs in its own WebAssembly container with capability-based permissions. A compromised tool can't reach anything outside its sandbox.
  • Network allowlisting: Tools can only contact endpoints you've explicitly approved. No silent phone-home, no unknown destinations.
  • Real-time leak detection: Outbound traffic is scanned continuously. Anything resembling a secret heading out gets blocked before it leaves.
  • Built in Rust: Memory safety is enforced at compile time. No garbage collector, no buffer overflows, no use-after-free vulnerabilities.

On the practical side, IronClaw handles the kind of recurring busywork that eats time. Inbox triage, daily briefings, meeting prep, deployment health checks, release tracking, invoice parsing, KPI reporting. It connects to Gmail, Google Calendar, Slack, Telegram, GitHub, Linear, Google Sheets, and anything else with an API. Missing an integration? It builds the connector itself from a plain-language description.

It's model-agnostic, compatible with Anthropic, OpenAI, Gemini, Mistral, Ollama, and several others. Deployment is one click on NEAR AI Cloud, with a free starter tier and paid plans scaling up to five concurrent agent instances.

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