9 Best Open Source Amp Alternatives in 2026

1

OpenCode

Open-source multi-provider coding agent for terminal and desktop

MIT AI coding agent for terminals, desktop apps, and development environments. Supports many cloud and local model providers, codebase understanding, LSP, tools, permissions, sessions, custom commands, MCP, and agent workflows.

Pricing: Open-source client; model API or provider subscription costs may apply.

• Terminal and desktop workflows with IDE integrations
• Many model providers, including local models
• LSP, MCP, tools, permissions, sessions, and custom commands
• Powerful tool permissions require careful configuration
• Terminal-first approach may not suit every developer
• Rapidly changing feature set and external APIs for some providers

2

pi

Minimal extensible terminal coding agent

MIT terminal coding agent with a deliberately small core that developers can extend through TypeScript. Extensions can add tools, commands, keyboard shortcuts, UI, editors, behaviors, and integrations; the agent supports multiple providers, local models, skills, prompt templates, tree-structured sessions, RPC, and scripted modes.

Pricing: Open-source agent; model provider usage is separate.

• Minimal core designed for extensibility
• Multiple providers and local model support
• TypeScript extensions, skills, templates, interactive and scripted modes
• More configuration-oriented and less turnkey
• Less opinionated out of the box
• Developers seeking a complete IDE UX may prefer Cline or Kilo

3

OpenHands

Autonomous software engineering agents in isolated environments

MIT-core software engineering agent platform for tasks that require repository inspection, file changes, command execution, testing, debugging, and integration with issue trackers and source-control platforms. Provides Docker and Kubernetes environments, web UI, CLI, SDK, GitHub and GitLab integration, and multi-agent capabilities; Enterprise components are separately licensed.

Pricing: Open-source core with separately licensed Enterprise functionality and hosted options.

• Autonomous coding in isolated Docker or Kubernetes environments
• Web UI, CLI, SDK, GitHub/GitLab, and issue-driven workflows
• Multi-agent support and self-hosting
• Heavier infrastructure than terminal agents
• Enterprise functionality is separately licensed
• Autonomous operation needs carefully scoped permissions

4

Cline

Open-source VS Code and CLI coding agent

Apache-2.0 coding agent for VS Code and command line. It can read and edit files, execute terminal commands, use browsers, run tests, and perform multi-step tasks with a choice of model providers or local models. Includes Plan/Act workflows, MCP, custom rules, and CI/CD usage.

Pricing: Open-source client; model API usage is separate.

• Strong VS Code integration and CLI
• Multi-file edits, terminal execution, browser control, and tests
• Bring-your-own model, local models, MCP, and custom rules
• Agent workflows can consume significant tokens
• VS Code remains its strongest environment
• Autonomous operation requires careful permission settings

5

Aider

Git-native terminal pair programmer for multi-file changes

Apache-2.0 terminal pair-programming tool that works in existing Git repositories. Coordinates multi-file edits, integrates changes with Git, and can run lint and test commands. Supports many model providers, repository maps, editor-independent workflows, and voice input.

Pricing: Open-source client; model API usage is separate.

• Works directly in Git repositories and can commit changes
• Multi-file edits, repository maps, lint, and test integration
• Many model providers and editor-independent terminal workflow
• Less visual than IDE agents
• Primarily conversational rather than multi-agent
• Recent development activity is lower than some newer tools

6

Kilo

Multi-model coding agent for VS Code, JetBrains, and CLI

MIT agentic coding platform for VS Code, JetBrains IDEs, and the command line. Supports more than 500 model options, bring-your-own API keys, local models, coding, debugging, planning, and codebase Q&A modes, an MCP marketplace, autonomous CI/CD, and mid-task model switching.

Pricing: Open-source tooling; model API usage and optional cloud features are separate.

• VS Code, JetBrains, and CLI support
• 500+ model options, BYOK, local models, and model switching
• Coding, architect, debug, MCP, and CI/CD workflows
• Large feature set can be complex
• Cloud features add another layer beyond local development
• Product changes rapidly

7

Grok Build

Terminal coding agent for the full development lifecycle

Apache-2.0 terminal agent that can plan changes, edit code, run tests, commit to Git, and use parallel subagents. Also supports worktrees, skills, plugins, MCP, hooks, sandboxed execution, headless CI/CD, web search, and project memory.

Pricing: Open-source agent; model access may require provider credentials.

• Plan, edit, test, and commit workflows with parallel subagents
• Git worktrees, skills, plugins, MCP, and hooks
• Sandboxed and headless CI/CD operation
• Newer project with developing ecosystem
• Strong Grok branding and positioning
• Provider access may depend on external APIs

8

Forgecode

Terminal-native multi-agent coding harness with model mixing

Apache-2.0 terminal coding harness using specialized agents for development tasks and aiming to minimize unnecessary model context. Supports model selection for planning, coding, and analysis, skills, and a broad set of LLM providers.

Pricing: Open-source harness; model provider costs are separate.

• Terminal-native multi-agent architecture
• Mix models across planning, coding, and analysis
• Skills and broad LLM provider support
• Smaller community than OpenCode or Cline
• Terminal workflow is more technical
• Newer ecosystem

9

Zero

Configurable terminal coding agent with model choice and permissions.

Zero can inspect repositories, edit files, run commands, and complete development tasks while giving developers control over models and agent permissions.

Pricing: Open source; model-provider costs may apply.

• Terminal-first workflow
• Repository awareness
• Configurable permissions
• Younger project
• Smaller community and ecosystem